Topic: marine biology

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How do jellyfish sting?

Have you ever been stung by a jellyfish? From the huge Lion's mane jellyfish to tiny jellyfish larvae, jellies (which aren't actually fish) can accidentally sting ocean swimmers with their built-in defensive mechanism...

The stoplight loosejaw, the marlin, & Extreme Life of the Sea

Challenging environments can help create some of the most marvelous evolutionary solutions. Two examples: The stoplight loosejaw and the marlin. The Stoplight Loosejaw is a small, deep sea dragonfish that has an "i...

Divers may have discovered the largest squid egg mass ever seen

A group of divers discovered a "car-sized ball of squid eggs" at 22 meters (72 feet) deep off the coast of Turkey. From RR Helm at Deep Sea News, who has a lot of excellent information about the find: Lutfu Tanrio...

Studying the deep sea octopus Opisthoteuthis “Adorabilis”

From Science Friday's The Macroscope, Post Doctoral Researcher Stephanie Bush of the Monterey Bay Aquarium Research Institute (MBARI) introduces us to a tiny Opisthoteuthis deep-sea octopus, a creature that's in the s...

ROV footage of deep sea creatures from the coast of Puerto Rico

Real-time science collaboration is much easier thanks to today's streaming video technology. During dives made by a remotely operated vehicle (ROV) off the coast of Puerto Rico, a team of National Oceanic and Atmosphe...

Deep Look: From Drifter to Dynamo – The Story of Plankton

Mind-blowing fact: A massive group of single-celled algae called diatoms are considered champions of photosynthesis. Why? Diatoms are responsible for an estimated 20% to 40% -- maybe even 60% -- of the Earth's oxygen....

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...

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