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From monkeys mourning a "dead baby", to lion cubs playing and boisterous bears, our Spy Cameras have been able to capture some truly magical moments on their undercover adventures. Join us as we share some of our favourite interactions from the natural world - all caught on Spy Cam!
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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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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.
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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! *
---+ 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
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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 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
Kids play in HUGE Gumball Machine, Ball Pit and Surprise Eggs to Learn Color Red | ChuChu TV Funzone
HUGE 3D Gumball Machine, Ball Pit show & Surprise Eggs for Kids – Play & Learn Color RED in ChuChu TV Funzone 3D Series for preschoolers/toddlers.
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ChuChu TV Police Chase Thief in Railroad Police Car & Save Giant Surprise Eggs Toys, Gifts for Kids -
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Chuchu TV Surprise Eggs Toys for Learning Numbers - Learn To Count 1 to 10
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Learn Baby Wild Animals & Animal Sounds | Chuchu TV Surprise for Kids
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Learn Baby Farm Animals & Animal Sounds | Chuchu TV Kids Surprise
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Learn Colours with Surprise Nesting Eggs Nursery Rhymes Toys - Chuchu TV Field Trip!
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Christmas Surprise Eggs | Christmas Gifts & Decorations
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Surprise Eggs Farm Animals Toys | Learn Farm Animals & Animal Sounds
https://www.youtube.com/watch?v=6RSpB3Glu_Q
============================================
Video: Copyright 2016 ChuChu TV® Studios
Music and Lyrics: Copyright 2016 ChuChu TV® Studios
============================================
For thousands of years, mysterious bacteria have remained dormant in the Arctic permafrost. Now, a warming climate threatens to bring them back to life. What does that mean for the rest of us?
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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
Male crickets play tunes non-stop to woo a mate or keep enemies away. But they're not playing their song with the body part you're thinking.
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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.
---
Ask most people about crickets and you’ll probably hear that they’re all pretty much the same: just little insects that jump and chirp.
But there are actually dozens of different species of field crickets in the U.S. And because they look so similar, the most common way scientists tell them apart is by the sounds they make.
“When I hear an evening chorus, all I hear are the different species,” said David Weissman, a research associate in entomology at the California Academy of Sciences in San Francisco.
Weissman has spent the last 45 years working to identify all the species of field crickets west of the Mississippi River. In December, he published his findings in the journal Zootaxa, identifying 35 species of field crickets in the western states, including 17 new species. California alone hosts 12 species. But many closely resemble the others. So even for one of the nation’s top experts, telling them apart isn’t a simple task.
“It turns out song is a good way to differentiate,” Weissman said.
--- How do crickets chirp?
On the underside of male crickets’ wings there’s a vein that sticks up covered in tiny microscopic teeth, all in a row. It’s called the file. There's a hard edge on the lower wing called the scraper.
When he rubs his wings together - the scraper on the bottom wing grates across all those little teeth on the top wing. It’s like running your thumb down the teeth of a comb. This process of making sound is called stridulation.
--- How do crickets hear?
Crickets have tiny ears, called tympana on each of their two front legs. They use them to listen for danger and to hear each other calling.
--- Why do crickets chirp?
Crickets have several different types of songs that serve different purposes. The familiar repetitive chirping song is a mating call that male crickets produce to attract females that search for potential mates.
If a female makes physical contact with a male he will typically switch to a second higher-pitched, quieter courtship song.
If instead a male cricket comes in contact with another adult male he will let out an angry-sounding rivalry call to tell his competitor to back off.
---+ Read the entire article on KQED Science:
https://ww2.kqed.org/science/2....020/01/14/crickets-c
---+ For more information:
Professor Fernando Montealegre-Z’s bioacoustics lab
http://bioacousticssensorybiology.weebly.com/
David Weissman’s article cataloging field crickets in the U.S.
https://www.biotaxa.org/Zootax....a/article/view/zoota
---+ Shoutout!
?Congratulations ?to the following fans on our YouTube community tab for correctly identifying the name and function of the kidney bean-shaped structure on the cricket’s tibia - the tympanum, or tympanal organ:
sjhall2009
Damian Porter
LittleDreamerRem
Red Segui
Ba Ri
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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.
¿La IGLESIA CATÓLICA es idolatra por permitir arrodillarse delante de una imagen?
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When it comes to spotting prey, sharks and rays have a secret sense beyond sight and smell. Tiny goo-filled organs called Ampullae of Lorenzini detect the invisible electric fields produced by all living creatures.
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 Sharks and Rays Sense Electric Fields?
Most animals don’t have the ability to detect electric fields. But sharks, rays, skates and sawfish — members of a group called Elasmobranchii — are masters of detecting electric signals. It’s one of their defining features. Elasmobranchs have specialized organs called Ampullae of Lorenzini. These tiny structures allow them to home in on weak bioelectric fields generated by nearby prey.
Elasmobranch’s electrosensory organs are named after a 17th century Italian physician, Stefano Lorenzini, who first identified them while dissecting an electric ray. Lorenzini noticed dozens of tiny pores around the animal’s mouth. Each of the pores led to jelly-filled canals that ended in pocket-like structures that he called ampullae, the Latin word for a type of round-bottomed flask.
Animals emit low frequency electric fields due to a process known as osmoregulation. This process allows the concentration of ions (charged atoms or molecules) to flow between the inside of our bodies and the outside. In order for our cells to stay intact, the flow of ions needs to be balanced.
But balanced doesn’t necessarily mean equal. The concentration of ions within a shrimp’s body is much lower than that of the sea water it swims in. Their voltage, or potential difference generated between the two concentrations across “leaky” surfaces, can then be detected by the ampullae.
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---
Read the article for this video on KQED Science:
http://ww2.kqed.org/science/2015/08/11/sharks-and-rays-sense-electricity-fish-cant-hide/
#deeplook
"Happy New Year" by ABBA reworked to Minor key.
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Disfruta con los dibujos animados y caricaturas de Om Nom, el protagonista de la serie Cut The Rope, ¡que ya tiene su propia serie de dibujos! Suscríbete a Las Historias de Om Nom, y no te pierdas ningún capítulo de esta caricatura infantil tan adorable.
Aunque Om Nom es muy bueno comiendo dulces, también puede hacer trucos de magia . Descubri que hay dentro del sombrero mágico de Om Nom.
Las Historias de Om Nom: Trabajo Soñado - Mago | Episodio 60 | Cut The Rope
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Disfruta con los dibujos animados y caricaturas de Om Nom, el protagonista de la serie Cut The Rope, ¡que ya tiene su propia serie de dibujos! Suscríbete a Las Historias de Om Nom, y no te pierdas ningún capítulo de esta caricatura infantil tan adorable.
Esta vez Om Nom estra trabajando como cartero y entrega cartas, pero una vez que le dio la espalda al paqute.. Mira el episodio de las Historias de Om Nom y mira lo que sucedío.
Las Historias de Om Nom: Trabajo Soñado - Cartero | Episodio 62 | Cut The Rope
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A jamais, Seigneur, ta parole, immuable dans les cieux.
Your word, o Lord, for ever stands firm in the heavens.
Dovijeka, o Gospodine, riječ tvoja ostaje, stalna poput nebesa.
La tua parola, Signore, è stabile come il cielo.
Tu palabra, Señor, permanece para siempre, está firme en el cielo.
In aeternum, Domine, verbum tuum constitutum est in caelo.
上主,你的聖言,存留永遠,它堅固而不移,好似蒼天
(Ps 119, 89)
Réponse, prière du soir / Evening prayer responsory
Text:
A jamais, Seigneur, ta parole, immuable dans les cieux.
D'âge en âge, demeure ta vérité. Immuable.
Gloire au Père, et au Fils, et au Saint-Esprit. A jamais.
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Disfruta con los dibujos animados y caricaturas de Om Nom, el protagonista de la serie Cut The Rope, ¡que ya tiene su propia serie de dibujos! Suscríbete a Las Historias de Om Nom, y no te pierdas ningún capítulo de esta caricatura infantil tan adorable.
Om nom quiere complacer a todo el mundo al mismo tiempo!. Trata de completar todos los riesgos pero el tiempo lo sobrepasa. ¿Cuál serán las consecuencias?. Descúbrelo en este nuevo episodio de las historias de om nom : super noms
Las Historias de Om Nom - SuperNoms - Ayuda de Emergencia | Episodio 90 | Cut The Rope
Something is growing inside that fruit fly in your kitchen. At dusk, the fly points its wings straight up and dies in a gruesome pose so that a fungus can ooze out and fire hundreds of reproductive spores.
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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.
Some of the scariest monsters are the ones that grow inside another being and take over its body. Think of the movie Alien, where the reptile-like space creature explodes out of its victim’s chest.
That monster might be fictional, but scientists are studying a fungus that’s horrifyingly real — at least for the flies it invades, turns into a zombie-like state and kills in order to reproduce.
“Oh, it’s a nightmare for the flies,” said entomologist Brad Mullens, who studied the fungus at the University of California, Riverside.
The fungus is known by its scientific name, Entomophthora muscae, which means “fly destroyer.” It lives off houseflies and fruit flies, among others.
“It’s a crazy system,” said Carolyn Elya, a biologist at Harvard. “The fungus only kills at dusk.”
Like a killer puppeteer, the fungus follows a precise clock.
At dusk on the fourth or fifth day after it picks up a fungal spore, an infected fruit fly stops flying. It starts behaving erratically, for example climbing up and down toothpicks that Elya puts into the vials where she keeps the infected insects.
Then the fly climbs to the top of the toothpick, a behavior Elya and other scientists refer to as “summiting.”
In an unusual twist, the fly then extends its mouthpart down, and some liquid drips out and glues the fly to the surface it’s standing on. Over the next 10 minutes, the fly’s wings ascend until they’re pointing upwards and it dies frozen in this lifelike pose.
Soon after, white spongy fungus oozes out of its abdomen. This white goo is made up of hundreds of lollipop-shaped protrusions which each launch a microscopic bell-shaped spore at high speed. Now the spores just need to get into another fly to grow.
--- Could this or a similar fungus “zombify” humans?
“No, it's very unlikely,” Elya said. “We can control our bodily temperature to kill invaders.”
-- Can we use the fungus as biological control?
Researchers have tried, but the spores are too fragile to grow in the lab.
---+ Read the entire article on KQED Science:
https://www.kqed.org/science/1....949314/this-killer-f
---+ Shoutout!
?Congratulations? to the following fans on our Deep Look Community Tab for coming up with the top titles - as decided by fellow Deep Peeps - for a horror movie starring this fungus:
Joginiz - "Flyday the 13th'
KingXDragoon - "Pretty Fly for a dead guy"
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De paus van de Lilith Kerk - The whitecorpse horror (as an ode to HP Lovecraft "the Dunwich horror")
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#fruitflies #deeplook
Bulgarian traditional song Dilmano Dilbero, The Great Voices of Bulgaria, Conductor Ilia Mihaylov
Composed by Jacques Berthier.
Solo lyrics from Litany of the Holy Name.
Taizé, 9/9/2012
Video © Le Jour du Seigneur / http://www.lejourduseigneur.com
Avant la fin de la lumière,
Nous te prions, Dieu Créateur,
Pour que, fidèle à ta bonté,
Tu nous protèges, Tu nous gardes.
Que loin de nous s'enfuient les songes,
Et les angoisses de la nuit,
préserve-nous de l'ennemi :
Que Ton amour sans fin nous garde.
Exauce-nous, Dieu, notre Père,
Par Jésus-Christ, notre Seigneur,
Dans l'unité du Saint-Esprit,
Régnant sans fin dans tous les siècles.
---
To Thee before the close of day,
Creator of the world, we pray
That, with Thy wonted favour, Thou
Wouldst be our guard and keeper now.
From all ill dreams defend our sight,
From fears and terrors of the night;
Withhold from us our ghostly foe,
That spot of sin we may not know.
O Father, that we ask be done,
Through Jesus Christ, Thine only Son,
Who, with the Holy Ghost and Thee,
Doth live and reign eternally.
---
Te lucis ante términum,
rerum Creátor, póscimus,
ut pro tua cleméntia
sis præsul et custódia.
Procul recédant sómnia
et nóctium phantásmata;
hostémque nostrum cómprime,
ne polluántur córpora.
Præsta, Pater piíssime,
Patríque compar Unice,
cum Spíritu Paráclito
regnans per omne sǽculum.
Photo (c) Maciej Biłas