Crabs

This aptly named fish has two long fangs.

Creepy Critters: Marine Life Surfaces for Halloween

Claws, spines, spikes, tentacles, and fangs. Aliens, monsters, and ghostly apparitions glowing in the night. Marine life forms have some of the best looks for Halloween—no costumes needed. From freaky fish lurking beneath the...
Two scientists peer out into the ocean from inside the Curasub, a 5-person submersible

Diving for Crabs in the Deep Sea

In this video, Smithsonian research zoologist Dr. Martha Nizinski takes viewers with her as she searches for crustaceans in the deep sea . This work is part of the Deep Reefs Observation Project (DROP),...
A large ship flushes water from its ballast tanks while at sea

5 Invasive Species You Should Know

A ship flushes and refills its ballast task in mid-ocean to prevent marine organisms from moving from one port to another. Credit: Smithsonian Environmental Research Center Regardless of what continent you live on, the...

The Great Hermit Crab Migration

A Caribbean hermit crab (Coenobita clypeatus) crawls on the forest floor. Credit: Flickr user Island Conservation Over the last few days, a video of hermit crabs stampeding across the rocky shores of St. John...

Claws Out: Fiddler Crabs Do Battle

Male fiddler crabs each have a single super-sized claw that they use as a weapon to threaten and fight other males and as beautiful adornment to attract females. Here, see a video of two...

Searching for Crustaceans in the Deep Sea

In this video Smithsonian research zoologist Dr. Martha Nizinski takes viewers with her as she searches for crustaceans in the deep sea . She's particularly interested in finding squat lobsters , which despite their...
Juvenile plane-head filefish

A World Adrift: Life in the Sargassum

The open ocean is surprisingly barren to the naked eye. Every now and again you will encounter a school of fish and their attendant predators, but most of the life that you find is...