Today's Catch

Two Adélie penguins face each other while lying on ice.

Adélie Penguins Face Off

These cute Adélie penguins ( Pygoscelis adeliae ) are actually having a bit of a spat. In the spring (October for them), the penguins form breeding colonies on rocky coasts with thousands of birds in a g.roup. Krill, a tiny crustacean, is the...
A school of Hawaiian squirrelfish.

A School of Hawaiian Squirrelfish

Check out the eyes on these Hawaiian squirrelfish ( Sargocentron xantherythrum )! Because squirrelfish are almost entirely nocturnal, they need big eyes to absorb as much moonlight and starlight as they can in the dark. During the day, they hide out...

Grey Reef Shark, West New Britain, Father Reefs, Papua New Guinea

Gray reef sharks ( Carcharhinus amblyrhynchos ) are known for being active at night. They are considered Near Threatened by the IUCN Red List due to fishing and the loss of their coral reef habitat. The sinister animal, with its sleek body, can be...
Many medicines were based on a chemical from the sea sponge Tectitethya crypta.

From Sea Sponge to HIV Medicine

Tectitethya crypta (formerly known as Cryptotheca crypta ) is a large, shallow-water sponge found in the Caribbean. It was first studied for medical purposes in the 1950s when few scientists or doctors thought to look for medicines in the ocean. But...

Sea Potato

This sea potato ( Echinocardium cordatum ) looks similar to its root vegetable namesake, but it's a sea urchin! The spines on this urchin are more hair-like than the spikes seen on some more commonly known urchins, and they lay flat across the...
A ribbon worm curled up in a mud flat.

A Ribbon Worm From the Mud Flats

The over 1,000 species of ribbon worms ( Nemertea ) are mostly found in marine environments (like the Hubrechtia found in a mud flat, in the photo). These worms have both a mouth and an anus (unlike flatworms, which use the same opening for both...
The elusive giant squid

Giant Squid Caught Live On Screen

In 2012, the long-elusive giant squid was finally filmed live in its natural habitat. The squid was found by placing glowing lures outside of a submersible to mimic jellyfish, which typically indicate to the squid that food is nearby. Before this...
Polar bears have evolved to survive in the Arctic.

Polar Bear on the Ice

Polar bears have evolved to survive in the Arctic with large, oar-like front paws for better swimming, as well as insulating blubber, and two layers of fur for the frigid temperatures. They rely on pack ice, traveling thousands of miles in a year...
A right whale opens wide, revealing huge plates of baleen hanging from its upper jaw.

Right Whale Baleen

A right whale opens its mouth wide, revealing huge plates of baleen hanging from its upper jaw. There are between 200 and 270 baleen plates on each side of a right whale's upper jaw. They work like a giant sieve to catch the whale's food. Strong but...

Pinecone Fish

The pinecone fish ( Monocentris japonicus ) looks like the real thing on land—covered in large scales with a dark trim. They are found lurking in caves and under ledges in the Indian and Western Pacific Oceans, and are a popular aquarium fish.

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