Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail", usually hidden entirely under the thorax. They live in all the world's oceans, in freshwater, and on land, are generally covered with a thick exoskeleton, and have a single pair of pincers. They first appeared during the Jurassic Period.

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Crab deaths on UK coast may be caused by unknown disease, finds report

Senators Seek Disaster Declaration After Crab Season Cancelled

A Planned Restart of a Crab Harvest Pits Conservation Against Industry

Ancient Crab Was a Deadly-Looking Weirdo 'Armed' With Spikes And Blades

Alaska snow crab season canceled as officials investigate disappearance of an estimated 1 billion crabs

Ancient and bizarre 'innovation crab' from China had eyes on stalks, spike-studded arms and a tail full of 'blades'

New Species of Ordovician Horseshoe Crab Unearthed in Canada

The world could create more sustainable batteries with an unusual source: crustaceans. In a paper published this week in the journal Matter, researchers say they have made a biodegradable battery with a substance found in crab and lobster shells.

A sustainable battery with a biodegradable electrolyte made from crab shells

Battery made of crab shell and zinc is rechargeable and biodegradable

Scientists Discover Small Microscopic Crab-Like Creatures In Scottish Caves

Fiddler crab eye view inspires researchers to develop novel artificial vision

Whale sharks may be the world’s largest omnivores. New research shows that the floating macroalgae, Sargassum, is a significant source of food for the species which has previously been observed eating plankton, including krill, copepods, crab larvae, tiny squid or fish.

Changes in oceanographic fronts affect the gene flow among marine crab populations

Can you spot the crab in this photo? (Hint: It's under the fuzz.)

'Emerging super Crab' might be the most powerful pulsar ever discovered

'Emerging super Crab' might be the most powerful pulsar ever discovered

‘Fluffy’ crab that wears a sponge as a hat discovered in Western Australia | Australia news

This sideways-scooting robot crab is so tiny it fits through the eye of a needle

This 'Crab' Is The Smallest Remote-Controlled Walking Robot Ever Built