Today's Catch

A male great hammerhead shark swims just below the surface of the water in the Bahamas at sunset.

Hammerhead Shark at Sunset

A male great hammerhead shark swims in the Bahamas at sunset. Scientists debate the purpose behind these sharks' hammer-shaped heads. A commonly accepted theory is that the shape allows the shark to scan a wider area of the ocean through its sensory...

Why the Octopus Brain is so Extraordinary

An octopus is a lot brainier than you might imagine considering one of its closest living relatives is a sea slug. In fact, some scientists argue it could be the first intelligent being on the planet. They can complete puzzles, untie knots, open...

The Vampire Squid from Hell

With a scientific name that means "the vampire squid from hell," you'd expect the vampire squid ( Vampyroteuthis infernalis ) to be a fearsome predator terrorizing the deep. Despite its demonic look, that isn't the case; instead, the vampire squid...

Skeleton Shrimp

Skeleton shrimp are amphipods (a type of crustacean related to shrimp and crabs). They have grasping legs to hang onto their surroundings as they sway with the current and use their front claws to grab their food—algae, detritus, and copepods. This...
The fluorescent shortnose greeneye fish.

A Shortnose Greeneye Fish Aglow

Under white light, this shortnose greeneye fish ( Chlorophthalmus agassizi ) looks unimpressive. But, in dim blue light—the type usually seen at depth—it shows its true fluorescent colors. NOAA scientists collected this specimen during a 2004...
The fins of the frogfish are perfect for creeping around in the algae and stalking unsuspecting prey.

Frogfish Histrio histrio

The Sargassum frogfish Histrio histrio (Antennariidae) is a small but voracious predator - it can ingest animals up to it’s own size! The fins of the frogfish are perfect for creeping around in the algae and stalking unsuspecting prey. Off the coast...
This aptly named fish has two long fangs.

Fangtooth Fish

This aptly named fish ( Anoplogaster cornuta ) has long, menacing fangs, but the adult fish is small, reaching only about 6 inches (17 cm) in length. It's teeth are the largest in the ocean in proportion to body size, and are so long that the...

Glowing Dinoflagellate Meal

Watch as barnacles feed on bioluminescent dinoflagellates. Barnacles are crustaceans (like crabs, shrimps and lobsters) that secrete their shells for protection while living attached to things like rocks, harbors or boat hulls. They feed by reaching...

Climate Change Game of Tetris

Remember playing Tetris? Originally developed in 1984, the video game in which blocks of various shapes rain down and the player needs to find a way to fit them together is now ubiquitous. This TED ED video compares Tetris blocks to carbon dioxide...

Staghorn Coral

Staghorn (seen here) and elkhorn corals are listed as Threatened under the U.S. Endangered Specis Act, as their numbers have fallen catastrophically due to disease. Listed in 2006, they were the only coral species under protection until 2014, when...

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