Top Vídeos
We've collected the most precious moments from our beloved canine companions: from cute puppies opening their eyes for the first time, to loyal wild dogs and incredibly intelligent pets.
Subscribe: http://bit.ly/BBCEarthSub
Watch more:
Planet Earth http://bit.ly/PlanetEarthPlaylist
Blue Planet http://bit.ly/BluePlanetPlaylist
Planet Earth II http://bit.ly/PlanetEarthIIPlaylist
Planet Dinosaur http://bit.ly/PlanetDinoPlaylist
Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of entertaining and thought-provoking natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this.
Want to share your views with the team? Join our BBC Studios Voice: https://www.bbcstudiosvoice.com/register
This is a page from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-fe....edback--contact-deta
Get up close to the incredible rescue animals at the Cat Survival Trust, UK. The Trust saves animals from across Europe and educates students and the public on the importance of wildlife.
Subscribe: http://bit.ly/BBCEarthSub
Watch more:
Planet Earth http://bit.ly/PlanetEarthPlaylist
Blue Planet http://bit.ly/BluePlanetPlaylist
Planet Earth II http://bit.ly/PlanetEarthIIPlaylist
Planet Dinosaur http://bit.ly/PlanetDinoPlaylist
VR 180
Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of entertaining and thought-provoking natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this.
Want to share your views with the team? Join our BBC Studios Voice: https://www.bbcstudiosvoice.com/register
This is a page from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-fe....edback--contact-deta
When neighbouring chimpanzees break into his territory, alpha male Nick needs to rally his own community to defend it.
Subscribe to BBC Earth for more amazing animal videos - http://bit.ly/BBCEarthSub
Watch more:
Planet Earth http://bit.ly/PlanetEarthPlaylist
Blue Planet http://bit.ly/BluePlanetPlaylist
Planet Earth II http://bit.ly/PlanetEarthIIPlaylist
Planet Dinosaur http://bit.ly/PlanetDinoPlaylist
The Secret Life Of Primates: Chimps
Zoologist Charlotte Uhlenbroek travels to jungles and mountains to infiltrate some of the greatest wild primate groups, getting closer to them than anyone before. She unravels the complex social dynamics of gorillas, orang-utans, chimpanzees and baboons to bring viewers every detail of these magnificent animals' existence.
Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder.
Want to share your views with the team behind BBC Earth and win prizes? Join our fan panel here: http://tinyurl.com/YouTube-BBCEarth-FanPanel
This is a channel from BBC Studios who help fund new BBC programmes
Service information and feedback: http://bbcworldwide.com/vod-fe....edback--contact-deta
Coming across a rare pool of water, the elephant heard knows that its stagnant. Luckily, they know a trick which will still allow them to take a well needed drink.
Subscribe to BBC Earth: http://bit.ly/BBCEarthSubBBC Earth YouTube Channel: http://www.youtube.com/BBCEarth
BBC Earth Facebook http://www.facebook.com/bbcearth (ex-UK only)
BBC Earth Twitter http://www.twitter.com/bbcearth
Visit http://www.bbc.com/earth/world for all the latest animal news and wildlife videos
This is a channel from BBC Studios who help fund new BBC programmes.
From deserts to grasslands, lions are some of the most majestic predators the wild has ever seen. Join us as we recount some of the best moments from these captivating big cats.
Subscribe: http://bit.ly/BBCEarthSub
#BestOfLions #DavidAttenborough #BBCEarth
Watch more:
Planet Earth http://bit.ly/PlanetEarthPlaylist
Blue Planet http://bit.ly/BluePlanetPlaylist
Planet Earth II http://bit.ly/PlanetEarthIIPlaylist
Planet Dinosaur http://bit.ly/PlanetDinoPlaylist
Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of entertaining and thought-provoking natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this.
Want to share your views with the team? Join our BBC Studios Voice: https://www.bbcstudiosvoice.com/register
This is a page from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-fe....edback--contact-deta
After Giles has to deal with a heartbreaking decision he can free Spot of his pain and eventually reunited him with his brother. Taken from Tigers About The House.
Subscribe to BBC Earth: http://bit.ly/BBCEarthSubBBC Earth YouTube Channel: http://www.youtube.com/BBCEarth
BBC Earth Facebook http://www.facebook.com/bbcearth (ex-UK only)
BBC Earth Twitter http://www.twitter.com/bbcearth
Visit http://www.bbc.com/earth/world for all the latest animal news and wildlife videos
This is a channel from BBC Studios who help fund new BBC programmes.
The cubs are using anyone and anything to try out their new teeth so Giles wants to put them to the test.Taken from Tigers About The House.
Subscribe to BBC Earth: http://bit.ly/BBCEarthSubBBC Earth YouTube Channel: http://www.youtube.com/BBCEarth
BBC Earth Facebook http://www.facebook.com/bbcearth (ex-UK only)
BBC Earth Twitter http://www.twitter.com/bbcearth
Visit http://www.bbc.com/earth/world for all the latest animal news and wildlife videos
This is a channel from BBC Studios who help fund new BBC programmes.
At 150 strong this community of Chimps is the biggest yet found in Africa. Their numbers are so large they need a big territory with plenty of Fig trees, and they are willing to fight for it. Along with David Attenborough we get to witness the incredible stealth and brutality of a Chimp raid. Subscribe: http://bit.ly/BBCEarthSub
Taken From Planet Earth.
WATCH MORE:
New on Earth: https://bit.ly/2M3La96
Oceanscapes: https://bit.ly/2Hmd2kZ
Wild Thailand: https://bit.ly/2kR7lmh
Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of astounding, entertaining, thought-provoking and educational natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this.
Want to share your views? Join our BBC Studios Voice: https://www.bbcstudiosvoice.com/register
This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-fe....edback--contact-deta
Follow Ultravox:
Ultravox's Music Online: https://Ultravox.lnk.to/Listen
Subscribe: https://Ultravox.lnk.to/Subscribe
Website: https://Ultravox.lnk.to/Web
Facebook: https://Ultravox.lnk.to/FB
Instagram: https://Ultravox.lnk.to/IN
Twitter: https://Ultravox.lnk.to/TW
Lyrics:
Walked in the cold air
Freezing breath on a window pane
Lying and waiting
A man in the dark in a picture frame
So mystic and soulful
A voice reaching out in a piercing cry
It stays with you until
The feeling has gone only you and I
It means nothing to me
This means nothing to me
Oh, Vienna
The music is weaving
Haunting notes, pizzicato strings
The rhythm is calling
Alone in the night as the daylight brings
A cool empty silence
The warmth of your hand and a cold grey sky
It fades to the distance
The image has gone only you and I
It means nothing to me
This means nothing to me
Oh, Vienna
This means nothing to me
This means nothing to me
Oh, Vienna
Follow Ultravox:
Ultravox's Music Online: https://Ultravox.lnk.to/Listen
Subscribe: https://Ultravox.lnk.to/Subscribe
Website: https://Ultravox.lnk.to/Web
Facebook: https://Ultravox.lnk.to/FB
Instagram: https://Ultravox.lnk.to/IN
Twitter: https://Ultravox.lnk.to/TW
Lyrics:
Dancing with tears in my eyes
Weeping for the memory of a life gone by
Dancing with tears in my eyes
Living out a memory of a love that died
It's five and I'm driving home again
It's hard to believe that it's my last time
The man on the wireless cries again
It's over, it's over
Dancing with tears in my eyes
Weeping for the memory of a life gone by
Dancing with tears in my eyes
Living out a memory of a love that died
It's late and I'm with my love alone
We drink to forget the coming storm
We love to the sound of our favourite song
Over and over
Dancing with tears in my eyes
Living out a memory of a love that died
It's time and we're in each other's arms
It's time but I don't think we really care
Dancing with tears in my eyes
Weeping for the memory of a life gone by
Dancing with tears in my eyes
Weeping for the memory of a life gone by
Dancing with tears in my eyes
Ultravox quem usa compete..quem nao usa participa // Ultravox e pancadão e não falação..
the block interview with gary numan about ultravox and there influence.
Ultravox performing at Live Aid in front of 72,000 people in Wembley Stadium, London on the 13th July, 1985. The event was organised by Sir Bob Geldof and Midge Ure to raise funds for the Ethiopian famine disaster. Broadcast across the world via one of the largest satellite link-ups of all time, the concerts were seen by around 40% of the global population.
Remember to subscribe to stay up to date with all new releases in the channel.
Alfalfa leafcutting bees are way better at pollinating alfalfa flowers than honeybees. They don’t mind getting thwacked in the face by the spring-loaded blooms. And that's good, because hungry cows depend on their hard work to make milk.
Join our community on Patreon! https://www.patreon.com/deeplook
Please take our annual PBSDS Survey, for a chance to win a T-shirt! https://www.pbsresearch.org/c/r/DL_YTvideo
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.
---
Sure, cows are important. But next time you eat ice cream, thank a bee.
Every summer, alfalfa leafcutting bees pollinate alfalfa in an intricate process that gets them thwacked by the flowers when they release the pollen that allows the plants to make seeds. The bees’ hard work came to fruition last week when growers in California finished harvesting the alfalfa seeds that will be grown to make nutritious hay for dairy cows.
This is how it works.
To produce alfalfa seeds, farmers let their plants grow until they bloom. They need help pollinating the tiny purple flowers, so that the female and male parts of the flower can come together and produce fertile seeds. That’s where the grayish, easygoing alfalfa leafcutting bees come in. Seed growers in California release the bees – known simply as cutters – in June and they work hard for a month.
Alfalfa’s flowers keep their reproductive organs hidden away inside a boat-shaped bottom petal called the keel petal, which is held closed by a thin membrane that creates a spring mechanism.
Cutter bees come up to the flower looking for nectar and pollen to feed on. When they land on the flower, the membrane holding the keel petal breaks and the long reproductive structure pops right up and smacks the upper petal or the bee, releasing its yellow pollen. This process is called “tripping the flower.”
When the flower is tripped, pollen falls on its female reproductive organ and fertilizes it; bees also carry pollen away on their hairy bodies and help fertilize other flowers. In a few weeks, each flower turns into a curly pod with seven to 10 seeds growing inside.
Cutters trip 80 percent of flowers they visit, compared to honeybees, which only trip about 10 percent.
---
--- What kind of a plant is alfalfa?
Alfalfa is a legume, like beans and chickpeas. Other legumes also hold their reproductive organs within a keel petal.
--- What do bees use leaves for?
Alfalfa leafcutting bees and other leafcutter bees cut leaf and petal pieces to build their nest inside a hole, such as a nook and cranny in a log. Alfalfa farmers provide bees with holes in styrofoam boards.
---+ Read the entire article on KQED Science:
https://www.kqed.org/science/1....946996/this-bee-gets
---+ Shoutout!
?Congratulations ?to the following fans for correctly identifying the bee body part coated in pollen, on our Leafcutting Bee - the scopa or scopae!
Punkonthego
GamingCuzWhyNot
Galatians 4:16
Gil AGA
Edison Lewis
---+ Thank you to our Top Patreon Supporters ($10+ per month)!
Leonhardt Wille
Justin Bull
Bill Cass
Sarah Khalida Mohamad
Daniel Weinstein
Chris B Emrick
Karen Reynolds
Tea Torvinen
David Deshpande
Daisuke Goto
Companion Cube
WhatzGames
Richard Shalumov
Elizabeth Ann Ditz
Gerardo Alfaro
Robert Amling
Shirley Washburn
Robert Warner
Supernovabetty
johanna reis
Kendall Rasmussen
Pamela Parker
Sayantan Dasgupta
Joshua Murallon Robertson
Cindy McGill
Kenia Villegas
Shelley Pearson Cranshaw
Aurora
Dean Skoglund
Silvan Wendland
Ivan Alexander
monoirre
Sonia Tanlimco
Two Box Fish
Jane Orbuch
Allen
Laurel Przybylski
Johnnyonnyful
Rick Wong
Levi Cai
Titania Juang
Nathan Wright
Carl
Michael Mieczkowski
Kyle Fisher
JanetFromAnotherPlanet
Kallie Moore
SueEllen McCann
Geidi Rodriguez
Louis O'Neill
Edwin Rivas
Jeanne Sommer
Katherine Schick
Aurora Mitchell
Cory
Ricardo Martinez
riceeater
Daisy Trevino
KW
PM Daeley
Joao Ascensao
Chris Murphy
Nicolette Ray
TierZoo
---+ 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.
#leafcutter #bees #deeplook
The silent star of classic Westerns is a plant on a mission. It starts out green and full of life. It even grows flowers. But to reproduce effectively it needs to turn into a rolling brown skeleton.
You can learn more about CuriosityStream at https://curiositystream.com/deeplook.
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.
Tumbleweeds might be the iconic props of classic Westerns. But in real life, they’re not only a noxious weed, but one that moves around. Pushed by gusts of wind, they can overwhelm entire neighborhoods, as happened recently in Victorville, California, or become a threat for drivers and an expensive nuisance for farmers.
“They tumble across highways and can cause accidents,” said Mike Pitcairn, who tracks tumbleweeds at the California Department of Food and Agriculture in Sacramento. “They pile up against fences and homes.”
And tumbleweeds aren’t even originally from the West.
Genetic tests have shown that California’s most common tumbleweed, known as Russian thistle, likely came from Ukraine, said retired plant population biologist Debra Ayres, who studied tumbleweeds at the University of California, Davis.
A U.S. Department of Agriculture employee, L. H. Dewey, wrote in 1893 that Russian thistle had arrived in the U.S. through South Dakota in flaxseed imported from Europe in the 1870s.
“It has been known in Russia many years,” Dewey wrote, “and has quite as bad a reputation in the wheat regions there as it has in the Dakotas.” This is where the name Russian thistle originates, said Ayres, although tumbleweeds aren’t thistles.
The weed spread quickly through the United States — on rail cars, through contamination of agricultural seeds and by tumbling.
“They tumble to disperse the seeds,” said Ayres, “and thereby reduce competition.”
A rolling tumbleweed spreads out tens of thousands of seeds so that they all get plenty of sunlight and space.
Tumbleweeds grow well in barren places like vacant lots or the side of the road, where they can tumble unobstructed and there’s no grass, which their seedlings can’t compete with.
--- Where does a tumbleweed come from?
Tumbleweeds start out attached to the soil. Seedlings, which look like blades of grass, sprout at the end of winter. By summer, Russian thistle plants take on their round shape and grow flowers. Inside each flower, a fruit with a seed develops.
Other plants attract animals with tasty fruits, and get them to carry away their seeds and disperse them when they poop.
Tumbleweeds developed a different evolutionary strategy. Starting in late fall, they dry out and die, their seeds nestled between prickly leaves. Gusts of wind easily break dead tumbleweeds from their roots and they roll away, spreading their seeds as they go.
--- How big do tumbleweeds grow?
Mike Pitcairn, of the California Department of Food and Agriculture, said that in the state’s San Joaquin Valley they can grow to be more than 6 feet tall.
--- Are tumbleweeds dangerous?
Yes. They can cause traffic accidents or be a fire hazard if they pile up near buildings.
---+ Read the entire article on KQED Science:
https://www.kqed.org/science/1....922987/why-do-tumble
---+ For more information on the history and biology of Russian thistle, here’s a paper by Debra Ayres and colleagues:
https://naldc.nal.usda.gov/download/28657/PDF
---+ More great Deep Look episodes:
How Ticks Dig In With a Mouth Full of Hooks
https://www.youtube.com/watch?v=_IoOJu2_FKE
This Giant Plant Looks Like Raw Meat and Smells Like Dead Rat
https://www.youtube.com/watch?v=ycUNj_Hv4_Y
Upside-Down Catfish Doesn't Care What You Think
https://www.youtube.com/watch?v=eurCBOJMrsE
---+ See some great videos and documentaries from the PBS Digital Studios!
Above the Noise: Why Is Vaping So Popular?
https://www.youtube.com/watch?v=P9zps5LsVXs
Hot Mess: What Happened to Nuclear Power?
https://www.youtube.com/watch?v=_jEXZZDU6Gk
---+ 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
Support Deep Look on Patreon!! https://www.patreon.com/deeplook
(FYI - This episode is a *bit* more bloody that usual – especially a little after the 2-minute mark. Just letting you know in case flesh wounds aren’t your thing)
The same blood-sucking leeches feared by hikers and swimmers are making a comeback... in hospitals. Once used for questionable treatments, leeches now help doctors complete complex surgeries to reattach severed body parts.
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.
Leeches get a bad rap—but they might not deserve it. Yes, they’re creepy crawly blood-suckers. And they can instill an almost primal sense of disgust and revulsion. Humphrey Bogart’s character in the 1951 film The African Queen even went so far as to call them “filthy little devils.”
But the humble leech is making a comeback. Contrary to the typical, derogatory definition of a human “leech,” this critter is increasingly playing a key role as a sidekick for scientists and doctors, simply by being its bloodthirsty self.
Distant cousins of the earthworm, most leech species are parasites that feed on the blood of animals and humans alike. They are often found in freshwater and navigate either by swimming or by inching themselves along, using two suckers—one at each end of their body—to anchor themselves.
Upon reaching an unsuspecting host, a leech will surreptitiously attach itself and begin to feed. It uses a triangular set of three teeth to cut in, and secretes a suite of chemicals to thin the blood and numb the skin so its presence goes undetected.
---+ Read the entire article on KQED Science: https://www.kqed.org/science/1....921659/take-two-leec
---+ For more information:
David Weisblat at UC Berkeley studies leeches development and evolution
https://mcb.berkeley.edu/labs/....weisblat/research.ht
Biologists recently reported that leeches in that region can provide a valuable snapshot of which animals are present in a particular area
https://www.tandfonline.com/doi/abs/10.1080/14772000.2018.1433729?journalCode=tsab20&
---+ More Great Deep Look episodes:
Why the Male Black Widow is a Real Home Wrecker | Deep Look
https://www.youtube.com/watch?v=NpJNeGqExrc
For Pacific Mole Crabs It's Dig or Die | Deep Look
https://www.youtube.com/watch?v=tfoYD8pAsMw
Praying Mantis Love is Waaay Weirder Than You Think | Deep Look
https://www.youtube.com/watch?v=NHf47gI8w04&t=83s
---+ See some great videos and documentaries from the PBS Digital Studios! Above the Noise:
Cow Burps Are Warming the Planet | Reactions
https://www.youtube.com/watch?v=MnRFUSGz_ZM
What a Dinosaur Looks Like Under a Microscope | Eons
https://www.youtube.com/watch?v=4rvgiDXc12k
Hawking Radiation | Space Time
https://www.youtube.com/watch?v=qPKj0YnKANw
---+ 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
Join Deep Look on Patreon NOW!
https://www.patreon.com/deeplook
They may be dressed in black, but crow funerals aren't the solemn events that we hold for our dead. These birds cause a ruckus around their fallen friend. Are they just scared, or is there something deeper going on?
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.
* NEW VIDEOS EVERY OTHER TUESDAY! *
It’s a common site in many parks and backyards: Crows squawking. But groups of the noisy black birds may not just be raising a fuss, scientists say. They may be holding a funeral.
Kaeli Swift, a Ph.D. candidate at the University of Washington’s Avian Conservation Lab in Seattle, is studying how crows learn about danger from each other and how they respond to seeing one of their own who has died.
Unlike the majority of animals, crows react strongly to seeing a fellow member of their species has died, mobbing together and raising a ruckus.
Only a few animals like whales, elephants and some primates, have such strong reactions.
To study exactly what may be going on on, Swift developed an experiment that involved exposing local crows in Seattle neighborhoods to a dead taxidermied crow in order to study their reaction.
“It’s really incredible,” she said. “They’re all around in the trees just staring at you and screaming at you.”
Swift calls these events ‘crow funerals’ and they are the focus of her research.
--- What do crows eat?
Crows are omnivores so they’ll eat just about anything. In the wild they eat insects, carrion, eggs seeds and fruit. Crows that live around humans eat garbage.
--- What’s the difference between crows and ravens?
American crows and common ravens may look similar but ravens are larger with a more robust beak. When in flight, crow tail feathers are approximately the same length. Raven tail feathers spread out and look like a fan.
Ravens also tend to emit a croaking sound compared to the caw of a crow. Ravens also tend to travel in pairs while crows tend to flock together in larger groups. Raven will sometimes prey on crows.
--- Why do crows chase hawks?
Crows, like animals whose young are preyed upon, mob together and harass dangerous predators like hawks in order to exclude them from an area and protect their offspring. Mobbing also teaches new generations of crows to identify predators.
---+ Read the entire article on KQED Science:
https://www.kqed.org/science/1....923458/youve-heard-o
---+ For more information:
Kaeli Swift’s Corvid Research website
https://corvidresearch.blog/
University of Washington Avian Conservation Laboratory
http://sefs.washington.edu/research.acl/
---+ More Great Deep Look episodes:
Why Do Tumbleweeds Tumble? | Deep Look
https://www.youtube.com/watch?v=dATZsuPdOnM
Upside-Down Catfish Doesn't Care What You Think | Deep Look
https://www.youtube.com/watch?v=eurCBOJMrsE
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!
Why Climate Change is Unjust | Hot Mess
https://www.youtube.com/watch?v=Q5KjpYK12_c
Is Breakfast the Most Important Meal? | Origin Of Everything
https://www.youtube.com/watch?v=AxIOGqHQqZM
How the Squid Lost Its Shell | PBS Eons
https://www.youtube.com/watch?v=S4vxoP-IF2M
---+ 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
Giant Malaysian leaf insects stay still – very still – on their host plants to avoid hungry predators. But as they grow up, they can't get lazy with their camouflage. They change – and even dance – to blend in with the ever-shifting foliage.
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.
---
You’ll have to look closely to spot a giant Malaysian leaf insect when it’s nibbling on the leaves of a guava or mango tree. These herbivores blend in seamlessly with their surroundings because they look exactly like their favorite food: fruit leaves.
But you can definitely see these fascinating creatures at the California Academy of Sciences, located in the heart of San Francisco's Golden Gate Park, through the spring of 2022.
An ongoing interactive exhibit, ‘Color of Life,’ explores the role of color in the natural world. It's filled with a variety of critters, including Gouldian finches, green tree pythons, Riggenbach's reed frogs, and of course, giant leaf insects.
---+ Read the entire article on KQED Science:
https://www.kqed.org/science/1....947830/these-giant-l
--- What do giant leaf insects eat?
They’re herbivores, so they stick to eating leaves from their habitats, like guava and mango.
--- What’s one main difference between male and female giant leaf insects?
Males can actually fly as they have wings, which they use for mating.
--- But did you know that females don’t need males for mating?
They are facultatively parthenogenetic, which means they sometimes mate or sometimes reproduce asexually. If they mate with a male, they produce both males and females, but if the eggs remain unfertilized – only females are produced.
---+ For more information:
Visit California Academy of Sciences
https://calacademy.org/
---+ 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 type of reproduction female leaf insects can use in the absence of a suitable male - parthenogenesis.
Sylly
Jim Spencer
Rikki Anne
Cara Rose
GOT7 HOT7 THOT7 VISUAL7
---+ Thank you to our Top Patreon Supporters ($10+ per month)!
Trae Wright
Justin Bull
Bill Cass
Alice Kwok
Sarah Khalida Mohamad
Stefficael Uebelhart
Daniel Weinstein
Chris B Emrick
Seghan Seer
Karen Reynolds
Tea Torvinen
David Deshpande
Daisuke Goto
Amber Miller
Companion Cube
WhatzGames
Richard Shalumov
Elizabeth Ann Ditz
Robert Amling
Gerardo Alfaro
Mary Truland
Shirley Washburn
Robert Warner
johanna reis
Supernovabetty
Kendall Rasmussen
Sayantan Dasgupta
Cindy McGill
Leonhardt Wille
Joshua Murallon Robertson
Pamela Parker
Roberta K Wright
Shelley Pearson Cranshaw
KW
Silvan Wendland
Two Box Fish
Johnnyonnyful
Aurora
George Koutros
monoirre
Dean Skoglund
Sonia Tanlimco
Guillaume Morin
Ivan Alexander
Laurel Przybylski
Allen
Jane Orbuch
Rick Wong
Levi Cai
Titania Juang
Nathan Wright
Syniurge
Carl
Kallie Moore
Michael Mieczkowski
Kyle Fisher
Geidi Rodriguez
JanetFromAnotherPlanet
SueEllen McCann
Daisy Trevino
Jeanne Sommer
Louis O'Neill
riceeater
Katherine Schick
Aurora Mitchell
Cory
Nousernamepls
Chris Murphy
PM Daeley
Joao Ascensao
Nicolette Ray
TierZoo
---+ 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.
#leafinsects #insect #deeplook
You might suppose this catfish is sick, or just confused. But swimming belly-up actually helps it camouflage and breathe better than its right-side-up cousins.
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.
Normally, an upside-down fish in your tank is bad news. As in, it’s time for a new goldfish.
That’s because most fish have an internal air sac called a “swim bladder” that allows them to control their buoyancy and orientation. They fill the bladder with air when they want to rise, and deflate it when they want to sink. Fish without swim bladders, like sharks, have to swim constantly to keep from dropping to the bottom.
If an aquarium fish is listing to one side or flops over on its back, it often means it has swim bladder disease, a potentially life-threatening condition usually brought on parasites, overfeeding, or high nitrate levels in the water.
But for a few remarkable fish, being upside-down means everything is great.
In fact, seven species of catfish native to Central Africa live most of their lives upended. These topsy-turvy swimmers are anatomically identical to their right-side up cousins, despite having such an unusual orientation.
People’s fascination with the odd alignment of these fish goes back centuries. Studies of these quizzical fish have found a number of reasons why swimming upside down makes a lot of sense.
In an upside-down position, fish produce a lot less wave drag. That means upside-down catfish do a better job feeding on insect larvae at the waterline than their right-side up counterparts, who have to return to deeper water to rest.
There’s something else at the surface that’s even more important to a fish’s survival than food: oxygen. The gas essential to life readily dissolves from the air into the water, where it becomes concentrated in a thin layer at the waterline — right where the upside-down catfish’s mouth and gills are perfectly positioned to get it.
Scientists estimate that upside-down catfishes have been working out their survival strategy for as long at 35 million years. Besides their breathing and feeding behavior, the blotched upside-down catfish from the Congo Basin has also evolved a dark patch on its underside to make it harder to see against dark water.
That coloration is remarkable because it’s the opposite of most sea creatures, which tend to be darker on top and lighter on the bottom, a common adaptation called “countershading” that offsets the effects of sunlight.
The blotched upside-down catfish’s “reverse” countershading has earned it the scientific name negriventris, which means black-bellied.
--- How many kinds of fish swim upside down?
A total of seven species in Africa swim that way. Upside-down swimming may have evolved independent in a few of the species – and at least one more time in a catfish from Asia.
--- How do fish stay upright?
They have an air-filled swim bladder on the inside that that they can fill or deflate to maintain balance or to move up or down in the water column.
--- What are the benefits of swimming upside down?
Upside down, a fish swims more efficiently at the waterline, where there’s more oxygen and better access to some prey.
---+ Read the entire article on KQED Science:
https://www.kqed.org/science/1....922038/the-mystery-o
---+ For more information:
The California Academy of Sciences has upside-down catfish in its aquarium collection: https://www.calacademy.org/exh....ibits/steinhart-aqua
---+ More Great Deep Look episodes:
Take Two Leeches and Call Me in the Morning
https://youtu.be/O-0SFWPLaII
This Is Why Water Striders Make Terrible Lifeguards
https://youtu.be/E2unnSK7WTE
---+ See some great videos and documentaries from the PBS Digital Studios!
PBS Eons: What a Dinosaur Looks Like Under a Microscope
https://www.youtube.com/watch?v=4rvgiDXc12k
Origin of Everything: The Origin of Race in the USA
https://www.youtube.com/watch?v=CVxAlmAPHec
---+ 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