This two-horn box crab is able to crack and peel open snails' shells using a sharp "tooth" on its right claw to cut open shells and long, slender "fingers" on the left claw to yank out its prey.



The distinctive hexagonal shell, long legs, and claws of this delicate-looking feather star crab help it blend in with its host, the crinoid or feather star.



This spider crab lives among Espiritu Santo's soft corals, camouflaging itself with colors and spiny, coral-like projections on its legs and body.



With hidden claws and hairy legs, this spiny spider crab looks more like an arachnid than a crustacean. Its large spines, pointing in all directions, help deter would-be predators.



The boldly patterned pom-pom or boxer crab likes to carry live sea anemones in its claws, brandishing them in defense when it feels threatened.



The hooked hairs on this spider crab's legs serve as a natural form of Velcro. The crab attaches red, calcium-rich algae and other objects to itself for camouflage.



The furry-looking, slow-moving common hairy crab traps sediment in its long, mop-like hairs, allowing the creature to blend in with its environment.



A crab that's all elbows: the standout feature of the unpolished elbow crab is its extra-long, thin, jointed claws. Its uneven body surface allows it to blend in well with its dead-coral habitat.



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.

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