Sara, Irene y Carolina interpretan "Runnin'" de Naughty Boy, Beyoncé y Arrow Benjamin en las segundas batallas de la cuarta edición de La Voz Kids.

Si estás en España:
- Puedes ver este vídeo en http://www.telecinco.es/lavozkids/ y el programa completo en http://www.mitele.es/programas....-tv/la-voz-kids/0000

- Descárgate la app de La Voz Kids para no perderte nada del programa http://mdia.st/1i8iNqu

Si estás fuera de España:
- Suscripción/Suscription: http://bit.ly/2mqAtky

Oriol interpreta "Perfect" de Ed Sheeran en la semifinal de la cuarta edición de La Voz Kids.

Si estás en España:
- Puedes ver este vídeo en http://www.telecinco.es/lavozkids/ y el programa completo en http://www.mitele.es/programas....-tv/la-voz-kids/0000

- Descárgate la app de La Voz Kids para no perderte nada del programa http://mdia.st/1i8iNqu

Si estás fuera de España:
- Suscripción/Suscription: http://bit.ly/2mqAtky

Alison interpreta "Todo Mi Amor Eres Tú" de MIchael Jackson en las primeras audiciones a ciegas de la cuarta edición de La Voz Kids.

Si estás en España:
- Puedes ver este vídeo en http://www.telecinco.es/lavozkids/ y el programa completo en http://www.mitele.es/programas....-tv/la-voz-kids/0000

- Descárgate la app de La Voz Kids para no perderte nada del programa http://mdia.st/1i8iNqu

Si estás fuera de España:
- Suscripción/Suscription: http://bit.ly/2mqAtky

Our spy cam witnesses the claws come out as these fluffy-tailed rodent bandits scramble for acorns!
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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

Spy In The Wild
The spy creatures go undercover to explore the world of animal intelligence and reveal their use of tools, self-medication, culture and subterfuge. In Borneo, the most lifelike spy creature yet meets real orangutans and discovers how they use human tools. Spy Orang films how they wash with soap and how this behaviour is now part of their wild culture. In one of the most extraordinary scenes ever filmed, a wild orang uses a saw and competes with Spy Orang! Spy Otter takes us to the heart of the sea otter colony to reveal their ingenious methods of finding and cracking open a meal. Spy Bushbaby infiltrates the world of chimpanzees to witness their problem solving and tool making, and is even hunted by a curious chimp. Spy Squirrel discovers how real squirrels use intellect and subterfuge to outwit other thieving squirrels. Spy Ostrich Chick joins hatchlings in a nest and witnesses the daring trickery of the mother as she cleverly lures a leopard away from her vulnerable brood. Spy Termite Mound explores how drongo birds mislead meerkats in order to steal their food. Spy Crow films the world's most intelligent crow as he fashions tools from sticks to extract grubs and uses stones to crack nuts. Capuchins discover that Spy Rock offers a convenient way to smash open their favourite food. Spy Sloth meets a real sloth and reveals the incredible jungle pharmacy that exists amongst its fur.

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.

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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

A huddle of penguins is formed to protect each other from the cold - but young chicks can end up crushed or frozen.
Subscribe to BBC Earth for more amazing animal videos - http://bit.ly/BBCEarthSub

Watch more videos from BBC Earth:
Planet Earth http://bit.ly/PlanetEarthPlaylist
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Penguins: Spy In The Huddle
Discover what it really means to be a penguin as the latest spy cameras give us a whole new perspective on the behaviour and extreme survival tactics of these incredible and hugely charismatic birds. Following the success of Polar Bear - Spy on the Ice, the spy cams move to the next level with Penguincam, a range of super-realistic animatronic cameras disguised as penguins, chicks and eggs. Travelling to the freezing Antarctic to focus on the emperor penguins, and interspersing their stories with the very different experiences of the desert-based Humbolt in South America and the Falklands Islands-based rock-hopper, Penguin - Spy in the Huddle gives the inside track on all the drama and challenges they face throughout the year, as well as capturing plenty of comedy moments! The amazing technical wizardry of the penguincams allows them to blend into the penguin colonies, allowing a closer view of the creatures than ever before as they immerse themselves in the penguin world, both on land and at sea, where the camera's disguise leads to some surprising encounters - one penguin even falls in love with rockhoppercam!

About BBC Earth:
The world is an amazing place full of stories, beauty and natural wonder. Explore the official BBC Earth YouTube channel and meet the animals and wildlife of your planet. Here you'll find 50 years worth of astounding, entertaining, thought-provoking and educational natural history documentaries. Dramatic, rare and wild nature doesn't get more exciting than this. Subscribe to be the first to view new animal documentary videos. You can also become part of the BBC Earth community on Facebook, Twitter and Instagram. Here you'll find the best natural history content from the web, exclusive videos and images and a thriving, vibrant community.

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This is a channel from BBC Studios who help fund new BBC programmes.

While exploring a 700 year old monastery, Simon Reeve looks at Ethiopia's history of Christianity, the first Christian Kingdom in the world.
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Watch more videos from BBC Earth:
Planet Earth http://bit.ly/PlanetEarthPlaylist
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Planet Earth II http://bit.ly/PlanetEarthIIPlaylist
Planet Dinosaur http://bit.ly/PlanetDinoPlaylist

Check out the other two channels in our BBC Earth network:
BBC Earth Unplugged: http://bit.ly/BBCEarthUnplugged
BBC Earth Lab: http://bit.ly/BBCEarthLabYouTubeChannel

Simon Reeve's Sacred Rivers
History, adventure and travelogue combine as Simon Reeve explores three of the world's major rivers: the Nile, Yangtze and Ganges. Through the stories of the people who live alongside these great waterways, he uncovers their vast influence, and reveals how they unite, and divide, some of the most extraordinary parts of the world. Travel from the twin temples of Abu Simbel to the Nile delta; down the Yangtze from the giant Buddha of Leshen to the Three Gorges Dam and on to Shanghai; and along the great mother Ganges in a world caught between ancient traditions and astonishing modernity. Full of wonder and breathtaking, magisterial landscapes, Simon Reeve's Sacred Rivers is a potent mix of revelation and hands-on adventure - a riot of colour, extraordinary spectacle.

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.

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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

Convincing Panda to mate is not an easy task. Narrated by David Attenborough.
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Watch more videos from BBC Earth:
Planet Earth http://bit.ly/PlanetEarthPlaylist
Blue Planet http://bit.ly/BluePlanetPlaylist
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Planet Dinosaur http://bit.ly/PlanetDinoPlaylist

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Natural World: Saving The Panda
Granted exclusive access to the world's number one panda research centre and reserve at Chengdu, this film follows the life of a mother and cubs from conception through birth and hand-rearing, to play and young adulthood - and the international team that care for them - over the course of 18 months. With archive footage, the film looks back at the extraordinary East-West collaboration that brought giant pandas back from the brink of extinction, and ahead to the radical, controversial and risky next phase: reintroduction into the wild.

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.

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This is a channel from BBC Worldwide who help fund new BBC programmes
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Gordon Buchanan wants to get a close shot of a polar bear and its cub, but there are signs it might be dangerous.
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Watch more videos from BBC Earth:
Planet Earth http://bit.ly/PlanetEarthPlaylist
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Planet Earth II http://bit.ly/PlanetEarthIIPlaylist
Planet Dinosaur http://bit.ly/PlanetDinoPlaylist

Check out the other two channels in our BBC Earth network:
BBC Earth Unplugged: http://bit.ly/BBCEarthUnplugged
BBC Earth Lab: http://bit.ly/BBCEarthLabYouTubeChannel

Polar Bear Family and Me
Polar bears are one of the most iconic animals on earth, and yet we know so little about them. Apart from fleeting glimpses, scientists and filmmakers have never been able to follow individuals to tell their story and record details of their family life. Now, taking what he has learnt while making the absorbing series The Bear Family and Me, wildlife cameraman Gordon Buchanan embarks on a new, ambitious and dangerous mission - to gain the trust of a family of polar bears and, using this unique opportunity, observe the life of these enigmatic animals as never before, over the course of a year.

About BBC Earth:
The world is an amazing place full of stories, beauty and natural wonder. Explore the official BBC Earth YouTube channel and meet the animals and wildlife of your planet. Here you'll find 50 years worth of astounding, entertaining, thought-provoking and educational natural history documentaries. Dramatic, rare and wild nature doesn't get more exciting than this. Subscribe to be the first to view new animal documentary videos. You can also become part of the BBC Earth community on Facebook, Twitter and Instagram. Here you'll find the best natural history content from the web, exclusive videos and images and a thriving, vibrant community.

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This is a channel from BBC Studios who help fund new BBC programmes.

The Lion guardians are challenged by younger males looking for lionesses of their own.
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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

Rheingold - River (Fluss English Version)

River, you're flowing on the ????
Picking out your programmed way
Trace, your timeless trip through
Deutschland
????????????? super regional

Tones keep flowing like currents steadily
Currents are controlling our melody

You, know fortresses in ruins
Mirror glass and stainless steel
We, will build on microcircuits
And we're thinking digitally

Tones keep flowing like currents steadily
Currents are controlling our melody

River, we're living by your sides now
Transforming you into AC [Alternate Current]
You, you tell of days gone bye
Waves reflecting chromatically

Tones keep flowing like currents steadily
Currents are controlling our melody

River, you're flowing on the ????
Picking out your programmed way
Trace, your timeless trip through
Deutschland
????????????? super regional

Tones keep flowing like currents steadily
Currents are controlling our melody
----------------------------------------------
Fluss, Du fließt in alter Weise
durch Dein programmiertes Tal
in zeitloser Deutschlandreise
so schön und überregional.

Töne fließen wie ein Strom den Fluss
hinauf
Ströme steuern diesen neuen Tonverlauf.

Du kennst Burgen und Ruinen,
Spiegelglas und Edelstahl.
Wir, wir bauen auf Platinen
und denken digital.

Töne fließen wie ein Strom den Fluss
hinauf
Ströme steuern diesen neuen Tonverlauf.

Fluß, man lebt an Deinen Seiten
und macht dicht zum Wechselstrom,
du erzählst von alten Zeiten,
Wellen spiegeln sich in Chrom.

Töne fließen wie ein Strom den Fluss
hinauf
Ströme steuern diesen neuen Tonverlauf.

Fluss, Du fließt in alter Weise
durch Dein programmiertes Tal
in zeitloser Deutschlandreise
so schön und überregional.

Töne fließen wie ein Strom den Fluss
hinauf
Ströme steuern diesen neuen Tonverlauf.

Music video by Ultravox performing One Small Day (2009 Digital Remaster).

http://vevo.ly/juu6dh

There's a story in every grain of sand: tales of life and death, fire and water. If you scooped up a handful of sand from every beach, you'd have a history of the world sifting through your fingers.

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.

* NEW VIDEOS EVERY OTHER TUESDAY! *

---+ How does sand form?

Sand can be anything that has been worn down until it’s reduced to some tiny, essential fragment of what it once was: a granite pebble from the mountains; coral from the sea; obsidian from a volcano; even skeletons of microscopic sea animals. It's also a technical term. Bigger than sand, that’s gravel, smaller? Silt.

By studying the composition and texture of sand, geologists can reconstruct its incredible life history. “There’s just a ton of information out there, and all of it is in the sand,” said Mary McGann, a geologist at the United States Geological Survey in Menlo Park, CA.

McGann recently took part in a comprehensive research project mapping sand’s journey into and throughout San Francisco Bay.

Patrick Barnard, another USGS geologist who helped oversee the project, said that it will help scientists understand how local beaches are changing over time. In particular, Barnard wants to understand why beaches just south of San Francisco Bay are among the most rapidly eroding beaches in the state.

From 2010-2012, Barnard and his team sampled beaches, outcrops, rivers and creeks to track sand’s journey around the bay. They even collected sand from the ocean floor. The researchers then carefully analyzed the samples to characterize the shapes, sizes, and chemical properties of the sand grains.

Barnard said the information provides a kind of fingerprint, or signature, for each sample that can then be matched to a potential source. For example, certain minerals may only come from the Sierra Mountains or the Marin Headlands.

“If we’ve covered all of the potential sources, and we know the unique signature of the sand from these different sources, and we find it on a beach somewhere, then we basically know where it came from,” explained Barnard.

And those species aren’t the only things finding their way into the sand. Manmade materials can show up there, too. McGann has found metal welding scraps and tiny glass spheres (commonly sprinkled on highways to make road stripes reflective) in sand samples from around the bay.

“All of these things can get washed into our rivers or our creeks, or washed off the road in storm drains,” explained McGann. “Eventually they end up in, for example, San Francisco Bay.”

By piecing together all of these clues – the information found in the minerals, biological material and man made objects that make up sand – the researchers ended up with a pretty clear picture of how sand travels around San Francisco Bay.

Some sands stay close to home. Rocky sand in the Marin Headlands comes from nearby bluffs, never straying far from its source.

Other sands travel hundreds of miles. Granite from the Sierra Nevada mountains careens down rivers and streams on a century-long sojourn to the coast.

In fact, much of the sand in the Bay Area comes from the Sacramento and San Joaquin rivers, with local watersheds also playing an important role in transporting sand to the beach.

Although this project focused on San Francisco Bay, the same techniques could be used to study other coastal systems, he added, revealing the incredible life stories of sand from around the world.

---+ More 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

--
Full article: http://blogs.kqed.org/science/....2014/11/04/the-amazi

---+ 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 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

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

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

--- How do Chameleons Change Color?

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

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

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

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

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

The process of changing color is called metachrosis.

--- Why do Chameleons Change Color?

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

Their baseline is camouflage.

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

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

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

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

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

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


--- More great DEEP LOOK episodes:

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

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

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

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

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


--- Other Great Science Videos About Chameleons

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

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

--- More KQED SCIENCE:

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


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

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

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

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

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

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

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

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

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

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

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

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

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

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

---+ For more information:

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

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

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

---+ More Great Deep Look episodes:

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

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

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


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

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

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

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

---+ Follow KQED Science:

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

---+ About KQED

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

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

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


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

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

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

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.

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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.

---

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


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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.

#leafinsects #insect #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

Artificial light makes the modern world possible. But not all kinds of light are good for us. Electric light has fundamentally altered our lives, our bodies and the very nature of our sleep.

SUBSCRIBE: http://goo.gl/8NwXqt

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

Los consejos de Santa Teresita de Lisieux para soportar a la gente antipatica

Tekton es un canal de noticias católicas nacido en Barcelona (España), puedes encontrar noticias relacionadas con la Iglesia Católica, y recursos de otro tipo como vidas de Santos, el Evangelio del día, y otras muchas cosas más. No dudes en entrar y ver el contenido que sin duda te gustará, nuestra web es http://www.tekton.info
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Tekton es un canal de youtube católico nacido en Barcelona (España), puedes encontrar noticias relacionadas con la Iglesia Católica, y recursos de otro tipo como formación católica, oraciones, música católica, vídeos del Papa Francisco, curiosidades, vidas de Santos, el Evangelio del día, y otras muchas cosas más. No dudes en entrar y ver el contenido que sin duda te gustará

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