Topic: underwater

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Sea cucumbers are underwater vacuum cleaners

Join biologist Professor Ove Hoegh-Guldberg on the ocean sandy floor of Australia's Great Barrier Reef to witness an incredibly important ecological process: sea cucumbers pooping. Why is this so important? When se...

The Animal That Wouldn’t Die: The Hydra

Just a few millimeters long and full of embryonic cells, the hydra is a small and mysterious cnidarian polyp that seems to defy mortality. Skunk Bear's Adam Cole and Robert Krulwich team up to tell the amazing tale of...

Two weeks under the sea at Aquarius Reef Base

Travel down to Aquarius Reef Base, the only underwater research lab on the sea floor, with Mission 31 aquanaut and scientist Liz Bentley Magee. In this NOVA PBS video, she explains what it's like to live in this incre...

The Portuguese Man-of-War Up Close

This incredible video, and the corresponding photos featured at National Geographic, are by retired combat photographer Aaron Ansarov, who photographs the Portuguese man-of-war (and releases them unharmed) when they w...

REMUS SharkCam: The hunter and the hunted

When the Woods Hole Oceanographic Institution team took their REMUS "SharkCam" underwater vehicle -- equipped with six camera views -- to Mexico's Guadalupe Island, they expected to track and film great white sharks f...

A deep-sea octopus that protects her eggs for four & a half years

In observations from 2007 to 2011, deep-sea diving researchers at Monterey Bay Aquarium Research Institute (MBARI) discovered that the female Graneledone boreopacifica guards her eggs for 53 months -- that's almost fo...

Fish that walk: Tasmania’s Spotted Handfish

With pectoral fins that look like little feet, this "walking" Spotted Handfish was one of the first fish documented in Australian waters, and is not the only known handfish -- there are pink, red, and yellow species, ...

Photographer Swims With Huge Goliath Groupers

"They remind me of my family, like my Uncle Johnny from New Jersey," explains photographer David Doubilet of Florida's massive goliath groupers. From National Geographic: They gather on shipwrecks and reefs to eat ...

The Quest for Sea Ice: Swimming with polar bears and a camera

Follow a group of four polar bears as they swim in search of ice. Arctic Bear Productions filmmaker Adam Ravetch captured this footage by attaching a camera to one of the four animals. The big paws, the sun on the hor...

Testing a Space Rover Under Alaskan Ice

Someday it may be possible to explore below the icy surface of Jupiter's sixth-closest moon, Europa, and if this happens, it could be done with a technological descendant of this robotic rover: NASA JPL's Buoyant Rove...

Science Friday: Caring for Cuttlefish

Fostering the successful life cycle of a cuttlefish is an intensive process. From incubating new eggs in oxygenated recycled soda bottles, to transferring them to "Cuttle Cradles," to setting up their environments to ...

Collecting the deep sea animals of Monterey Submarine Canyon

Go behind-the-scenes with Stephanie Bush, postdoctoral fellow and expert on deep-sea cephalopods, as she dives down into Monterey Submarine Canyon via a ROV (remotely operated vehicle) camera. Her team is collecting s...

The Gathering Swarms: Sardine Run off the coast of South Africa

"The seasonal movement of billions of sardines along the coast of South Africa, the greatest fish migration on the planet..." Billions. In this clip from PBS' The Gathering Swarms, synchronous sardines are a constantl...

Swimming Feather Star

This is a feather star swimming off the coast of Japan. Feather stars are crinoids or crinoidea, meaning "Lily-like" in Greek, and thrive in the Indian Ocean up to Japan, as well as in the Atlantic. From Wild Singapor...

Lost in Jellyfish Lake

We love videos from Eil Malk island's Jellyfish Lake in Palau. This GoPro commercial takes us underwater to swim with photographer Nana Trongratanawong and the multitudes of golden jellyfish that live in this unique w...

Lost at sea: Researching the impact of sunken shipping containers

Thousands of shipping containers are lost from cargo ships every year, eventually falling to the ocean floor and disturbing the deep-sea ecosystems where they land. In February 2004, a container was discovered within ...

Enoshima Aquarium: An octopus unscrews a jar from the inside

This octopus can get itself out of a closed jar... well, it can open the jar lid. It actually doesn't seem to want to get itself out of the jar. This video was filmed by the folks at Enoshima Aquarium in Fujisawa, Ja...

The Neutral Buoyancy Lab

If you have underwater training or testing to conduct, NASA has the Neutral Buoyancy Lab for you! Cranes! Diving suits! Workshops! Hyperbaric chambers! This video is a strange and fabulous mix ...

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