If you have ever looked closely into a rockpool along the U.K. coastline, you may have been lucky enough to find a tiny hermit crab scuttling about. What you might not realize is that hermit crabs are ...

Carcinization is the separate, five-time evolution of crabs. Parallel evolution isn’t unheard of by any means, but crabs have done it a lot. Their repeated similar evolution makes them interesting to ...

When filmmakers slipped a robot crab into a real crab aggregation, they expected curiosity. What they captured instead was a ...

Four new species of freshwater crab, bright purple in colour, have been discovered in the biologically diverse but ecologically-threatened Philippines, the man who found them said Saturday.

Hermit crabs have the most chromosomes of any animal, with 254. Chromosomes carry genetic information in the form of DNA. Genes located on autosomes determine the inheritance of physical traits. Sex ...

WASHINGTON — The blue crab population in the Chesapeake Bay is at its second-lowest number in recorded history, dropping by 25% since last year. Still, an assessment of two states' surveys' results ...