Today's Catch

An Illustration of small tentacled fossils.

Ancient Entoproct Community

For a long time, scientists thought that some small tentacled fossils were early ancestors of jellyfish. But a new study has found that these ancient animals are actually related to an entirely different group of animals : the entoprocts, which are...

Parasitic Barnacle on a Crab

This swimming crab ( Liocarcinus holsatus ) has a parasitic barnacle rooted in its reproductive system. This invasion cuts off all reproduction for an infected crab and can even cause a male crab to change behavior — males don't normally take care...
Japanese scientists videotaped this female giant squid, alive, at the water's surface

Caught on Video: Giant Squid

In 2006, this female giant squid attacked bait suspended beneath a Japanese research vessel off the coast of Japan in the Ogasawara Islands . This screenshot resulted when the research team pulled the 7-meter (24-foot) squid to the surface and...

Parasitic Worms in a Fish

The whitish spots on this fish are individual parasitic trematode worms. Trematodes have complicated life cycles that usually involve multiple hosts -- often starting in a snail and then moving on to other hosts, such as fish, birds, and mammals (...
Tuna in a warehouse waiting to be sold at market.

Tuna at Tsukiji Fish Market

Buyers examine tuna lining the floor of Tsukiji Fish Market in Tokyo, Japan. Ounce per ounce, tuna is one of the most valuable varieties of seafood. In 2012, a single 593lb bluefin tuna sold for $736,000 in a Japanese market. Not surprisingly,...
A deep-water larvacean (aka “sea tadpole”) inside its home.

Deep-Water Larvacean, or “Sea-Tadpole”

In the icy waters of the Arctic , a deep-water larvacean (aka “sea tadpole” because it looks like a tadpole) drifts through the water in its 'house.' This house is made of protein and creates almost a shell around the larvacean and helps to filter...

Inside a Sardine Tornado

A tornado of sardines swirls around diver and photographer Erwin Poliakoff in the Philippines. Sardines are small fish that gather in large schools, a behavior that defends them against predators. As they travel across oceans and up coastlines to...

Plastic Bits from the Gyre

Plastic does not biodegrade; it photodegrades, which means that sunlight breaks it down into smaller and smaller pieces. These bits of plastic and plankton were collected during a 3:00 am manta net tow, and are just a sample of the plankton-like...
A close up view of Phoenix and the rough patches of skin known as callosities that are found on all North Atlantic right whales.

Phoenix’s Callosities

A close up view of Phoenix and the rough patches of skin known as callosities that are found on all North Atlantic right whales . These callosities are inhabited by small amphipods called whale lice and they can be used to identify an individual...
This black coral is more than 4,200 years old. Named for the color of their skeletons, black corals come in many colors.

How old is black coral?

This deep-sea black coral from Hawaii ( Leiopathes sp. ) is more than 4,200 years old. Black corals are named for the color of their skeletons, but the external tissues of black corals come in many bright colors. Explore more in the multimedia...

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