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This male dancing fiddler crab (Uca terpsichores) has built a sand “hood” at the entrance to his burrow, which he hopes will attract females to his humble abode—as if that big beautiful claw of his weren't enough!

Article

The Design of a Beautiful Weapon

September 2013

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A screenshot from the video showing a fiddler crab with a large claw.

Video

Claws Out: Fiddler Crabs Do Battle

September 2013

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A Caribbean hermit crab (Coenobita clypeatus) crawls on the forest floor.

Article

The Great Hermit Crab Migration

September 2012

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Anemone porcelain crabs can avoid predators by not only living in anemones but by willing loosing appendages to avoid infection.

Photo

The Porcelain Crab

July 2017