Just for plane buffs. re-edited footage
From the "Quartet" album Produced by Sir George Martin. If you search for original footage Sky fighters (les chevaliers du ciel). Try this one also https://www.youtube.com/watch?v=dRn_NJI_Q-Q its a WW2 P-40 on my channel.

Ultravox perform Sleepwalk on Top of the Pops, 1980.
HD broadcast of SD content.

What do you do if you are a tiny caddisfly larva growing up in a torrent of water and debris? Simple. You build a shelter out of carefully selected pebbles and some homespun waterproof tape.

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DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.

* NEW VIDEOS EVERY OTHER TUESDAY! *

We already mimic them to make fly-fishing lures. But now scientists believe copycatting one tiny insect could hold promise for repairing human tissues and setting bones.

Instead of stitches and screws, doctors may soon call on the next generation of medical adhesives — glues and tape — to patch us up internally.

The inspiration? Caddisflies, a type of stream-dwelling, fish-baiting insects that live in creeks all across the United States.

As a larva, the caddisfly constructs a tiny tube-like house for itself, called a case, entirely underwater, using pebbles and its incredible homespun tape as the mortar.

Thanks to the qualities of this amazing silk, the case not only holds up when submerged, it is strong enough to protect the caddisfly’s soft lower body amid forces many times its body weight.

Any tape, including this one, has two basic components: the flat ribbon, or backing, and the layer of sticky stuff, or the glue. From the materials science standpoint, caddisfly tape is extraordinary in both departments.

Caddisfly silk biomimicry is only in its infancy, but one day, a similar compound might be used inside the body, which is another watery environment, to mend soft tissues and even repair hard ones, such as teeth and bone.

In the streambed, or brook, the caddisfly’s case eventually becomes a cocoon. Like its land-based cousins, the butterflies and moths, from whom it diverged 250 millions years ago, the caddisfly larva undergoes a metamorphosis. It seals up its case with a so-called “hat stone” and emerges months later as a winged adult.

--- Where do caddisflies live?

Caddisflies are most common in shallow, cold, turbulent streams, where the water is highly oxygenated.

--- What do caddisflies eat?

Caddisflies are herbivores, they eat decaying plant matter and algae on the rocks in the streams where they live.

--- What is so special about caddisfly silk?

Engineers are interested in two attributes of caddisfly silk. First of all, it can bond to something, such as a pebble, underwater, which no glue people have made can replicate. Second its “viscoelastic” properties allow to it harmlessly absorb physical forces. When stretched, it doesn’t snap back like a rubber band. It returns to its original shape slowly and safely. It's an engineering marvel.

---+ Read the entire article on KQED Science:

https://ww2.kqed.org/science/2....016/08/09/sticky-str

---+ For more information:

Troutnut.com
http://www.troutnut.com/hatch/....12/Insect-Trichopter

---+ More Great Deep Look episodes:

This Vibrating Bumblebee Unlocks a Flower's Hidden Treasure
https://www.youtube.com/watch?v=SZrTndD1H10

These Carnivorous Worms Catch Bugs by Mimicking the Night Sky
https://www.youtube.com/watch?v=vLb0iuTVzW0

---+ See some great videos and documentaries from the PBS Digital Studios!

It's Okay to Be Smart: Venom: Nature’s Killer Cocktails
https://www.youtube.com/watch?v=Qd92MuVZXik

Gross Science: Sea Turtles Get Herpes, Too
https://www.youtube.com/watch?v=bpqP9bUUInI

---+ Follow KQED Science:

KQED Science: http://www.kqed.org/science
Tumblr: http://kqedscience.tumblr.com
Twitter: https://www.twitter.com/kqedscience

---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is also supported by HopeLab, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Smart Family Foundation and the members of KQED.
#deeplook

Turtles grow up without parents, which might sound lonely. But for threatened baby turtles raised in a zoo it’s an advantage: they can learn to catch crickets all by themselves. There’s a paradox, though. When they are ready to leave the nursery, there is little wilderness where they can make a home.

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DEEP LOOK: a new ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.


Read more on baby turtles:
https://ww2.kqed.org/science/2....016/01/26/these-craz


Where do turtles live?
Western pond turtles live most of their lives in the water, in freshwater lakes.


What do turtles eat?
The meat-eaters feed on crustaceans like crayfish, dragonfly nymphs and fish.


Are turtles reptiles?
Turtles are reptiles not amphibians. They are considered reptiles since they live in water.


Are turtles endangered?
"There are only 300 species, and most of them are doing quite poorly." The turtles haven’t been doing well in their native habitat in the western United States. In California, they’re a species of “special concern.”


Why can turtles be raised in zoos?
Most turtle species grow up without parents, which makes them easy to raise in zoos and help conservation. Once a female western pond turtle lays her eggs near a lake or pond, she never returns to the nest. Because they lack parental care, turtles don’t imprint on zoo keepers.


More great Deep Look episodes:

Nature's Scuba Divers: How Beetles Breathe Underwater:
https://youtu.be/T-RtG5Z-9jQ

Nature's Mood Rings: How Chameleons Really Change Color:
https://youtu.be/Kp9W-_W8rCM

Newt Sex: Buff Males! Writhing Females! Cannibalism!
https://youtu.be/5m37QR_4XNY


See also another great video from the PBS Digital Studios!

It's Okay to Be Smart:
https://youtu.be/fWc46NCnldo

If you’re in the San Francisco Bay Area, The San Francisco Zoo is currently head-starting nine western pond turtle hatchlings and the Oakland Zoo, 16. The baby turtles at the San Francisco Zoo are on display in the Children’s Zoo, while the Oakland Zoo is raising theirs in a back room where six small tubs create the impression of a maternity ward.
http://www.sfzoo.org/
http://oaklandzoo.org/


KQED Science: http://www.kqed.org/science
Tumblr: http://kqedscience.tumblr.com
Twitter: https://www.twitter.com/kqedscience

Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is also supported by HopeLab, the David B. Gold Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Smart Family Foundation and the members of KQED.
#deeplook

Planarians are tiny googly-eyed flatworms with an uncanny ability: They can regrow their entire bodies, even a new head. So how do they do it?

You can learn more about CuriosityStream at https://curiositystream.com/deeplook
Support Deep Look on Patreon!! https://www.patreon.com/deeplook

DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. Explore big scientific mysteries by going incredibly small.

Nelson Hall wants you to know that the googly-eyed flatworm he just sliced into four pieces is going to be OK.

Three of the flatworm’s four pieces have started to wriggle away from each other and its head is moving in circles under Hall’s microscope. “The head will just go off and do its own thing,” said Hall, a doctoral student of bioengineering at Stanford University.

But in three weeks, the head, as well as the other pieces, will each have grown into a complete flatworm just like the one Hall sliced up, dark brown and about a half-inch long.

Hall and researchers around the world are hard at work trying to understand how these flatworms, called planarians, use powerful stem cells to regenerate their entire bodies, an ability humans can only dream of.

Animals like starfish, salamanders and crabs can regrow a tail or a leg. Planarians, on the other hand, can regrow their entire bodies – even their heads, which only a few animals can do.

---What is the difference between healing and regeneration?
When we suffer a severe injury, the best we can hope for is that our wounds will heal. “Healing is more like closing the wound and cleaning debris. It’s too short of a process to have tissue replacement,” said Hall. “Regeneration is replacing the tissue that was lost.”

---What are pluripotent stem cells?
If planarians can regrow body parts, why can’t we? Key to planarians’ regenerative ability are powerful cells called pluripotent stem cells, which make up one-fifth of their bodies and can grow into every new body part. Humans only have pluripotent stem cells during the embryonic stage, before birth. After that, we mostly lose our ability to sprout new organs.

“We have a couple of tissues that can regenerate, like the liver, the outer layers of the skin and the inner layers of the intestine, and the bone marrow,” said Dr. Stephen Badylak, Deputy Director of the McGowan Institute for Regenerative Medicine at the University of Pittsburgh. “But the way we heal most tissues is by forming scar tissue.”

Scientists hope that studying planarians could lead to treatments for humans in which our stem cells could be coaxed one day to regrow severed limbs or sick organs.

---How to grow a fingertip.
Doctors are limited in what they can currently do to help people who lose a limb or part of one. Badylak, who doesn’t study planarians, has developed a treatment at the University of Pittsburgh that helps patients regrow their fingertips after an accident.

He applies a powder made of animal collagen and substances that stimulate cells to grow, to help form a scaffold that attracts stem cells from the parts of the nail that weren’t cut off. The stem cells regrow the fingertip, which isn’t identical to the one that was cut off, but is functional.

---+ Read the entire article on KQED Science:
https://www.kqed.org/science/1....933246/want-a-whole-

---+ For more information:
Regeneration in Nature: Francesc Cebrià’s blog on animal regeneration: https://regenerationinnature.wordpress.com

---+ More great Deep Look episodes:

Daddy Longlegs Risk Life ... and Especially Limb ... to Survive
https://www.youtube.com/watch?v=tjDmH8zhp6o

Take Two Leeches and Call Me in the Morning
https://www.youtube.com/watch?v=O-0SFWPLaII

These Fighting Fruit Flies Are Superheroes of Brain Science
https://www.youtube.com/watch?v=yvd3X1N0jUU

---+ See some great videos and documentaries from PBS Digital Studios!

Reactions: Why Tardigrades are Some of the Most Hardcore Critters on the Planet
https://www.youtube.com/watch?v=dEW1_Pba3z4

It’s Okay to Be Smart: Is Height All In Our Genes?
https://www.youtube.com/watch?v=0cuO5OSDMbw

---+ Follow KQED Science:

KQED Science: http://www.kqed.org/science
Tumblr: http://kqedscience.tumblr.com
Twitter: https://www.twitter.com/kqedscience

---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios. Deep Look is a project of KQED Science, which is also supported by the National Science Foundation, the Templeton Religion Trust, the Templeton World Charity Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Fuhs Family Foundation and the members of KQED.

#deeplook #planaria #flatworm

Support Deep Look on Patreon! https://www.patreon.com/deeplook

A baby hairworm hitches a ride inside a cricket, feasting on its fat until the coiled-up parasite is ready to burst out. Then it hijacks the cricket's mind and compels it to head to water for a gruesome little swim.

SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt

DEEP LOOK is an ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small.

If you’re out on a hike and look down at a puddle, you might spot a long, brown spaghetti-shaped creature whipping around madly in a figure 8.

It’s a hairworm – also known as a horsehair worm or Gordian worm – and researchers have described 350 species around the world. Good news: It isn’t interested in infecting or attacking humans. But if you had happened on the puddle a few hours earlier, you might have witnessed a gruesome spectacle – the hairworm wriggling out of a cricket’s body, pushing its way out like the baby monster in the movie “Alien.”

How a hairworm ends up in a puddle, or another water source such as a stream, hot tub or a pet’s water dish, is a complex story. A young hairworm finds its way into a cricket or similar insect like a beetle or grasshopper, and once it’s grown into an adult, the parasite takes over its host’s brain to hitch a ride to the water.

As a result of the infection, crickets stop growing and reproducing. Male crickets infected by hairworms even lose their chirp, said Ben Hanelt, a biologist at the University of New Mexico who studies hairworms.

--- What *is* a hair worm?
A hair worm or hairworm – pick your spelling – is a nematomorph. Nematomorpha are a group of parasites. They’re long, thin worms that can grow to be several meters long inside their host.

--- Can humans be infected by hair worms?
There are reports of humans and cats and dogs being infected by hair worms, but hair worms aren’t after us or our pets because they can’t grow inside us, said Hanelt. They can only grow inside a host like a cricket or a related insect.

“What happens is that a dog, a cat, a human will ingest an adult (hair worm) somehow,” said Hanelt. “Could a cricket crawl in your sandwich before you take a bite? I don’t know. None of the studies that are out there talk about that. What they have been reported to do is to cause in many people intestinal distress.”

--- How do hair worms control crickets’ minds?
Scientists don’t understand the precise mechanism yet, but they believe that hairworms either boost chemicals in the crickets’ brains or pump chemicals into their brains.

---+ Read the entire article on KQED Science:
https://www.kqed.org/science/1....937775/these-hairwor

---+ For more information:

Hairworm Biodiversity Survey: http://www.nematomorpha.net

---+ More great Deep Look episodes:

Jerusalem Crickets Only Date Drummers
https://www.youtube.com/watch?v=mHbwC-AIyTE

How Mosquitoes Use Six Needles to Suck Your Blood
https://www.youtube.com/watch?v=rD8SmacBUcU

Identical Snowflakes? Scientist Ruins Winter For Everyone
https://www.youtube.com/watch?v=Gojddrb70N8

---+ Follow KQED Science:

Instagram: https://www.instagram.com/kqedscience/
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Facebook Watch: https://www.facebook.com/DeepLookPBS/
Patreon: https://www.patreon.com/deeplook

---+ Shoutout!
?Congratulations ? to Sushant Mendon who won our GIF CHALLENGE over at the Deep Look Community Tab: https://www.youtube.com/user/K....QEDDeepLook/communit

---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios. Deep Look is a project of KQED Science, which is also supported by the National Science Foundation, the Templeton Religion Trust, the Templeton World Charity Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Fuhs Family Foundation and the members of KQED. #deeplook #hairworms #wildlife

Jellyfish don’t have a heart, or blood, or even a brain. They’ve survived five mass extinctions. And you can find them in every ocean, from pole to pole. What’s their secret? Keeping it simple, but with a few dangerous tricks.

DEEP LOOK: a new ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.

--- Why do Jellyfish Sting?

Jellyfish sting to paralyze their prey. They use special cells called nematocysts. Jellyfish don’t have a brain or a central nervous system to control these stinging cells, so each one has it’s own trip wire, called a cnidocil.

When triggered, the nematocyst cells act like a combination of fishing hook and hypodermic needle. They fire a barb into the flesh of the jellyfish’s prey at 10,000 times the force of gravity – making it one of the fastest mechanisms in the animal kingdom. As the barb latches on, a thread-like filament bathed in toxin erupts from the barb and delivers the poison.

The nematocyst only works if the barb can penetrate the skin, which is why some jellies are more dangerous to humans than others. The smooth-looking tentacles of a sea anemone (a close relative of jellies that also has nematocyst cells) feel like sandpaper to the touch. Their nematocysts are firing, but the barbs aren’t powerful enough to puncture your skin.

--- Read the article for this video on KQED Science:

https://ww2.kqed.org/science/2....015/09/29/why-jellyf


--- More great DEEP LOOK episodes:

Pygmy Seahorses: Masters of Camouflage
https://www.youtube.com/watch?v=Q3CtGoqz3ww

You're Not Hallucinating. That's Just Squid Skin.
https://www.youtube.com/watch?v=0wtLrlIKvJE

The Fantastic Fur of Sea Otters
https://www.youtube.com/watch?v=Zxqg_um1TXI

--- Related videos from the PBS Digital Studios Network!

I Don't Think You're Ready for These Jellies - It’s Okay to Be Smart
https://www.youtube.com/watch?v=a4DQQe5p5gc

Why Neuroscientists Love Kinky Sea Slugs - Gross Science
https://www.youtube.com/watch?v=QGHiyWjjhHY

What Physics Teachers Get Wrong About Tides! | Space Time
https://www.youtube.com/watch?v=pwChk4S99i4



--- More KQED SCIENCE:

Tumblr: http://kqedscience.tumblr.com
Twitter: https://www.twitter.com/kqedscience
KQED Science: http://ww2.kqed.org/science


Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is supported by HopeLab, The David B. Gold Foundation; S. D. Bechtel, Jr. Foundation; The Dirk and Charlene Kabcenell Foundation; The Vadasz Family Foundation; Smart Family Foundation and the members of KQED.
#deeplook

We've all heard that each and every snowflake is unique. But in a lab in sunny southern California, a physicist has learned to control the way snowflakes grow. Can he really make twins?

SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt

DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe. Explore big scientific mysteries by going incredibly small.

* NEW VIDEOS EVERY OTHER TUESDAY! *

California's historic drought is finally over thanks largely to a relentless parade of powerful storms that have brought the Sierra Nevada snowpack to the highest level in six years, and guaranteed skiing into June. All that snow spurs an age-old question -- is every snowflake really unique?

“It’s one of these questions that’s been around forever,” said Ken Libbrecht, a professor of physics at the California Institute of Technology in Pasadena. “I think we all learn it in elementary school, the old saying that no two snowflakes are alike.”

--- How do snowflakes form?
Snow crystals form when humid air is cooled to the point that molecules of water vapor start sticking to each other. In the clouds, crystals usually start forming around a tiny microscopic dust particle, but if the water vapor gets cooled quickly enough the crystals can form spontaneously out of water molecules alone. Over time, more water molecules stick to the crystal until it gets heavy enough to fall.

--- Why do snowflakes have six arms?
Each water molecule is each made out of one oxygen atom and two hydrogen atoms. As vapor, the water molecules bounce around slamming into each other. As the vapor cools, the hydrogen atom of one molecule forms a bond with the oxygen of another water molecule. This is called a hydrogen bond. These bonds make the water molecules stick together in the shape of a hexagonal ring. As the crystal grows, more molecules join fitting within that same repeating pattern called a crystal array. The crystal keeps the hexagonal symmetry as it grows.

--- Is every snowflake unique?
Snowflakes develop into different shapes depending on the humidity and temperature conditions they experience at different times during their growth. In nature, snowflakes don’t travel together. Instead, each takes it’s own path through the clouds experiencing different conditions at different times. Since each crystal takes a different path, they each turn out slightly differently. Growing snow crystals in laboratory is a whole other story.

---+ Read the entire article on KQED Science:
https://ww2.kqed.org/science/2....017/04/11/identical-

---+ For more information:

Ken Libbrecht’s online guide to snowflakes, snow crystals and other ice phenomena.
http://snowcrystals.com/

---+ More Great Deep Look episodes:
Can A Thousand Tiny Swarming Robots Outsmart Nature? | Deep Look
https://www.youtube.com/watch?v=dDsmbwOrHJs
What Gives the Morpho Butterfly Its Magnificent Blue? | Deep Look
https://www.youtube.com/watch?v=29Ts7CsJDpg&list=PLdKlciEDdCQDxBs0SZgTMqhszst1jqZhp&index=48
The Amazing Life of Sand | Deep Look
https://www.youtube.com/watch?v=VkrQ9QuKprE&list=PLdKlciEDdCQDxBs0SZgTMqhszst1jqZhp&index=51
The Hidden Perils of Permafrost | Deep Look
https://www.youtube.com/watch?v=wxABO84gol8

---+ See some great videos and documentaries from the PBS Digital Studios!
The Science of Snowflakes | It’s OK to be Smart
https://www.youtube.com/watch?v=fUot7XSX8uA
An Infinite Number of Words for Snow | PBS Idea Channel
https://www.youtube.com/watch?v=CX6i2M4AoZw
Is an Ice Age Coming? | Space Time | PBS Digital Studios
https://www.youtube.com/watch?v=ztninkgZ0ws

---+ Follow KQED Science:

KQED Science: http://www.kqed.org/science
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---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is also supported by HopeLab, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Smart Family Foundation and the members of KQED.
#deeplook

Why are itchy lice so tough to get rid of and how do they spread like wildfire? They have huge claws that hook on hair perfectly, as they crawl quickly from head to head.

JOIN our Deep Look community on Patreon! https://www.patreon.com/deeplook

SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt

DEEP LOOK is an ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small.

Head lice can only move by crawling on hair. They glue their eggs to individual strands, nice and close to the scalp, where the heat helps them hatch. They feed on blood several times a day. And even though head lice can spread by laying their eggs in sports helmets and baseball caps, the main way they get around is by simply crawling from one head to another using scythe-shaped claws.

These claws, which are big relative to a louse’s body, work in unison with a small spiky thumb-like part called a spine. With the claw and spine at the end of each of its six legs, a louse grasps a hair strand to hold on, or quickly crawl from hair to hair like a speedy acrobat.

Their drive to stay on a human head is strong because once they’re off and lose access to their blood meals, they starve and die within 15 to 24 hours.

--- How do you kill lice?
Researchers found in 2016 that lice in the U.S. have become resistant to over-the-counter insecticide shampoos, which contain natural insecticides called pyrethrins, and their synthetic version, known as pyrethroids.

Other products do still work against lice, though. Prescription treatments that contain the insecticides ivermectin and spinosad are effective, said entomologist John Clark, of the University of Massachusetts, Amherst. They’re prescribed to kill both lice and their eggs. Clark said treatments such as suffocants, which block the lice’s breathing holes, and hot-air devices that dry them up, also work. He added that tea tree oil works both as a repellent and a “pretty good” insecticide. Combing lice and eggs out with a special metal comb is also a recommended treatment.

--- How long do lice survive?
It takes six to nine days for their eggs to hatch and about as long for the young lice to grow up and start laying their own eggs. Adult lice can live on a person’s head for up to 30 days, according to the Centers for Disease Control and Prevention (CDC).

--- Can your pet give you lice?
No. Human head lice only live on our heads. They can’t really move to other parts of our body or onto pets.

---+ Read the entire article on KQED Science:
https://www.kqed.org/science/1....939435/how-lice-turn

---+ For more information:
Visit the CDC’s page on head lice: https://www.cdc.gov/parasites/lice/head/index.html

---+ More Great Deep Look episodes:

How Mosquitoes Use Six Needles to Suck Your Blood:
https://www.youtube.com/watch?v=rD8SmacBUcU

How Ticks Dig In With a Mouth Full of Hooks:
https://www.youtube.com/watch?v=_IoOJu2_FKE

---+ Shoutout!

Congratulations to ?HaileyBubs, Tiffany Haner, cjovani78z, יואבי אייל, and Bellybutton King?, who were the first to correctly ID the species and subspecies of insect in this episode over at the Deep Look Community Tab:

https://www.youtube.com/channe....l/UC-3SbfTPJsL8fJAPK


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Bill Cass, Justin Bull, Daniel Weinstein, David Deshpande, Daisuke Goto, Karen Reynolds, Yidan Sun, Elizabeth Ann Ditz, KW, Shirley Washburn, Tanya Finch, johanna reis, Shelley Pearson Cranshaw, Johnnyonnyful, Levi Cai, Jeanine Womble, Michael Mieczkowski, TierZoo, James Tarraga, Willy Nursalim, Aurora Mitchell, Marjorie D Miller, Joao Ascensao, PM Daeley, Two Box Fish, Tatianna Bartlett, Monica Albe, Jason Buberel

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---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios. Deep Look is a project of KQED Science, which is also supported by the National Science Foundation, the Templeton Religion Trust, the Templeton World Charity Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Fuhs Family Foundation and the members of KQED.

Ants don’t eat leaves. They use them to grow white tufts of nutritious fungus to feed their offspring. Their success as farmers has made leafcutter ants into fungus tycoons, complete with their own underground cities and huge half-inch soldiers to patrol them.

DEEP LOOK: a new ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.

What do ants eat?

Though leafcutter ants drink the sap in leaves for energy, they don’t eat them. Instead, they use them to grow something else. Leafcutters use leaf pieces to feed a fungus that grows in white tufts in their nests. The ants eat the fungus and feed it to their brood.

How old are ants?

To give you an idea, while humans have farmed for around 12,000 years, ants have been doing it for 60 million.

How many ants are there in the world?

If you bundled together all the ants in the world, there would be more of them than people – they’re the dominant biomass, says Brian Fisher, chair of the Department of Entomology at the California Academy of Sciences, in San Francisco. This is because all 30,000 species of ants are social. They have many ways of making a living.

How strong are ants?

Leafcutter ants haul leaf pieces through fields or forests to their underground nests. For a human, this feat would be the equivalent of carrying more than 600 pounds between our teeth.

Why are ants important to the soil?

The activity of ants aerates the soil, making it easier for water and oxygen to get through. They also contribute organic matter.

More great Deep Look episodes:

What Happens When You Put a Hummingbird in a Wind Tunnel?
https://www.youtube.com/watch?v=JyqY64ovjfY

Newt Sex: Buff Males! Writhing Females! Cannibalism!
https://www.youtube.com/watch?v=5m37QR_4XNY

Pygmy Seahorses: Masters of Camouflage
https://www.youtube.com/watch?v=Q3CtGoqz3ww

See also another great video from the PBS Digital Studios!

It's Okay to Be Smart: What's The Most Successful Species on Earth?
https://www.youtube.com/watch?v=fWc46NCnldo

And this one is also a favorite:

How to get Ants to carry a sign - Smarter Every Day 92
https://www.youtube.com/watch?v=-ZZzcw9ifDQ

Read an extended article on how leafcutter ants grow a fungus from leaf pieces:

http://ww2.kqed.org/science/20....15/06/11/where-are-t

If you’re in the San Francisco Bay Area, you can see live leafcutters at the Oakland Zoo or the California Academy of Sciences, in San Francisco.

http://www.oaklandzoo.org
http://www.calacademy.org

The compact book “The Leafcutter Ants: Civilization by Instinct,” by Bert Hölldobler and Edward O. Wilson, has detailed black and white drawings, photos and a fascinating description of the mating habits of leafcutter ant queens. The queen accumulates all the sperm she’ll need for her entire reproductive life during a single mating frenzy. After that, males are no longer necessary: Leafcutter colonies are made up entirely of female ants.

KQED Science: http://ww2.kqed.org/science
Tumblr: http://kqedscience.tumblr.com
Twitter: https://www.twitter.com/kqedscience

Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is supported by HopeLab, The David B. Gold Foundation; S. D. Bechtel, Jr. Foundation; The Dirk and Charlene Kabcenell Foundation; The Vadasz Family Foundation; Smart Family Foundation and the members of KQED.
#deeplook

Humans aren’t the only creatures that get frustrated. Squirrels do too. One researcher wants to know, could there be an evolutionary benefit to losing your cool?

SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt

DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.

* NEW VIDEOS EVERY OTHER TUESDAY! *

YouTube viewers are well-acquainted with the squirrel genre: Thousands of videos that show squirrels going to great lengths to extract seeds from bird feeders (https://www.youtube.com/watch?v=FgDa_cpgHWs), or the old favorite, squirrels stuffing their cheeks (https://www.youtube.com/watch?v=_15UrPHkVQo).

Maybe squirrels are so popular because we see some of ourselves in them. This is part of what fueled Mikel Delgado’s interest in the fox squirrels she saw at the University of California, Berkeley. An animal behaviorist and doctoral student there, she likes to quote from Charles Darwin’s book “The Descent of Man, and Selection in Relation to Sex,” in which the English naturalist proposed that the differences between humans and other animals aren’t that clear-cut.

“It was controversial because people thought animals were machines and didn’t feel pain,” she said.

Inspired by Darwin, Delgado was intrigued by squirrels’ emotional worlds. The way to tell what they’re feeling, researchers have found, is to watch their tails. When threatened by a predator like a dog, a fox squirrel whips its tail in an s-shaped pattern that researchers call “flagging.”

Delgado wondered what else she could learn from watching squirrels flag their tails. For instance, do they get frustrated, the way that people do? So she devised an experiment to explore this question.

She taught some of the fox squirrels on campus to lift the lid of a plastic box to find a walnut inside. When the squirrel ate the nut, she dropped another one in. This way, she trained the squirrels to expect a walnut when they looked inside. This training was important because frustration is usually defined as not getting what you expect.

Then she replaced the walnut with corn – which squirrels don’t like as much – or left the box empty. These squirrels flagged their tails. For a third group, she locked the box. They flagged their tails the most. They got aggressive, a hallmark of frustration. And they bit, toppled and dragged the box, trying to open it.

That makes Delgado think that perhaps frustration has an evolutionary purpose, that it isn’t just for blowing off steam, but is instead a way to gather up energy to “brute-force” a solution.

--+ Is frustration an emotion?

“It’s a little bit controversial,” said Delgado. “It depends on who you talk to.”

Researchers don’t consider frustration one of the basic, or universal, emotions. In the 1960s, psychologist Paul Ekman identified six universal emotions: joy, anger, sadness, surprise, fear and disgust:

https://www.youtube.com/watch?v=-PFqzYoKkCc

Frustration is related to anger, but researchers don’t consider frustration a basic emotion. “There’s a question as to what exactly it is,” said Delgado. “Sometimes you see it described very specifically as a task: For example, when you expect a soda and you don’t get it from the vending machine. And sometimes you see it described as the response to the task.”

---+ Read the entire article on KQED Science:
https://ww2.kqed.org/science/2....016/09/20/watch-thes

---+ For more information:

The lab of Lucia Jacobs, where Mikel Delgado does her research: http://jacobs.berkeley.edu/

---+ More Great Deep Look episodes:

Can a New “Vaccine” Stem the Frog Apocalypse?
https://www.youtube.com/watch?v=-IXVcyCZVBg

These Crazy Cute Turtles Want Their Lake Back
https://www.youtube.com/watch?v=YTYFdpNpkMY

---+ See some great videos and documentaries from PBS Digital Studios!

BrainCraft: The Power of Sadness in Inside Out
https://www.youtube.com/watch?v=ST97BGCi3-w

PBS Idea Channel: 3 Fallacies For Election Season!
https://www.youtube.com/watch?v=REp4zCum3XY

---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is also supported by HopeLab, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Smart Family Foundation and the members of KQED.
#deeplook #squirrel #squirrelbehavior

Chameleons don't change color to match their environment; it’s just the opposite. How do they do it? By manipulating tiny crystals in their skin. Now, UC Berkeley researchers are on a quest to create synthetic chameleon skin inspired by these reptiles’ uncanny ability.

DEEP LOOK: a new ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.

--- How do Chameleons Change Color?

Chameleons are some of the most brilliantly colored animals on the planet. But how did they evolve the ability to change color?

Scientists used to believe that chameleons changed color by spreading out pigments in their skin, much like octopuses or squid do.

The top layer of chameleon skin – called the epidermis – contains yellow pigment cells called xanthophores, and red pigment cells called erythrophores. But the amount of pigment in the cells stays the same, even when the chameleon changes color.

Just beneath the chameleon’s skin is a layer of cells called iridophores. These cells contain microscopic salt crystals, which are arranged in a three-dimensional pattern like oranges stacked on a fruit stand.

When light hits the crystals, some wavelengths are absorbed and some are reflected. The result, to our eyes, is the beautiful rainbow of colors on the chameleon’s skin. But what we’re actually seeing is light that is bouncing off of these tiny crystals. What we perceive as green, for example, is blue wavelengths of light being reflected off the crystals and through the layer of yellow xanthophore cells in the chameleon’s epidermis. The result is bright green skin that contains no green pigment!

The process of changing color is called metachrosis.

--- Why do Chameleons Change Color?

Chameleons don’t change color to match their environment. In fact, it’s just the opposite.

Their baseline is camouflage.

When chameleons are relaxed, they’re mostly green. They naturally blend into their home in the forest canopy. They even mimic leaves by dancing around a little.

But when they feel threatened, annoyed, or just want to show a little swagger, that’s when their color changes.

Scientists once thought that chameleons color-changing abilities allowed them to better camouflage themselves. Most species of chameleons live high in the forest canopy and their various shades of green provide natural camouflage. Even their movement provides camouflage – they dance around to mimic leaves blowing in the wind.

In fact, chameleons change color primarily to communicate with each other, as though they were living mood rings. Males will warn each other about their territory and females will change color to let males know whether they’re interested in breeding.

Chameleons also have a second layer of iridiophore cells just beneath the first. The crystals in that layer are larger and reflect light waves in the infrared wavelengths. This suggests that chameleons are also changing colors to regulate their temperature, according to Milinkovitch. Chameleons are cold-blooded and heat their bodies with the warmth of the sun.

Read the article for this video on KQED Science:
http://ww2.kqed.org/science/20....15/08/25/natures-moo


--- More great DEEP LOOK episodes:

Where Are the Ants Carrying All Those Leaves?
https://www.youtube.com/watch?v=-6oKJ5FGk24

What Happens When You Put a Hummingbird in a Wind Tunnel?
https://www.youtube.com/watch?v=JyqY64ovjfY

Pygmy Seahorses: Masters of Camouflage
https://www.youtube.com/watch?v=Q3CtGoqz3ww

--- Related video from the PBS Digital Studios Network!

Nature's Most Amazing Animal Superpowers - It’s Okay to be Smart
https://www.youtube.com/watch?v=e69yaWDkVGs


--- Other Great Science Videos About Chameleons

How Do Chameleons Change Color? - Veritasium
https://www.youtube.com/watch?v=SQggDnScsvI

True Facts About The Chameleon - zefrank1
https://www.youtube.com/watch?v=UR_byRbXxvs

--- More KQED SCIENCE:

Tumblr: http://kqedscience.tumblr.com
Twitter: https://www.twitter.com/kqedscience
KQED Science: http://ww2.kqed.org/science


Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is supported by HopeLab, The David B. Gold Foundation; S. D. Bechtel, Jr. Foundation; The Dirk and Charlene Kabcenell Foundation; The Vadasz Family Foundation; Smart Family Foundation and the members of KQED.
#deeplook

Octopuses and cuttlefish are masters of underwater camouflage, blending in seamlessly against a rock or coral. But squid have to hide in the open ocean, mimicking the subtle interplay of light, water, and waves. How do they do it? (And it is NOT OCTOPI)

SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt

DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. Explore big scientific mysteries by going incredibly small.

* NEW VIDEOS EVERY OTHER TUESDAY! *

--- How do squid change color?

For an animal with such a humble name, market squid have a spectacularly hypnotic appearance. Streaks and waves of color flicker and radiate across their skin. Other creatures may posses the ability to change color, but squid and their relatives are without equal when it comes to controlling their appearance and new research may illuminate how they do it.

To control the color of their skin, cephalopods use tiny organs in their skin called chromatophores. Each tiny chromatophore is basically a sac filled with pigment. Minute muscles tug on the sac, spreading it wide and exposing the colored pigment to any light hitting the skin. When the muscles relax, the colored areas shrink back into tiny spots.

--- Why do squid change color?

Octopuses, cuttlefish and squid belong to a class of animals referred to as cephalopods. These animals, widely regarded as the most intelligent of the invertebrates, use their color change abilities for both camouflage and communication. Their ability to hide is critical to their survival since, with the exception of the nautiluses, these squishy and often delicious animals live without the protection of protective external shells.

But squid often live in the open ocean. How do you blend in when there's nothing -- except water -- to blend into? They do it by changing the way light bounces off their their skin -- actually adjust how iridescent their skin is using light reflecting cells called iridophores. They can mimic the way sunlight filters down from the surface. Hide in plain sight.

Iridophores make structural color, which means they reflect certain wavelengths of light because of their shape. Most familiar instances of structural color in nature (peacock feathers, mother of pearl) are constant–they may shimmer when you change your viewing angle, but they don't shift from pink to blue.

--- Read the article for this video on KQED Science:
http://ww2.kqed.org/science/20....15/09/08/youre-not-h


--- More great DEEP LOOK episodes:

What Gives the Morpho Butterfly Its Magnificent Blue?
https://www.youtube.com/watch?v=29Ts7CsJDpg

Nature's Mood Rings: How Chameleons Really Change Color
https://www.youtube.com/watch?v=Kp9W-_W8rCM

Pygmy Seahorses: Masters of Camouflage
https://www.youtube.com/watch?v=Q3CtGoqz3ww

--- Related videos from the PBS Digital Studios Network!

Cuttlefish: Tentacles In Disguise - It’s Okay to Be Smart
https://www.youtube.com/watch?v=lcwfTOg5rnc

Why Neuroscientists Love Kinky Sea Slugs - Gross Science
https://www.youtube.com/watch?v=QGHiyWjjhHY

The Psychology of Colour, Emotion and Online Shopping - YouTube
https://www.youtube.com/watch?v=THTKv6dT8rU


--- More KQED SCIENCE:

Tumblr: http://kqedscience.tumblr.com
Twitter: https://www.twitter.com/kqedscience
KQED Science: http://ww2.kqed.org/science


Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is supported by HopeLab, The David B. Gold Foundation; S. D. Bechtel, Jr. Foundation; The Dirk and Charlene Kabcenell Foundation; The Vadasz Family Foundation; Smart Family Foundation and the members of KQED.
#deeplook #squid #octopus

Earwigs are equipped with some pretty imposing pincers on their rear, and they're not afraid to use them. But when it comes to these appendages, size isn't everything.

You can learn more about CuriosityStream at https://curiositystream.com/deeplook.
SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt

DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small.

Many animals seem to show a preference for symmetry in a potential mate. It can be a clue that the mate has the genes necessary to develop properly and thrive in an environment full of stresses and dangers.

But in some critters buck the trend. Like the earwig, a diminutive insect found on every continent except Antarctica.

Andrew ZInk, an associate professor of biology at San Francisco State University, has been looking at how symmetry affects earwigs success when it comes to social interactions.

He’s studying maritime earwigs, a larger and more powerful cousin to the common European earwig you might find in your backyard. Both creatures bear fearsome looking pincers on their backsides. And they aren’t afraid to use them to defend themselves. Zink knows all about that.

--- Do earwigs climb into your ear?
The quick answer is no. Earwigs are not interested in climbing into your ear to lay their eggs or otherwise. They’re no more likely than any other bug to accidentally find its way into you ear. The name earwig come from the old english words for ear and insect. It may have been named after the shape of the common European earwig’s wings, which when extended resemble a human ear.

--- Do earwigs pinch people?
Earwigs will use their pincers to defend themselves, but the pinch is typically not strong enough to be considered dangerous.

--- Do earwigs fly?
Male common European earwigs have wings and can fly to disperse and find mates. Females do not have wings or fly. Neither male nor female maritime earwigs have wings or fly.

--- What do earwigs eat?
Most earwigs are scavengers and omnivores. In addition to scavenging and eating plants, the common European earwigs also hunts small prey like aphids. Maritime earwigs are carnivorous hunting smaller arthropods like sand hoppers.

---+ Read the entire article on KQED Science:

https://ww2.kqed.org/science/2....018/06/26/what-do-ea

---+ For more information:

Biologists probe asymmetric warfare between earwigs
https://news.sfsu.edu/biologis....ts-probe-asymmetric-

Asymmetric Forceps Increase Fighting Success among Males of Similar size in the Maritime Earwig
https://onlinelibrary.wiley.co....m/doi/abs/10.1111/j.

Sexual selection by the seashore: the roles of body size and weaponry in mate choice and competition in the maritime earwig (Anisolabis maritima)
http://viyengar.clasit.org/wp-....content/uploads/2017

---+ More Great Deep Look episodes:

Watch These Cunning Snails Stab and Swallow Fish Whole | Deep Look
https://www.youtube.com/watch?v=jYMjLgPFSso

This Is Why Water Striders Make Terrible Lifeguards | Deep Look
https://www.youtube.com/watch?v=E2unnSK7WTE&t=19s

Take Two Leeches and Call Me in the Morning | Deep Look
https://www.youtube.com/watch?v=O-0SFWPLaII


---+ See some great videos and documentaries from PBS Digital Studios!

What the World’s Cutest Animal Can Teach Us About Saving Ourselves | Hot Mess
https://www.youtube.com/watch?v=IF8ym4g2SCU

The Deadpool Salamander | It's Okay To Be Smart
https://www.youtube.com/watch?v=uGutfyDOmu0

Why Do We Eat Artificial Flavors? | Origin Of Everything
https://www.youtube.com/watch?v=iNaJ31EV13U

---+ Follow KQED Science:

KQED Science: http://www.kqed.org/science
Tumblr: http://kqedscience.tumblr.com
Twitter: https://www.twitter.com/kqedscience

---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios. Deep Look is a project of KQED Science, which is supported by the Templeton Religion Trust and the Templeton World Charity Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Fuhs Family Foundation Fund and the members of KQED.
#deeplook #earwig #pincers

Support Deep Look on Patreon!!
https://www.patreon.com/deeplook

Why can't you just flick a tick? Because it attaches to you with a mouth covered in hooks, while it fattens up on your blood. For days. But don't worry – there *is* a way to pull it out.

SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt

DEEP LOOK: a new ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small.

Spring is here. Unfortunately for hikers and picnickers out enjoying the weather, the new season is prime time for ticks, which can transmit bacteria that cause Lyme disease.

How they latch on – and stay on – is a feat of engineering that scientists have been piecing together. Once you know how a tick’s mouth works, you understand why it’s impossible to simply flick a tick.

The key to their success is a menacing mouth covered in hooks that they use to get under the surface of our skin and attach themselves for several days while they fatten up on our blood.

“Ticks have a lovely, evolved mouth part for doing exactly what they need to do, which is extended feeding,” said Kerry Padgett, supervising public health biologist at the California Department of Public Health in Richmond. “They're not like a mosquito that can just put their mouth parts in and out nicely, like a hypodermic needle.”

Instead, a tick digs in using two sets of hooks. Each set looks like a hand with three hooked fingers. The hooks dig in and wriggle into the skin. Then these “hands” bend in unison to perform approximately half-a-dozen breaststrokes that pull skin out of the way so the tick can push in a long stubby part called the hypostome.

“It’s almost like swimming into the skin,” said Dania Richter, a biologist at the Technische Universität Braunschweig in Germany, who has studied the mechanism closely. “By bending the hooks it’s engaging the skin. It’s pulling the skin when it retracts.”

The bottom of their long hypostome is also covered in rows of hooks that give it the look of a chainsaw. Those hooks act like mini-harpoons, anchoring the tick to us for the long haul.

“They’re teeth that are backwards facing, similar to one of those gates you would drive over but you're not allowed to back up or else you'd puncture your tires,” said Padgett.

--- How to remove a tick.
Kerry Padgett, at the California Department of Public Health, recommends grabbing the tick close to the skin using a pair of fine tweezers and simply pulling straight up.

“No twisting or jerking,” she said. “Use a smooth motion pulling up.”

Padgett warned against using other strategies.

“Don't use Vaseline or try to burn the tick or use a cotton swab soaked in soft soap or any of these other techniques that might take a little longer or might not work at all,” she said. “You really want to remove the tick as soon as possible.”

--- What happens if the mouth of a tick breaks off in your skin?
Don’t worry if the tick’s mouth parts stay behind when you pull.

“The mouth parts are not going to transmit disease to people,” said Padgett.

If the mouth stayed behind in your skin, it will eventually work its way out, sort of like a splinter does, she said. Clean the bite area with soap and water and apply antibiotic ointment.

---+ Read the entire article on KQED Science: https://www.kqed.org/science/1....920972/how-ticks-dig

---+ For more information:
Centers for Disease Control information on Lyme disease:
https://www.cdc.gov/lyme/

Mosquito & Vector Control District for San Mateo County, California:
https://www.smcmvcd.org/ticks


---+ More Great Deep Look episodes:

How Mosquitoes Use Six Needles to Suck Your Blood
https://www.youtube.com/watch?v=rD8SmacBUcU

So … Sometimes Fireflies Eat Other Fireflies
https://www.youtube.com/watch?v=oWdCMFvgFbo

---+ See some great videos and documentaries from the PBS Digital Studios!

Above the Noise: Are Energy Drinks Really that Bad?
https://www.youtube.com/watch?v=5l0cjsZS-eM

It’s Okay To Be Smart: Inside an ICE CAVE! - Nature's Most Beautiful Blue
https://www.youtube.com/watch?v=P7LKm9jtm8I


---+ Follow KQED Science:
KQED Science: http://www.kqed.org/science
Tumblr: http://kqedscience.tumblr.com
Twitter: https://www.twitter.com/kqedscience

---+ About KQED
KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios. Deep Look is a project of KQED Science, which is supported by the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Fuhs Family Foundation Fund and the members of KQED.
#deeplook #ticks #tickbite

You may think that you've got the house to yourself, but chances are you have about 100 different types of animals living with you. Many of them are harmless, but a few can be dangerous in ways you wouldn't expect. New research explores exactly whom you share your home with and how they got there.

SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt

DEEP LOOK: a new ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.

---+ About Dust Mites

With the warming weather it’s the season for spring cleaning. But before you reach for the broom and mop, take a moment to look at who else is sharing your home with you. The number of uninvited guests you find in your dustpan may surprise you.

A recent study published in the journal PeerJ took up the challenge of cataloging the large numbers of tiny animals that live in human dwellings. The researchers found that the average home contains roughly 100 different species of arthropods, including familiar types like flies, spiders and ants, but also some kinds that are less well known like gall wasps and book lice. And no matter how much human residents may clean, there will always be a considerable number of mini-roommates.

“Even as entomologists we were really surprised. We live in our houses all the time, so we thought we’d be more familiar with the kind of things we’d come across. There was a surprising level of biodiversity,” said Michelle Trautwein, assistant curator of entomology at the California Academy of Sciences in San Francisco.

---+ What are dust mites?

Dust mites are tiny animals, related to spiders, that are usually too small to be seen with the naked eye. They feed on dead skin that humans shed every day and their droppings may cause allergic reactions and may aggravate asthma, especially in children.

---+ How do you minimize dust mites?

It’s practically impossible to completely rid a home of dust mites, but frequent cleaning and removing carpeting can help. Wet cleaning like mopping helps keep from stirring up dust while cleaning. The most effective way to keep dust mite populations down is to keep the indoor humidity level low. Dust mites can only survive in humid environments.

---+ How do you see dust mites?

Dust mites are about .2mm long. You can see dust mites with a powerful magnifying glass, but you can get a better view by using a microscope.

Read the entire article on KQED Science:
http://ww2.kqed.org/science/20....16/04/05/meet-the-du


---+ More great DEEP LOOK episodes:

The Bombardier Beetle And Its Crazy Chemical Cannon
http://ww2.kqed.org/science/20....16/04/05/meet-the-du

Where Are the Ants Carrying All Those Leaves?
https://www.youtube.com/watch?v=-6oKJ5FGk24

Banana Slugs: Secret of the Slime
https://www.youtube.com/watch?v=mHvCQSGanJg

--- Super videos from the PBS Digital Studios Network!

It's Okay To Be Smart: How Do Bees Make Honey?
https://youtu.be/nZlEjDLJCmg

Gross Science: What's Living On Your Contact Lenses?
https://www.youtube.com/watch?v=wRMKzsU9zec

Gross Science: You Have Mites Living On Your Face
https://www.youtube.com/watch?v=oMmCWx8vySs

--- More content from KQED Science, Northern California's PBS and NPR affiliate:

KQED Science: http://www.kqed.org/science
Tumblr: http://kqedscience.tumblr.com
Twitter: https://www.twitter.com/kqedscience

Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is also supported by HopeLab, the David B. Gold Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Smart Family Foundation and the members of KQED.
#deeplook

To protect herself and her eggs, female webspinners shoot super-fine silk from their front feet. They weave the strands to build a shelter that serves as a tent, umbrella and invisibility cloak. But shooting silk from her feet requires her to moonwalk to get around.

SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt
Please support us on Patreon! https://www.patreon.com/deeplook

DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small.
---

With the holidays just around the corner, it’s that time of year when you’re ready to burn off Thanksgiving turkey and Christmas cookie calories by heading outdoors for a hike. Maybe you’ve noticed what looks like spider webs woven in between weeds alongside the trail, or poking out from under rocks or draped across logs.

But take a closer look – those webs might actually not be spider webs. A lot of them are silken habitats, known as 'galleries,' created by insects called webspinners.

---+ Read the entire article on KQED Science:

https://www.kqed.org/science/1949380/

--- Where do webspinners live?
You find them living in a variety of habitats all over the world, from humid tropical rain forests to dry, hotter areas.

--- Do only adults spin silk?
Actually, everybody spins silk, the males, females and the nymphs. It’s completely unique for insects to have that ability.

--- Who is briefly featured in the episode turning over the log?
While only her hands make a short cameo in the video, Janice Edgerly-Rooks, is a professor of biology at Santa Clara University. She’s been studying these insects for most of her career and was invaluable to us in the production of our episode.

---+ For more information:
Janice Edgerly-Rooks’ at Santa Clara University
https://www.scu.edu/cas/biolog....y/faculty/edgerly-ro

---+ More Great Deep Look episodes:

It’s a Bug’s Life: https://www.youtube.com/playli....st?list=PLdKlciEDdCQ

---+ Shoutout!

?Congratulations ?to the following fans on our YouTube community tab for correctly identifying the insects *besides webspinners* that produce silk with their front feet: the balloon flies of the Empididae family, such as Hilara maura.

João Farminhão
TheWhiteScatterbug
Ryan Stuart
Anthony Nguyen
henry chu
biozcw

---+ Thank you to our Top Patreon Supporters ($10+ per month)!

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---+ Follow KQED Science and Deep Look:

Patreon: https://www.patreon.com/deeplook
Instagram: https://www.instagram.com/kqedscience/
Twitter: https://www.twitter.com/kqedscience
KQED Science on kqed.org: http://www.kqed.org/science
Facebook Watch: https://www.facebook.com/DeepLookPBS/

---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios. Deep Look is a project of KQED Science, which is also supported by the National Science Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Fuhs Family Foundation, Campaign 21 and the members of KQED.

#webspinners #insect #deeplook

Biper y sus Amigos - Somos Soldaditos

Amiguitos les presentamos nuestro videoclip, recordemos que todos somos soldados de Jesús.

Escuchanos en las plataformas digitales
Spotify:
https://open.spotify.com/album..../7D5iViMUxXlPr6rVVml
TIDAL:
https://tidal.com/browse/artist/4068995
iTunes:
https://itunes.apple.com/mx/ar....tist/biper-y-sus-ami

Escucha Nuestra Playlist en Spotify creada especialmente para ti:
https://open.spotify.com/user/....0xjqbzh0admmhmcljq1f

Suscribete, comparte y comenta en nuestros vídeos:
https://www.youtube.com/user/Biperysusamigos

Letra:

Soldado biper
Presente mi capitán
¿Usted anda en caballo?
No, mi capitán

¿Anda en avión?
No mi capitán
¿Esta en la infantería?
No mi capitán

¿Entonces de que soldado me habla biper?
Soy un soldado de jesus
Muy bien entonces.

Somos soldaditos, siervo del señor
Vamos en defensa de nuestro evangelio.

Aunque no soy de la infantería
Caballeria, artilleria
Aunque en avión, no ande volando...
Pero soldado soy...

Soldado soy de jesus
(x2)

Soldado biper
¡Si mi capitan!
¿Cómo hace la artillería?.
Tatatatatata...

Somos soldaditos, siervo del señor
Vamos en defensa de nuestro evangelio.

¿Cómo hace la aviación?
aaaaahhhmmmm....
Muy bien soldado biper.

Aunque no soy de la infantería
Caballeria, artilleria
Aunque en avión, no ande volando...
Pero soldado soy...

Soldado soy de jesus
(x2)

Aunque no soy de la infantería
(¿Como hace la caballería?)
*Sonido cabalgando*
Caballeria, artilleria
Aunque en avión, no ande volando...
Pero soldado soy...

Siempre con cristo


HEAVEN NETWORKS, HEAVEN MUSIC GROUP, HEAVEN KIDS, HEAVEN MUSIC & HEAVEN PUBLISHING

Biper y Sus Amigos - El Arca de Noé (Video Oficial) [4K]

Te presentamos una super canción la cual te contara una sorprendente historia bíblica.

Escuchanos en las plataformas digitales
Spotify:
https://open.spotify.com/album..../7D5iViMUxXlPr6rVVml
TIDAL:
https://tidal.com/browse/artist/4068995
iTunes:
https://itunes.apple.com/mx/ar....tist/biper-y-sus-ami

Escucha Nuestra Playlist en Spotify, Te Encantará:
https://open.spotify.com/user/....0xjqbzh0admmhmcljq1f

Suscribete, comparte y comenta en nuestros vídeos:
https://www.youtube.com/user/Biperysusamigos

Síguenos en nuestras redes sociales:
Facebook https://www.FB.com/biperysusamigosoficial
Twitter:
https://twitter.com/biperoficial

Letra de la Canción:
Hombre muy famoso
de la historia fue Noé
Hizo un arca inmensa que media 80 pies
La pinto con alquitrán y le puso un ventanal
Y a los animales dos en dos los hizo entrar

Doña cebra entro con
traje a rayas con placer
La siguió el caballo la serpiente cascabel
El ratón el cuerpo espín el monito orangután
La jirafa el burro la paloma y el zorzal
//Ee-o-e, ee-o-e, ee-o-e en el arca de No- e – é //

Escucha nuestra playlist en Spotify creada especialmente para ti:
https://open.spotify.com/user/....0xjqbzh0admmhmcljq1f

Biper y sus amigos en un canal de canciones infantiles divertidas, fáciles de aprender y con un buen mensaje para la vida.



HEAVEN NETWORKS, HEAVEN KIDS, HEAVEN MUSIC GROUP, HEAVEN MUSIC & HEAVEN PUBLISHING

Biper Y Sus Amigos - Cepillo Mis Dientes

Les compartimos este vídeo en el cual nuestros niños aprenderán la importancia del cuidado de los dientes de una manera muy divertida.

Escuchanos en las plataformas digitales
Spotify:
https://open.spotify.com/album..../7D5iViMUxXlPr6rVVml
TIDAL:
https://tidal.com/browse/artist/4068995
iTunes:
https://itunes.apple.com/mx/ar....tist/biper-y-sus-ami

Escucha Nuestra Playlist en Spotify creada especialmente para ti:
https://open.spotify.com/user/....0xjqbzh0admmhmcljq1f

Suscribete, comparte y comenta en nuestros vídeos:
https://www.youtube.com/user/Biperysusamigos

Síguenos en nuestras redes sociales:
Facebook y Twitter:
https://www.FB.com/biperysusamigosoficial
https://twitter.com/biperoficial

Letra de "Cepillo Mis Dientes" :
Paletas de colores
Los dulces ricos son
Pero dañan los dientes
Si los comes muchas veces

Sabrosos caramelos
De azúcar quiero mas
Pero tambien debemos
Nuestros dientes cuidar

Por eso yo cepillo mis dientes
Como toda toda la gente

Por eso yo cepillo mis dientes
Como toda toda la gente
Que quiere cuidar sus dientes
Los que Dios con mucho mas

Paletas de frambuesa
Y goma de mascar
Lastimaran tus dientes
Si comes muchas mas

Los dulces son rellenos
Algunos comeré
Visitare al dentista
Una vez al mes

Puedo comer dulces
Pero no demasiado
Y además cepillo mis dientes
Como toda toda la gente


HEAVEN NETWORKS, HEAVEN MUSIC GROUP, HEAVEN MUSIC & HEAVEN PUBLISHING