PHOTOS: A World of Crabs from One Tiny Island

PHOTOS: A World of Crabs from One Tiny Island
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The coral guard crab looks like a well-muscled prizefighter. Its formidable, oversized claws are useful in defending itself against invaders trying to intrude on its coral-branch home. The crab's modified legs allow it to lock into place without budging.
—Photograph by Raffles Museum of Biodiversity Research, National University of Singapore
 
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