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user45
8 vistas · 6 años hace

Pill bugs. Doodle bugs. Potato bugs. Wood Shrimp. Whatever you call them, there’s something less creepy about these critters than other insects. Maybe it’s because they’re not insects at all.

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* NEW VIDEOS EVERY OTHER TUESDAY! *

With winter rains, Bay Area pill bugs are out in force. Fortunately, they’re one of our most beloved “bugs.” Pill bugs. Doodle bugs. Potato bugs. Wood Shrimp. Whatever you call them, there’s something less creepy about these critters than other insects. Maybe it’s because they’re not insects at all.

Pill bugs are more closely related to a shrimp and lobsters than crickets or butterflies. Their ancestors lived in the sea, but ancient pill bugs crawled out millions of years ago to carve a life for themselves on dry land.

You can see the evidence if you take a close look at them, so that’s exactly what we did for this episode of Deep Look, an ultra-high definition wildlife video series produced by KQED and PBS DIgital Studios.

“Kids love them,” said Jonathan Wright, a professor of biology at Pomona College who studies the charismatic creepy-crawlies. After all, who hasn’t delighted as a youth in annoying a pill bug until it defensively curls up into a little armored ball?

Some adventurous foragers even eat pill bugs. Their flavor is said to resemble other crustaceans, earning pill bugs the moniker “wood shrimp”.

“I personally haven’t tasted one,” said Wright, “but I’ve spoken to people that have. They didn’t get a particularly high approval rating. Pill bugs have a lot of soil in their gut.”

They may not be ready to replace shrimp as an appetizer, but according to Wright, the evidence of the pill bug’s evolutionary lineage lies underneath its shell.

--- What are pill bugs related to?

Pill bugs are terrestrial crustaceans. They’re more closely related to marine creatures like lobsters and shrimp than crickets or other insects.

--- If pill bugs have gills, can they survive underwater?

Most pill bugs will drown within a few hours if submerged because their pleopod gills have become better at removing oxygen from air and less good at removing oxygen from water

--- Why do pill bugs roll into a ball?

Pill bugs roll into a ball to protect themselves from potential predators. They will also roll up, a process called conglobation, to keep from drying out if they don’t have access to enough moisture.

--- What do pill bugs eat?

Pill bugs mostly eat decaying plant matter but also consume fungus, algae and lichens.

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

https://ww2.kqed.org/science/2....017/01/17/roly-polie

---+ For more information:

Respiratory physiology of the Oniscidea: Aerobic capacity and the significance of pleopodal lungs. Jonathan C. Wright and Kevin Ting


---+ More Great Deep Look episodes:

The Double-Crossing Ants to Whom Friendship Means Nothing
https://www.youtube.com/watch?v=fguo3HvWjb0

The Snail-Smashing, Fish-Spearing, Eye-Popping Mantis Shrimp
https://www.youtube.com/watch?v=Lm1ChtK9QDU

These Termites Turn Your House into a Palace of Poop
https://www.youtube.com/watch?v=DYPQ1Tjp0ew&t=83s

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

A Venus Flytrap Works Just Like Your Brain | Brain Craft
https://www.youtube.com/watch?v=s0prAxQTuAA

What are antibubbles? | Physics Girl
https://www.youtube.com/watch?v=w5UMyck8D64

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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 #pillbug #isopod

user45
8 vistas · 6 años hace

Straight out of science fiction, the fearsome wormlion ambushes prey at the bottom of a tidy - and terrifying - sand pit, then flicks their carcasses out. These meals fuel its transformation into something unexpected.

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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. Explore big scientific mysteries by going incredibly small.
---
Ominous creatures that lurk deep underground in the desert, like the sandworms in the classic science fiction novel "Dune," aren’t just make-believe. For ants and other prey, wormlions are a terrifying reality.

While quite small—they can grow up to an inch—wormlions are fly larvae that curl up their bodies like slingshots. Usually found under rock or log overhangs in dry, sandy landscapes, they’ll energetically fling soil, sand and pebbles out of the way to dig pit traps.

Once an unlucky critter falls in, wormlions move at lightning speed and quickly wrap their bodies around their victims. Squeezing them like boa constrictors, they also inject them with a paralyzing venom. They feed this way for several years, until they transform into adults.

Joyce Gross, a computer programmer for the UC Berkeley Natural History Museums, is fascinated by their unique hunting behavior.

“They have such a weird life history," she said. "They're the only flies that dig pits like this, and wait for prey to fall in, just like antlions.”

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

https://www.kqed.org/science/1....941850/meeting-a-wor

--- Are antlions and wormlions related?

While they use a similar hunting technique with pitfall traps, they’re actually two separate species.

--- How are antlions and wormlions different from each other?

Antlions have big jaws, while wormlions have tiny mouthparts typical of other flies. They also dig pits differently. Antlions (genus Myrmeleon) create deeper pits by digging backwards in a spiral-shaped path.

---+ For more information:

Read "Demons of the Dust" (1930) by William Morton Wheeler: https://books.google.com/books..../about/Demons_of_the

---+ More Great Deep Look episodes:

Creepy Crawly Videos: https://www.youtube.com/watch?v=Yb26BBvAAWU&list=PLdKlciEDdCQBYF3x2RYLhPH0-tP_u2nRX

---+ Shoutout!

?Congratulations ?to the following fans for correctly identifying the creature's genus in our community tab challenge: Gar Báge, Phil Conti, Pikaia Battaile, Trinidadmax, and BorderLander .

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ThePeaceOfBread, Jeremy Gutierrez, Bill Cass, Justin Bull, Daniel Weinstein, Chris B Emrick, Karen Reynolds, Tea Torvinen, m_drunk, David Deshpande, Noah Hess, Daisuke Goto, Companion Cube, WhatzGames, Edwin, ThePeaceOfBread, Richard Shalumov, Elizabeth Ann Ditz, pearsryummy, Samuel Bean, Shirley Washburn, Kristell Esquivel , Jiayang Li, Jeremy Gutierrez, Carlos Zepeda, KW, johanna reis, Robert Warner, Monica Albe, Elizabeth Wolden, Cindy McGill, Sayantan Dasgupta, Robert Amling, Kilillith, Shelley Pearson Cranshaw, Pamela Parker, Kendall Rasmussen, Joshua Murallon Robertson, Kenia Villegas, Breanna Tarnawsky, Sonia Tanlimco, Bluapex, Ivan Alexander, Allen, Michele Wong, Johnnyonnyful, Tommy Tran, Rick Wong, Dean Skoglund, Laurel Przybylski, Levi Cai, Beckie, Jane Orbuch, Nathan Wright, Nathan Padilla, Jason Buberel, Sean Tucker, Carl, Mark Joshua Bernardo, Titania Juang, Daniel Voisine, Michael Mieczkowski, Kyle Fisher, Kirtan Patel, Jeanine Womble, JanetFromAnotherPlanet, Kallie Moore, SueEllen McCann, Jeanne Sommer, Edwin Rivas, Geidi Rodriguez, Benjamin Ip, Willy Nursalim, Katherine Schick, Aurora Mitchell, Two Box Fish, Daisy Trevino , Ricardo Martinez, Marjorie D Miller, Ben Espey, Cory, Eric Carter, PM Daeley, Ahegao Comics, Iver Soto, Chris Murphy, Joao Ascensao, Nicolette Ray, Yvan Mostaza, TierZoo, Gerzon

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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.

#wormlion #insect #deeplook

user45
8 vistas · 6 años hace

Honey bees make honey from nectar to fuel their flight – and our sweet tooth. But they also need pollen for protein. So they trap, brush and pack it into baskets on their legs to make a special food called bee bread.

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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. Explore big scientific mysteries by going incredibly small.

Spring means honey bees flitting from flower to flower. This frantic insect activity is essential to growing foods like almonds, raspberries and apples. Bees move pollen, making it possible for plants to grow the fruit and seeds they need to reproduce.

But honey bees don’t just move pollen from plant to plant. They also keep a lot for themselves. They carry it around in neat little balls, one on each of their hind legs. Collecting, packing and making pollen into something they can eat is a tough, intricate job that’s essential to the colony’s well-being.

Older female adult bees collect pollen and mix it with nectar or honey as they go along, then carry it back to the hive and deposit it in cells next to the developing baby bees, called larvae. This stored pollen, known as bee bread, is the colony’s main source of protein.

“You don’t have bees flying along snacking on pollen as they’re collecting it,” said Mark Carroll, an entomologist at the US Department of Agriculture’s Carl Hayden Bee Research Center in Tucson. “This is the form of pollen that bees are eating.”

--- What is bee bread?
It’s the pollen that worker honey bees have collected, mixed with a little nectar or honey and stored within cells in the hive.

--- What is bee bread used for?
Bee bread is the main source of protein for adult bees and larvae. Young adult bees eat bee bread to make a liquid food similar to mammal’s milk that they feed to growing larvae; they also feed little bits of bee bread to older larvae.

--- How do honey bees use their pollen basket?
When a bee lands on a flower, it nibbles and licks off the pollen, which sticks to its head. It wipes the pollen off its eyes and antennae with a brush on each of its front legs, using them in tandem like windshield wipers. It also cleans the pollen off its mouth part, and as it does this, it mixes it with some saliva and a little nectar or honey that it carries around in a kind of stomach called a crop.
Then the bee uses brushes on its front, middle and hind legs to move the pollen, conveyor-belt style, front to middle to back. As it flies from bloom to bloom, the bee combs the pollen very quickly and moves it into baskets on its hind legs. Each pollen basket, called a corbicula, is a concave section of the hind leg covered by longish hairs that bend over and around the pollen.

---+ Read the entire article on KQED Science:
https://www.kqed.org/science/1....940898/honey-bees-ma

---+ Shoutout!
?Congratulations ?to spqr0a, A D2, James Peirce, Armageddonchampion, and Даниил Мерзликин for identifying what our worker bee was putting in a honeycomb cell (and why) - Bee Bread! See more on our Community Tab: https://www.youtube.com/channe....l/UC-3SbfTPJsL8fJAPK

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Ahegao Comics, Allen, Aurora Mitchell, Beckie, Ben Espey, Bill Cass, Breanna Tarnawsky, Carlos Zepeda, Chris B Emrick, Chris Murphy, Companion Cube, Cooper Caraway, Daisuke Goto, Daniel Weinstein, David Deshpande, Edwin Rivas, Elizabeth Ann Ditz, Elizabeth Wolden, Ivan Alexander, Iver Soto, Jane Orbuch, JanetFromAnotherPlanet, Jason Buberel, Jeanine Womble, Jenn's Bowtique, Jeremy Lambert, Jiayang Li, Joao Ascensao, johanna reis, Johnnyonnyful, Joshua Murallon Robertson, Justin Bull, Karen Reynolds, Kristell Esquivel , KW, Kyle Fisher, Laurel Przybylski, Levi Cai, Lyall Talarico, Mario Rahmani, Marjorie D Miller, Mark Joshua Bernardo, Michael Mieczkowski, Monica Albe, Nathan Padilla, Nathan Wright, Pamela Parker, PM Daeley, Ricardo Martinez, Robert Amling, Robert Warner, Sayantan Dasgupta, Sean Tucker, Shelley Pearson Cranshaw, Shirley Washburn, SueEllen McCann, Tatianna Bartlett, Tea Torvinen, TierZoo, Tommy Tran, Two Box Fish, WhatzGames, Willy Nursalim

---+ 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. #honeybees #bee bread #deeplook

user45
8 vistas · 6 años hace

Conceived in the open sea, tiny spaceship-shaped sea urchin larvae search the vast ocean to find a home. After this incredible odyssey, they undergo one of the most remarkable transformations in nature.

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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. Explore big scientific mysteries by going incredibly small.

* NEW VIDEOS EVERY OTHER TUESDAY! *

Every summer, millions of people head to the coast to soak up the sun and play in the waves. But they aren’t alone. Just beyond the crashing surf, hundreds of millions of tiny sea urchin larvae are also floating around, preparing for one of the most dramatic transformations in the animal kingdom.

Scientists along the Pacific coast are investigating how these microscopic ocean drifters, which look like tiny spaceships, find their way back home to the shoreline, where they attach themselves, grow into spiny creatures and live out a slow-moving life that often exceeds 100 years.“These sorts of studies are absolutely crucial if we want to not only maintain healthy fisheries but indeed a healthy ocean,” says Jason Hodin, a research scientist at the University of Washington’s Friday Harbor Laboratories.

http://staff.washington.edu/hodin/
http://depts.washington.edu/fhl/

Sea urchins reproduce by sending clouds of eggs and sperm into the water. Millions of larvae are formed, but only a handful make it back to the shoreline to grow into adults.


--- What are sea urchins?

Sea urchins are spiny invertebrate animals. Adult sea urchins are globe-shaped and show five-point radial symmetry. They move using a system of tube feet. Sea urchins belong to the phylum Echinodermata along with their relatives the sea stars (starfish), sand dollars and sea slugs.

--- What do sea urchins eat?

Sea urchins eat algae and can reduce kelp forests to barrens if their numbers grow too high. A sea urchin’s mouth, referred to as Aristotle’s lantern, is on the underside and has five sharp teeth. The urchin uses the tube feet to move the food to its mouth.

--- How do sea urchins reproduce?

Male sea urchins release clouds of sperm and females release huge numbers of eggs directly into the ocean water. The gametes meet and the sperm fertilize the eggs. The fertilized eggs grow into free-swimming embryos which themselves develop into larvae called plutei. The plutei swim through the ocean as plankton until they drop to the seafloor and metamorphosize into the globe-shaped adult urchins.


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

https://ww2.kqed.org/science/2....016/08/23/sea-urchin

---+ For more information:

Marine Larvae Video Resource
http://marinedevelopmentresource.stanford.edu/

---+ More Great Deep Look episodes:

From Drifter to Dynamo: The Story of Plankton | Deep Look
https://www.youtube.com/watch?v=jUvJ5ANH86I

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

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

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

It's Okay To Be Smart: Can Coral Reefs Survive Climate Change?
https://www.youtube.com/watch?v=P7ydNafXxJI

Gross Science: White Sand Beaches Are Made of Fish Poop
https://www.youtube.com/watch?v=1SfxgY1dIM4


---+ Follow KQED Science:

KQED Science: http://www.kqed.org/science
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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 #seaurchin #urchins

user45
8 vistas · 6 años hace

Peregrine falcons catch other birds mid-flight by diving at more than 200 mph. To do it, they need some high-precision gear: special eyesight, talons and aerodynamics that can't be beat.

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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. Explore big scientific mysteries by going incredibly small.

---

While known for being the world’s fastest bird–peregrines have been clocked at diving more than 200 miles per hour–these majestic birds were at risk for going extinct 50 years ago. Widespread use of pesticides such as DDT decimated native populations of peregrine falcons.

By 1970, California’s peregrine population had dwindled to only two known nesting pairs statewide. The federal government banned DDT in 1972. And successful restoration efforts spearheaded by organizations like The Peregrine Fund helped revive their numbers. By 1999, they were removed from the federal Endangered Species List. Recent surveys estimate that there are now 300 to 350 nesting pairs in California and more than 2400 pairs nationwide.

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

https://www.kqed.org/science/1....944037/peregrine-fal

--- What’s the origin of the Peregrine Falcon's name?
Peregrine is Latin for "Peregrinus," which means “traveler” or “pilgrim.”

--- How many eyelids do raptors, or birds or prey, like peregrine falcons have?

They have three! Two eyelids are used for closing their eyes, while the third is used for blinking. It’s also called the nictitating membrane and helps to protect their eyes and keep them moist and clean. It’s semi-transparent, so they can actually still see through it when it’s closed.

--- Did you know they have a special bone to protect their eyes?

It’s called a sclerotic ring and helps support and secure their eyeballs within their skulls.

---+ For more information:
Visit The Peregrine Fund
https://www.peregrinefund.org/

---+ More Great Deep Look episodes:

Things With Wings: https://youtu.be/a68fIQzaDBY

---+ Shoutout!

---+ ?Congratulations ?to the following fans for coming up with the best emoji or ASCII tributes to this fine feathered bird in our community tab challenge:

Sandcastle •
ɐɯɹɐʞ ɐıuɐɯ
lieutenant giwaffe
Sectumsempra, b****!
Sweetle pie.3.

Go look at all the entries here!

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

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

Allen, Aurora Mitchell, Beckie, Ben Espey, Bill Cass, Breanna Tarnawsky, Carl, Chris B Emrick, Chris Murphy, Cindy McGill, Companion Cube, Cory, Daisuke Goto, Daisy Trevino , Daniel Voisine, Daniel Weinstein, David Deshpande, Dean Skoglund, Edwin Rivas, Elizabeth Ann Ditz, Geidi Rodriguez, Gerardo Alfaro, Ivan Alexander, Jane Orbuch, JanetFromAnotherPlanet, Jason Buberel, Jeanne Sommer, Joao Ascensao, johanna reis, Johnnyonnyful, Joshua Murallon Robertson, Justin Bull, Kallie Moore, Karen Reynolds, Katherine Schick, Kendall Rasmussen, Kenia Villegas, Kristell Esquivel, KW, Kyle Fisher, Laurel Przybylski, Leonhardt Wille, Levi Cai, Louis O'Neill, Michael Mieczkowski, Michele Wong, monoirre, Nathan Padilla, Nathan Wright, Nicolette Ray, NoahCXXIII, Pamela Parker, PM Daeley, Ricardo Martinez, riceeater, Richard Shalumov, Rick Wong, Robert Amling, Robert Warner, Sayantan Dasgupta, Shelley Pearson Cranshaw, Shirley Washburn, Sonia Tanlimco, SueEllen McCann, Supernovabetty, Tea Torvinen, TierZoo, Titania Juang, Two Box Fish, WhatzGames, Willy Nursalim


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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 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.

#peregrinefalcon #bird #deeplook

user45
8 vistas · 6 años hace

Dragonflies might rule the skies, but their babies grow up underwater in a larva-eat-larva world. Luckily for them, they have a killer lip that snatches prey, Alien-style, at lightning speed.

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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.

* NEW VIDEOS EVERY OTHER TUESDAY! *

If adult dragonflies are known to be precise hunters, capable of turning on a dime and using their almost-360-degree vision to nab mosquitoes and flies in midair, their dragon-looking babies are even more fearsome.

Dragonflies and damselflies lay their eggs in water. After they hatch, their larvae, also known as nymphs, spend months or years underwater growing wings on their backs.

Without those versatile four wings that adults use to chase down prey, nymphs rely on a mouthpart they shoot out. It’s like a long, hinged arm that they keep folded under their head and it’s eerily similar to the snapping tongue-like protuberance the alien shoots out at Ripley in the sci-fi movie Aliens.

A nymph’s eyesight is almost as precise as an adult dragonfly’s and when they spot something they want to eat, they extrude this mouthpart, called a labium, to engulf, grab, or impale their next meal and draw it back to their mouth. Only dragonfly and damselfly nymphs have this special mouthpart.

“It’s like a built-in spear gun,” said Kathy Biggs, the author of guides to the dragonflies of California and the greater Southwest.

With their labium, nymphs can catch mosquito larvae, worms and even small fish and tadpoles.

“It’s obviously an adaptation to be a predator underwater, where it’s not easy to trap things,” said Dennis Paulson, a dragonfly biologist retired from the University of Puget Sound.

Also known among biologists as a “killer lip,” the labium comes in two versions. There’s the spork-shaped labium that scoops up prey, and a flat one with a pair of pincers on the end that can grab or impale aquatic insects.

-- How many years have dragonflies been around?

Dragonflies have been around for 320 million years, said Ed Jarzembowski, who studies fossil dragonflies at the Nanjing Institute of Geology and Paleontology. That means they were here before the dinosaurs.

-- How big did dragonflies used to be?

Prehistoric dragonflies had a wingspan of 0.7 meters (almost 28 inches). That’s the wingspan of a small hawk today.

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

https://ww2.kqed.org/science/2....017/09/12/a-baby-dra

---+ For more information:

This web site, run by Kathy and David Biggs, has photos and descriptions of California dragonflies and damselflies and information on building a pond to attract the insects to your backyard: http://bigsnest.members.sonic.net/Pond/dragons/

The book "A Dazzle of Dragonflies," by Forrest Mitchell and James Lasswell, has good information on dragonfly nymphs.

---+ More great Deep Look episodes:

Why Is The Very Hungry Caterpillar So Dang Hungry?
https://www.youtube.com/watch?v=el_lPd2oFV4

This Mushroom Starts Killing You Before You Even Realize It
https://www.youtube.com/watch?v=bl9aCH2QaQY&t=57s

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

This Is Why Water Striders Make Terrible Lifeguards
https://www.youtube.com/watch?v=E2unnSK7WTE

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

PBS Eons: The Biggest Thing That Ever Flew
https://www.youtube.com/watch?v=scAp-fncp64

PBS Infinite Series: A Breakthrough in Higher Dimensional Spheres
https://www.youtube.com/watch?v=ciM6wigZK0w

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---+ About KQED

KQED, an NPR and PBS affiliate based in San Francisco, serves the people of Northern California and beyond with a public-supported alternative to commercial media. Home to one of the most listened-to public radio stations in the nation, one of the highest-rated public television services and an award-winning education program, KQED is also a leader and innovator in interactive media and technology, taking people of all ages on journeys of exploration – exposing them to new people, places and ideas.

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 #dragonflies #dragonflynymph

user45
8 vistas · 6 años hace

There's a chemical arms race going on in the Sonoran Desert between a highly venomous scorpion and a particularly ferocious mouse. The outcome of their battle may one day change the way doctors treat pain in people.

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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.

Commonly found in the Sonoran Desert, the Arizona bark scorpion (Centruroides sculpturatus) is the most dangerous scorpion in the continental United States. According to Keith Boesen, Director of the Arizona Poison & Drug Information Center, about 15,000 Americans report being stung by scorpions every year in the U.S. The worst stings, about 200 annually, are attributed to this one species. Its sting can cause sharp pain along with tingling, swelling, numbness, dizziness, shortness of breath, muscular convulsions, involuntary eye movements, coughing and vomiting. Children under two years old are especially vulnerable. Since 2000, three human deaths have been attributed to the Arizona bark scorpion in the United States, all within Arizona.

But there is one unlikely creature that appears unimpressed. While it may not look the part, the Southern grasshopper mouse (Onychomys torridus) is an extremely capable hunter. It fearlessly stalks and devours any beetles or grasshoppers that have the misfortune to cross its path. But this mouse has a particular taste for scorpions.

The scorpion venom contains neurotoxins that target sodium and potassium ion channels, proteins embedded within the surface of the nerve and muscle cells that play an important role in regulating the sensation of pain. Activating these channels sends signals down the nerves to the brain. That’s what causes the excruciating pain that human victims have described as the feeling like getting jabbed with a hot needle. Others compare the pain to an electric shock. But the grasshopper mouse has an entirely different reaction when stung.

Within the mouse, a special protein in one of the sodium ion channels binds to the scorpion’s neurotoxin. Once bound, the neurotoxin is unable to activate the sodium ion channel and send the pain signal. Instead it has the entirely opposite effect. It shuts down the channel, keeping it from sending any signals, which has a numbing effect for the mouse.


--- How many species of scorpion are there?

There are almost 2,000 scorpion species, but only 30 or 40 have strong enough poison to kill a person.

--- Are scorpions insects?

Scorpions are members of the class Arachnida and are closely related to spiders, mites, and ticks.

--- Where do Arizona bark scorpions live?

Commonly found in the Sonoran Desert, the Arizona bark scorpion (Centruroides sculpturatus) is the most dangerous scorpion in the continental United States. The Arizona bark scorpion’s preference for hanging to the underside of objects makes dangerous encounters with humans more likely.


Read the entire article on KQED Science:

http://ww2.kqed.org/science/20....16/03/08/stinging-sc

For more information:

Michigan State University Venom Evolution: http://venomevolution.zoology.msu.edu/
Institute for Biodiversity Science and Sustainability at the California Academy of Sciences: http://www.calacademy.org/scientists


More great Deep Look episodes:
What Happens When You Zap Coral With The World's Most Powerful X-ray Laser?
https://youtu.be/aXmCU6IYnsA

These 'Resurrection Plants' Spring Back to Life in Seconds
https://youtu.be/eoFGKlZMo2g


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

It's Okay to Be Smart: Your Salad Is Trying To Kill You
https://youtu.be/8Ofgj2KDbfk

It's Okay to Be Smart: The Oldest Living Things In The World
https://youtu.be/jgspUYDwnzQ


For more content from KQED Science:
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

user45
8 vistas · 6 años hace

The archerfish hunts by spitting water at terrestrial targets with weapon-like precision, and can even tell human faces apart. Is this fish smarter than it looks?

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! *

Humans always have assumed we’ve cornered the market on intelligence. But because of archerfish and other bright lights in the animal kingdom, that idea is itself evolving.

Archerfish normally make their living in the mangrove forests of Southeast Asia and Australia, where they spit water at ants, beetles and other insects living on the trees’ half-submerged roots. The fish’s high-pressure projectiles knock prey from their perches into the water, and the fish swoops in.

This novel feeding behavior, restricted to only seven species of fish, has attracted the attention of researchers ever since it was first described in 1764.

The jet’s tip and tail unite at the moment of impact, which is critical to the success of the attack, especially as the target distance approaches the limit of the fish’s maximum spitting range of about six feet. The fish accomplishes this feat of timing through deliberate control of its highly-evolved mouthparts, in particular its lips, which act like an adjustable hose that can expand and contract while releasing the water.

So in a way, to hit a target that’s further away, the fish doesn’t spit harder. It spits smarter. But just how smart is an archerfish?

Using the archerfish’s spitting habits as a starting point, one researcher trained some lab fish to spit at an image of one human face with food rewards. Then, on a monitor suspended over the fish tank, she showed them a series of other faces, in pairs, adding in the familiar one.

When the trained fish saw that familiar face, they would spit, to a high degree of accuracy. In a sense, the fish “recognized” the face, which should have been beyond the capacity of its primitive brain.

--- Where do archerfish live?

In Thailand, Australia, and other parts of Southeast Asia, usually in mangrove forests.

--- What do archerfish eat?

Insects and spiders that live close to the waterline. Archerfish won’t eat anything once it’s sinks too far below the surface.

--- How do archerfish spit?

They squeeze water through their mouth opening, using specially evolved mouthparts.

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

https://ww2.kqed.org/science/2....017/01/31/archerfish

---+ For more information:

Visit the California Academy of Sciences: http://www.calacademy.org/

---+ More Great Deep Look episodes:

Sea Urchins Pull Themselves Inside Out to be Reborn
https://www.youtube.com/watch?v=ak2xqH5h0YY

Sticky. Stretchy. Waterproof. The Amazing Underwater Tape of the Caddisfly
https://www.youtube.com/watch?v=Z3BHrzDHoYo

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

Gross Science: Sea Cucumbers Have Multipurpose Butts
https://www.youtube.com/watch?v=xjnvRKDdaWY

Physics Girl: DIY Lightning Experiment! Make a SHOCKING Capacitor
https://www.youtube.com/watch?v=rG7N_Zv6_gQ


---+ 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

user45
8 vistas · 6 años hace

Kangaroo rats use their exceptional hearing and powerful hind legs to jump clear of rattlesnakes — or even deliver a stunning kick in the face.

Please join our community on Patreon! https://www.patreon.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.

---

As they forage, kangaroo rats need to continually scan the surrounding sandy environment for any predators – foxes, owls, and snakes – that could be anywhere. Once a well-camouflaged sidewinder rattlesnake strikes, aiming its venomous fangs at the furry seed-harvester, the kangaroo rat springs up, and away from the snake’s deadly bite, kicking its powerful hind legs at the snake’s face, and using its long tail to twist itself in mid-air away from the snake to safety.

Kangaroo have the uncanny ability to jump high at just the right moment. Biologists believe that this most likely comes from its keen hearing, which is 90 times more sensitive than human ears, allowing the rats to react in as little as 50 milliseconds.

In addition to their finely-tuned ears, the desert kangaroo rats’ highly-evolved musculature generates lots of force very quickly, resulting in jumps almost ten times their body height.

Muscles in kangaroo rats have a thick tendon, surrounded by large muscles, which translates directly to more power and a faster reaction time. With its powerful hind limbs, the kangaroo rat is also able to deliver a “black belt” kick to the jaw of the rattlesnake, sending the rattlesnake soaring to the ground, before landing away from the snake.

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

https://www.kqed.org/science/1....957226/kangaroo-rats

--- Can a kangaroo rat survive without water in the desert?

The body of the kangaroo rat has evolved to be especially adapted to their harsh dry desert environments, so they are able to get all of their water from seeds they eat.

--- How high can a kangaroo rat jump?

Some kangaroo rats are able to jump as high as 9 feet, or approximately 10 times their body height.

--- Are kangaroo rats endangered?

There are 20 existing species of kangaroo rats. Six of these species are considered threatened. The two species featured in our episode, the Merriam’s kangaroo rat (Dipodomys merriami) and desert kangaroo rat (Dipodomys deserti) are not endangered, and relatively common in the desert areas they are found.

---+ For more amazing slow motion videos of kangaroo rats and rattlesnakes, visit our friends at: https://www.ninjarat.org/

---+ Shoutout!

?Congratulations ?to these fans on our YouTube community tab who identified the special parts in a kangaroo rats' skull that make their hearing so exceptional... the tympanic or auditory bullae:

Lights, Camera, Ants
Rohit Kumar Reddy Reddy
Eric Fung
Hotaru
otakuman706

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

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---+ Follow KQED Science and Deep Look:

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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, the largest science and environment reporting unit in California. KQED Science is supported by The National Science Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, Campaign 21 and the members of KQED.

#kangaroorat #rattlesnake #deeplook

user45
8 vistas · 6 años hace

When predators attack, daddy longlegs deliberately release their limbs to escape. They can drop up to three and still get by just fine.

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.

We all know it’s not nice to pull the legs off of bugs.

Daddy longlegs don’t wait for that to happen. These arachnids, related to spiders, drop them deliberately. A gentle pinch is enough to trigger an internal system that discharges the leg. Whether it hurts is up for debate, but most scientists think not, given the automatic nature of the defense mechanism.

It’s called autotomy, the voluntary release of a body part.

Two of their appendages have evolved into feelers, which leaves the other six legs for locomotion. Daddy longlegs share this trait with insects, and have what scientists call the “alternate tripod gate,” where three legs touch the ground at any given point.

That elegant stride is initially hard-hit by the loss of a leg. In the daddy longlegs’ case, the lost leg doesn’t grow back.

But they persevere: A daddy longlegs that is one, two, or even three legs short can recover a surprising degree of mobility by learning to walk differently. And given time, the daddy longlegs can regain much of its initial mobility on fewer legs.

Once these adaptations are better understood, they may have applications in the fields of robotics and prosthetic design.

--- Are daddy longlegs a type of spider?

No, though they are arachnids, as spiders are. Daddy longlegs are more closely related to scorpions.

--- How can I tell a daddy longlegs from a spider?

Daddy longlegs have one body segment (like a pea), while spiders have two (like a peanut). Also, you won’t find a daddy longlegs in a web, since they don’t make silk.

--- Can a daddy longlegs bite can kill you?

Daddy longlegs are not venomous. And despite what you’ve heard about their mouths being too small, they could bite you, but they prefer fruit.

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

https://ww2.kqed.org/science/2....017/08/22/daddy-long

---+ For more information:

Visit the Elias Lab at UC Berkeley:
https://nature.berkeley.edu/eliaslab/

---+ More Great Deep Look episodes:

Stinging Scorpion vs. Pain-Defying Mouse | Deep Look
https://www.youtube.com/watch?v=w-K_YtWqMro

For These Tiny Spiders, It's Sing or Get Served | Deep Look
https://www.youtube.com/watch?v=y7qMqAgCqME

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

Gross Science: What Happens When You Get Rabies?
https://www.youtube.com/watch?v=eiUUpF1UPJc

Physics Girl: Mantis Shrimp Punch at 40,000 fps! - Cavitation Physics
https://www.youtube.com/watch?v=m78_sOEadC8

---+ 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 based in San Francisco, serves the people of Northern California and beyond with a public-supported alternative to commercial media. Home to one of the most listened-to public radio station in the nation, one of the highest-rated public television services and an award-winning education program, KQED is also a leader and innovator in interactive media and technology, taking people of all ages on journeys of exploration — exposing them to new people, places and ideas.

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 #daddylonglegs #harvestman

user37
8 vistas · 6 años hace

Visit me on FB: https://www.facebook.com/LeonardoPereznieto
Follow Fine Art Tips on Google+: http://goo.gl/TqsmiJ
My website: http://www.ArtistLeonardo.com/

Do you want to help me translating it into your language?
(Note: First check if it hasn´t been translated already by pressing the "CC" button on the lower part of the video).
All you need to do is to please translate the file at the link below and send it to me:
https://drive.google.com/file/....d/0B0UOw8r7hWG2RUNUS

Visit: http://www.fineartebooks.com/ for free drawing tutorials.

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@artistleonardo.com (Business only, not for personal messages.)

List of materials:

Mechanical pencil with 0.7mm, B lead
MagicRub Faber-Castell eraser
Light blue cardboard paper
Primo Bianco Charcoal 59-W (white pastel)
Prismacolor Premier color pencils

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/Entries/2012/8/1_My_materials.html

You may also follow me on:

My Blog: http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/My_Blog.html

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My Google+ page as an artist (with my sculptures, paintings, etc): http://goo.gl/n7p96D

My Instagram: http://instagram.com/artistleonardo

My LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

My Vine: https://vine.co/v/hKnn3rbwJmT

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My VK: http://vk.com/leonardopereznieto

My website Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

I wish you great creations!

Audio file(s) provided by http://www.audiomicro.com

This tutorial shows how to draw a dolphin with color pencils
Wie malt man einen Delfin unter Wasser mit Buntstiften
Как нарисовать дельфина цветными карандашами
Comment dessiner un dauphin avec des crayons de couleur
Cum să desenezi un delfin cu creioane colorate

user37
8 vistas · 6 años hace

Visit me on FB: https://www.facebook.com/LeonardoPereznieto

Follow Fine Art Tips on Google+ https://plus.google.com/u/0/b/....10270478833891898661

Do you want to help me translating it into your language?
(Note: First check if it hasn´t been translated already by pressing the "CC" button on the lower part of the video).

All you need to do is to please translate the file at the link below and send it to me:
https://docs.google.com/file/d..../0B0UOw8r7hWG2WHZPbF

Visit: http://www.fineartebooks.com/ for free drawing tutorials.

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@leopereznieto.com (Business only, not for personal messages.)


Today we are going to set the engine on with a video about how to draw a Ferrari automobile. You’ll learn to do the general shape of the car with loose strokes and then we will refine the figure detail by detail. ¡This an amazingly fast drawing!


List of materials:

Mechanical pencils 0.5mm - See it here: http://amzn.to/2ktcqlL
Leads 0.5mm H: http://amzn.to/2kthZAD
Leads 0.5mm B: http://amzn.to/2ktoK5M
Black pencil Prismacolor Premier - See it here: http://amzn.to/2kteACc
Kneaded eraser Prismacolor - See it here: http://amzn.to/2cvi6G7
MagicRub eraser - See it here: http://amzn.to/2jWdLic
Fabriano white drawing paper, fine grain - See it here: http://amzn.to/2krS9xp


If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/Entries/2012/8/1_My_materials.html

You may also follow me on:

My Blog: http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/My_Blog.html

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LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

Google+: https://plus.google.com/u/0/10....0373866809472929876/

VK: http://vk.com/leonardopereznieto

Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

Audio file(s) provided by http://www.audiomicro.com


Как Нарисовать Ferrari - Как Нарисовать Машину
Як Намалювати Ferrari - Як намалювати автомобіль
Wie man einen Ferrari zeichnet - Wie man ein Auto zeichnet
Comment dessiner une Ferrari - Comment dessiner une voiture

user37
8 vistas · 6 años hace

Visit me on FB: https://www.facebook.com/LeonardoPereznieto
Visit my website: http://www.artistleonardo.com/

Do you want to help me translating it into your language?
All you need to do is translate the file at the link below and send it to me:
https://docs.google.com/open?i....d=0B0UOw8r7hWG2LW5qd

Please send it to me as a Youtube personal message using this link: http://www.youtube.com/inbox?to_user_ext_ids=aapxaQKJFJ6XC56CHgeTzw&action_compose=1
Visit: http://www.fineartebooks.com/ for free drawing tutorials.

Visit: http://www.fineartebooks.com/ for free drawing tutorials.

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, please write to: info@leonardopereznieto.com

List of materials:

Lead holder with an HB lead
Kneaded eraser
Stick eraser
Red otter round brushes, numbers 000, 1, 6, 12
Flat 1/2 watercolor brush
Schminke watercolor set
Fabriano watercolor paper
Masking tape
Tissue paper
Exacto knife

You may also follow me on:

My Blog: http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/My_Blog.html

Twitter: https://twitter.com/#!/ArtistLeonardo

LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

Google+: https://plus.google.com/u/0/10....0373866809472929876/

VK: http://vk.com/leonardopereznieto

Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

This tutorial shows How to Make an Original Xmas Card and how to Paint an Owl with Watercolor
Come creare un'originale cartolina - come dipingere un gufo
comme un hibou dans la peinture aquarelle, carte de Noël original
как сова в акварельной живописи, оригинальные рождественские открытки
як сова в акварельного живопису, оригінальні різдвяні листівки
como uma coruja em pintura em aquarela, cartão de Natal original
jak sowa w akwareli, oryginalne kartki świąteczne
Comment faire une carte originale, Comment peindre une chouette

user37
8 vistas · 6 años hace

Visit me on FB: https://www.facebook.com/LeonardoPereznieto
Follow Fine Art Tips on Google+: http://goo.gl/TqsmiJ
My website: http://www.ArtistLeonardo.com/

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@artistleonardo.com (Business only, not for personal messages.)

List of materials:

Mechanical pencil with 0.7mm, B lead
Mechanical pencil with 0.3mm, 2H lead
Kneaded eraser Prismacolor
MagicRub FaberCastell eraser
Fabriano white drawing paper, fine grain

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://www.fineartebooks.com/h....owtodraw_drawingscho

You may also follow me on:

My Blog: http://www.fineartebooks.com/h....owtodraw_drawingscho

My Twitter: https://twitter.com/#!/ArtistLeonardo

Fine Art Tips on Google+: http://goo.gl/TqsmiJ

My Google+ page as an artist (with my sculptures, paintings, etc): http://goo.gl/n7p96D

My Instagram: http://instagram.com/artistleonardo

My LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

My Vine: https://vine.co/v/hKnn3rbwJmT

My Pinterest: http://pinterest.com/ArtistLeonardo/

My VK: http://vk.com/leonardopereznieto

My website Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

I wish you great creations!

Audio file(s) provided by http://www.audiomicro.com

This tutorial shows how to draw

user37
8 vistas · 6 años hace

Visit me on FB: https://www.facebook.com/LeonardoPereznieto
Follow Fine Art Tips on Google+: http://goo.gl/TqsmiJ
Visit my website: http://www.artistleonardo.com/

List of materials :

JetPens.com: http://bit.ly/1fnTjkZ

Tools Used:
Pilot Pocket Brush Pen: http://bit.ly/1ayZJdb
Uni Double Sided Pocket Brush Pen: http://bit.ly/1ayZSNT
Kuretake Fudegokochi Brush Pen: http://bit.ly/1e4SCcz
Tombow Fudenosuke Brush Pen - Twin Tip: http://bit.ly/1e4SFF9
Akashiya Sai Watercolor Brush Pen - Sky Blue: http://bit.ly/IiMItd

Do you want to help me translating it into your language?
(Note: First check if it hasn´t been translated already by pressing the "CC" button on the lower part of the video).
All you need to do is to please translate the file at the link below and send it to me:
https://drive.google.com/file/....d/0B0UOw8r7hWG2cGZCY

Visit: http://www.fineartebooks.com/ for free drawing tutorials.

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@leopereznieto.com (Business only, not for personal messages.)

http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/Entries/2012/8/1_My_materials.html

You may also follow me on:

My Blog: http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/My_Blog.html

My Twitter: https://twitter.com/#!/ArtistLeonardo

Fine Art Tips on Google+: http://goo.gl/TqsmiJ

My Google+ page as an artist (with my sculptures, paintings, etc): http://goo.gl/n7p96D

My Instagram: http://instagram.com/artistleonardo

My LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

My Vine: https://vine.co/v/hKnn3rbwJmT

My Pinterest: http://pinterest.com/ArtistLeonardo/

My VK: http://vk.com/leonardopereznieto

My website Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

I wish you great creations!

Audio file(s) provided by http://www.audiomicro.com

This tutorial shows How to Draw a Tree With Brush Pens - An Oak Tree
Как рисовать дерево
Як Намалювати Дерево

user37
8 vistas · 6 años hace

Visit my website: http://www.artistleonardo.com/

Visit: http://www.fineartebooks.com/ for free drawing tutorials.

Visit my FBGallery: https://www.facebook.com/LeonardoPereznieto

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, please write to: info@leonardopereznieto.com


With this video you’ll learn how to draw a realistic rose with graphite pencils. I’ll teach you to draw shadows and show you to blear in order to create texture over the petals. Also, I will give you some tips to embellish your drawing with little droplets


List of materials:

Black lead holder: H lead
Red lead holder: 2B lead
Kneaded eraser
Pencil eraser (Magic Rub)
Soft, synthetic brush
White drawing paper, fine grain


You may also follow me on:

My Blog: http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/Entries/2012/7/26_Day_of_longboarding.html

Twitter: https://twitter.com/#!/ArtistLeonardo

LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

Google+: https://plus.google.com/u/0/10....0373866809472929876/

VK: http://vk.com/leonardopereznieto

Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

The link for the water drop tutorial is this: http://www.youtube.com/watch?v=82e3Osa83_w

user37
8 vistas · 6 años hace

Visit me on FB: https://www.facebook.com/LeonardoPereznieto
Follow Fine Art Tips on Google+: http://goo.gl/TqsmiJ
My website: http://www.ArtistLeonardo.com/

Do you want to help me translating it into your language?
You can do so at the following link:
http://www.youtube.com/timedte....xt_video?v=aBpl6ZmYQ

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@artistleonardo.com (Business only, not for personal messages.)

List of materials:

Mechanical pencil with 0.7mm, B lead
Light blue cardboard paper
Color pencils: Prismacolor Premier
Kneaded eraser Prismacolor
MagicRub FaberCastell eraser

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://www.fineartebooks.com/h....owtodraw_drawingscho

You may also follow me on:

My Blog: http://www.fineartebooks.com/h....owtodraw_drawingscho

My Twitter: https://twitter.com/#!/ArtistLeonardo

Fine Art Tips on Google+: http://goo.gl/TqsmiJ

My Google+ page as an artist (with my sculptures, paintings, etc): http://goo.gl/n7p96D

My Instagram: http://instagram.com/artistleonardo

My LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

My Vine: https://vine.co/v/hKnn3rbwJmT

My Pinterest: http://pinterest.com/ArtistLeonardo/

My VK: http://vk.com/leonardopereznieto

My website Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

I wish you great creations!

Audio file(s) provided by http://www.audiomicro.com

This tutorial shows How to Draw a Peacock With Color Pencils - Drawing Feathers and Birds

user37
8 vistas · 6 años hace

Visit me on FB: https://www.facebook.com/LeonardoPereznieto
Follow Fine Art Tips on Google+: http://goo.gl/TqsmiJ
My website: http://www.ArtistLeonardo.com/

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@artistleonardo.com (Business only, not for personal messages.)

List of materials:

Mechanical pencil with 0.7mm, B lead
Light grey cardboard paper
White pastel: Primo Bianco Charcoal 59-W
Color pencils: Prismacolor Premier
Kneaded eraser Prismacolor
MagicRub FaberCastell eraser

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://www.fineartebooks.com/h....owtodraw_drawingscho

You may also follow me on:

My Blog: http://www.fineartebooks.com/h....owtodraw_drawingscho

My Twitter: https://twitter.com/#!/ArtistLeonardo

Fine Art Tips on Google+: http://goo.gl/TqsmiJ

My Google+ page as an artist (with my sculptures, paintings, etc): http://goo.gl/n7p96D

My Instagram: http://instagram.com/artistleonardo

My LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

My Vine: https://vine.co/v/hKnn3rbwJmT

My Pinterest: http://pinterest.com/ArtistLeonardo/

My VK: http://vk.com/leonardopereznieto

My website Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

I wish you great creations!

Audio file(s) provided by http://www.audiomicro.com

This tutorial shows How to Draw a Crystal Pendant, Swarovski Style - With Color Pencils

user37
8 vistas · 6 años hace

My drawing book: http://amzn.to/1K7L8Ed
Visit me on FB: https://www.facebook.com/LeonardoPereznieto
My website: http://www.ArtistLeonardo.com/
O Art Int: http://oartinternational.com/

Do you want to help me translating it into your language?
(Note: First check if it hasn´t been translated already by pressing the "CC" button on the lower part of the video).
All you need to do is to please go to the following link and translate. Thank you!:


If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@artistleonardo.com (Business only, not for personal messages.)

List of materials:

Mechanical pencil: ArtistLeonardo Tutto3, with 0.3mm 2H lead, 0.5 HB and 0.7 mm 2B lead
Kneaded eraser Prismacolor
Fine Line Marker Prismacolor .05mm
Schmincke watercolor set
Fabriano white watercolor paper, fine grain
Tintoretto watercolor brushes round n.2, n.4, n.6 and a flat 3/4 inch brush.

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://fineart-tips.blogspot.m....x/2015/07/my-drawing


Download Fine Art-Tips mobile app:

On the Apple Store:

For iPhone/iPad free: https://itunes.apple.com/us/ap....p/fine-art-tips-draw

For iPhone/iPad, Premium: https://itunes.apple.com/us/ap....p/fine-art-tips-prem

On Google Play:

For Android free: https://play.google.com/store/apps/details?id=allmax.fine.art.tips.free2&hl=en

For Android, Premium: https://play.google.com/store/apps/details?id=allmax.fine.art.tips2&hl=en

You may also follow me on:

My Blog: http://fineart-tips.blogspot.mx/

My Twitter: https://twitter.com/#!/ArtistLeonardo

Fine Art Tips on Google+: http://goo.gl/TqsmiJ

My Google+ page as an artist (with my sculptures, paintings, etc): https://plus.google.com/+Artistleonardo/posts

My Instagram: http://instagram.com/artistleonardo

My LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

My Vine: https://vine.co/v/hKnn3rbwJmT

My Pinterest: http://pinterest.com/ArtistLeonardo/

My VK: http://vk.com/leonardopereznieto

My website Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

I wish you great creations!

Audio file(s) provided by http://www.audiomicro.com

This tutorial shows How to Paint a Budgerigar in Watercolor

user37
8 vistas · 6 años hace

See the Tutto3: https://igg.me/at/tutto3

My drawing book: http://amzn.to/1K7L8Ed
Visit me on FB: https://www.facebook.com/LeonardoPereznieto
My website: http://www.ArtistLeonardo.com/

Do you want to help me translating it into your language?
(Note: First check if it hasn´t been translated already by pressing the "CC" button on the lower part of the video).
All you need to do is to please go to the following link and translate. Thank you!:
http://www.youtube.com/timedtext_video?ref=share&v=kUYwg9VBN9A

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@artistleonardo.com (Business only, not for personal messages.)

List of materials:

Mechanical pencil: ArtistLeonardo Tutto3, with 0.3mm 2H lead, 0.5 HB and 0.7 mm B lead.
Kneaded eraser Prismacolor
Fabriano white drawing paper, fine grain

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://fineart-tips.blogspot.m....x/2015/07/my-drawing


Download Fine Art-Tips mobile app:

On the Apple Store:

For iPhone/iPad free: https://itunes.apple.com/us/ap....p/fine-art-tips-draw

For iPhone/iPad, Premium: https://itunes.apple.com/us/ap....p/fine-art-tips-prem

On Google Play:

For Android free: https://play.google.com/store/apps/details?id=allmax.fine.art.tips.free2&hl=en

For Android, Premium: https://play.google.com/store/apps/details?id=allmax.fine.art.tips2&hl=en

You may also follow me on:

My Blog: http://fineart-tips.blogspot.mx/

My Twitter: https://twitter.com/#!/ArtistLeonardo

Fine Art Tips on Google+: http://goo.gl/TqsmiJ

My Google+ page as an artist (with my sculptures, paintings, etc): https://plus.google.com/+Artistleonardo/posts

My Instagram: http://instagram.com/artistleonardo

My LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

My Vine: https://vine.co/v/hKnn3rbwJmT

My Pinterest: http://pinterest.com/ArtistLeonardo/

My VK: http://vk.com/leonardopereznieto

My website Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

I wish you great creations!

Audio file(s) provided by http://www.audiomicro.com

This tutorial shows How to Draw a Killer Whale - Orca




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