Topic: marine biology

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Ocean sponges have incredible filtering power

Ocean sponges are fascinating multi-cellular animals that don't walk or swim. They eat by filter-feeding, straining the water around them to capture organic debris particles and microscopic life forms. How powerfu...

Orca Rescue in 4K: The conservation efforts of Dr. Ingrid Visser

Follow marine biologist Dr. Ingrid Visser and the wild orca that she researches and advocates for in this episode of HERO4: The Adventure of Life in 4K resolution: Orca Rescue in 4K. Filmed on location in New Zeal...

ScienceTake: A Surprising Appetite for Dead Jellyfish

Marine scientists previously suspected that dead jellyfish were not a preferred choice of food for ocean floor scavengers, but a recently-recorded test using Helmet and Lion’s Mane jellyfish has prompted a rethinking ...

ScienceTake: Tagging Tiny Turtle Hatchlings

When sea turtle hatchlings emerge from their sand-covered eggs and scurry quickly toward the ocean, we know that, if they're lucky enough to avoid predators, they're helped forward on their journeys by the ocean curre...

Pygmy Seahorses: Masters of vibrantly-colored coral camouflage

The vibrant colors of thumbnail-sized Pygmy Seahorses have always been aligned with the brilliant oranges or purples of the Gorgonian sea fan corals that they're found camouflaged with, but until biologists at San Fra...

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...

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, ...

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...

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 ...

The Mudskipper: An amazing amphibious fish

This amphibious fish is called a mudskipper and it uses its pectoral fins to walk on land, specifically mud. It also rolls, jumps, digs, excavates, socializes, fights for territory, and breathes...

Underwater time lapse can show the secret life of a coral reef

For the last five years, Dr. Pim Bongaerts of University of Queensland’s Global Change Institute has been documenting the lives of corals through time lapse photography. It all happens t...

A Male Sapphirina copepod (or Sea Sapphire)

This is a male Sapphirina copepod or Sea Sapphire, transparent and only a few millimeters long, but attention-grabbing when they seem to emit an incredible blue flash. What causes luminous color from nothing? The R...

3D scanning an anglerfish’s final meal

In 1999, near the Cape Verde Islands, “an unusually large Caulophryne pelagica, a fanfin or hairy anglerfish, was captured in perfect condition, due perhaps to a lethargy induced by a pr...

The Sea Pig – Songs for Unusual Creatures

Gather some stuff from around the house to make music with because it’s time for another Songs for Unusual Creatures with Michael Hearst and special guests The Kronos Quartet: A Song fo...

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