Crustaceans

Mantis shrimp have developed a form of ritualized combat that lets individuals compete without bludgeoning each other to death, a new study suggests.

What's white and blind and hairy all over? A yeti, of course! Or rather, a yeti crab.

They're white, blind and surprisingly hairy. They're yeti crabs.

People with aquariums have been collecting strange-looking crabs called "vampire crabs" for years. Now, researchers know where these crabs came from.

Animals tend to evolve toward a larger body size over time, and marine animals are no exception, a study suggests.

Despite booming adult populations, young lobster numbers are nearly half of what they were in 2007.

A new crayfish, Gramastacus lacus, discovered in southeast Australia's coastal lakes is one of the world's smallest examples of the species.