Rare Giant Snail Feasts On Earthworm | Wild New Zealand | BBC Earth

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Watch These Cunning Snails Stab and Swallow Fish Whole | Deep Look

Join Deep Look on Patreon NOW! https://www.patreon.com/deeplook Cone Snails have an arsenal of tools and weapons under their pretty shells. These reef-dwelling hunters nab their prey in microseconds, then slowly eat them alive. 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 research shows that cone snails — ocean-dwelling mollusks known for their brightly colored shells — attack their prey faster than almost any member of the animal kingdom. There are hundreds of species of these normally slow-moving hunters found in oceans across the world. They take down fish, worms and other snails using a hollow, harpoon-like tooth that acts like a spear and a hypodermic needle. When they impale their prey, cone snails inject a chemical cocktail that subdues their meal and gives them time to dine at their leisure. Cone snails launch their harpoons so quickly that scientists were previously unable to capture the movement on camera, making it impossible to calculate just how speedy these snails are. Now, using super-high-speed video, researchers have filmed the full flight of the harpoon for the first time. From start to finish, the harpoon’s flight takes less than 200 micro-seconds. That’s one five-thousandth of a second. It launches with an acceleration equivalent to a bullet fired from a pistol. So how do these sedentary snails pull off such a high-octane feat? Hydrostatic pressure — the pressure from fluid — builds within the half of the snail’s proboscis closest to its body, locked behind a tight o-ring of muscle. When it comes time to strike, the muscle relaxes, and the venom-laced fluid punches into the harpoon’s bulbous base. This pressure launches the harpoon out into the snail’s unsuspecting prey. As fast as the harpoon launches, it comes to an even more abrupt stop. The base of the harpoon gets caught at the end of the proboscis so the snail can reel in its meal. The high-speed action doesn’t stop with the harpoon. Cone snail venom acts fast, subduing fish in as little as a few seconds. The venom is filled with unique molecules, broadly referred to as conotoxins. The composition of cone snail venom varies from species to species, and even between individuals of the same species, creating a library of potential new drugs that researchers are eager to mine. In combination, these chemicals work together to rapidly paralyze a cone snail’s prey. Individually, some molecules from cone snail venom can provide non-opioid pain relief, and could potentially treat Parkinson’s disease or cancer. --- Where do cone snails live? There are 500 species of cone snails living in the Indian and Pacific Oceans, the Caribbean and Red Seas, and the Florida coast. --- Can cone snails kill humans? Most of them do not. Only eight of those 500 species, including the geography cone, have been known to kill humans. --- Why are scientists interested in cone snails? Cone snail venom is derived from thousands of small molecules call peptides that the snail makes under its shell. These peptides produce different effects on cells, which scientists hope to manipulate in the treatment of various diseases. ---+ Read the entire article on KQED Science: https://wp.me/p6iq8L-84uC ---+ For more information: Here’s what WebMD says about treating a cone snail sting: https://www.webmd.com/a-to-z-guides/cone-snail-sting ---+ More Great Deep Look episodes: This Mushroom Starts Killing You Before You Even Realize It https://www.youtube.com/watch?v=bl9aCH2QaQY Take Two Leeches and Call Me in the Morning https://youtu.be/O-0SFWPLaII ---+ See some great videos and documentaries from the PBS Digital Studios! Space Time: Quantum Mechanics Playlist https://www.youtube.com/watch?v=-IfmgyXs7z8&list=PLsPUh22kYmNCGaVGuGfKfJl-6RdHiCjo1 Above The Noise: Endangered Species: Worth Saving from Extinction? https://www.youtube.com/watch?v=h5eTqjzQZDY ---+ 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

Shoebill Chick Reveals Darkside | Africa | BBC

The rivalry between two shoebill chicks becomes apparent when their mother leaves to fetch water. Taken from Africa. 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 Worldwide, trading as BBC Studios, who help fund new BBC programmes.

【観覧注意】ジャンボミルワーム50gVSアフウシ5匹何分で食べきるか、やってみた。Feeding a Pyxicephalus adspersus

Cute But Vicious Hedgehog Attacks A Deadly Viper | Wildest Middle East

The long-eared hedgehog looks perfectly innocent, but is actually cute and vicious in equal amounts. How will this little guy fare when faced with a deadly viper that wants to eat him? Subscribe to Discovery UK for more great clips: http://www.youtube.com/subscription_center?add_user=DiscoveryTV Follow Discovery UK on Twitter: http://www.twitter.com/DiscoveryUK

ISSO É O QUE ACONTECE QUANDO SE MEXE COM A PLANTA ERRADA

ISSO É O QUE ACONTECE QUANDO SE MEXE COM A PLANTA ERRADA ✔VÍDEO INFORMATIVO E EDUCATIVO COM O INTUITO DE LEVAR CONHECIMENTO À QUEM ASSISTIR.✔ ✔VÍDEO INFORMATIVO E EDUCATIVO COM O INTUITO DE LEVAR CONHECIMENTO À QUEM ASSISITiR.✔

When the air itself becomes saturated and the temperature is just right, rare giants start to emerge. Armed with 6 thousand teeth to shred its prey, the Powelliphanta Snail is a voracious predator with revolting table manners.

Taken From Wild New Zealand

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This is a channel from BBC Worldwide, trading as BBC Studios, who help fund new BBC programmes.

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