Today's Catch

Can You Spot the Seahorse?

It's a pygmy seahorse ( Hippocampus bargibanti ), found in Indonesia's biodiverse Coral Triangle and one of the smallest seahorse species in the world! They can change colors like a chameleon to blend into their environment. This helps to protect...

The First Filter Feeder

Today, filter feeders like clams, sponges, krill, baleen whales, fishes, and many others fill the ocean, spending their days filtering and eating tiny particles from the water. But when did the first filter feeder evolve? The first known filter...
A pair of sea butterflies float in the Arctic ocean.

A Pair of Sea Butterflies

This pair of sea butterflies ( Limacina helicina ) flutter not far from the ocean's surface in the Arctic. Sea butterflies are a type of sea snail, but instead of dragging themselves around the seafloor with a muscular foot, they flap their adapted...
A nudibranch showing a closeup of their fleshy, tentacle-like growths, called cerata.

Aeolid Nudibranch Defense

This nudibranch has a few tricks up its sleeve: it steals jellyfish tentacles to use as weapons against its own enemies. How does it do this? Many fleshy, tentacle-like growths, called cerata (singular: ceras), project off its back. After the...

Deep-Sea Dragonfish

The deep-sea dragonfish ( Stomiidae ), also called the barbeled dragonfish, uses it's fang-like teeth to grab prey in its deep-sea environment . Like other deep-sea organisms, dragonfish have bioluminescent photophores and other adaptations that...
A photo of a swimming Protanguilla palau, the newly discovered genus and species of eel

Palauan primitive cave eel (Protanguilla palau), a 'living fossil'

The Palauan primitive cave eel ( Protanguilla palau ) has an evolutionary history that dates back some 200 million years . Because of this and the fact that it has retained some primitive features, scientists are recognizing it as a 'living fossil...

Southern Elephant Seal, Gold Harbour, South Georgia

The largest of all seal species, the southern elephant seal ( Mirounga leonina ) is found in chilly Antarctic and Subantarctic waters. The male seals dive as deep as 1,430 meters (over 4,600 feet) and stay at depth for up to two hours. “The southern...

The Making of a Marlin

Watch how a group of 9 staff members and 487 volunteers from Washed Ashore , a non-profit in Bandon, Oregon, made "Flash" the marlin―an enormous sculpture that weighs in at 850 pounds. The work of art is made only from pieces of plastic that have...

Mouth Agape Comb Jelly

A beroid ctenophore lunges toward prey with its mouth wide open. Beroid comb jellies don't have tentacles to catch prey: instead, they can open their mouths and snap them shut tight to trap prey inside. And one of their main prey items is other...
An image of collections storage at the Smithsonian National Museum of Natural History.

Smithsonian Fish Collections

There are about 4 million specimens in the fish collection housed at the National Museum of Natural History . It is the largest of its kind in the world. Learn how these collections helped to solve an international scientific mystery .

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