Ocypode sp.

Have you ever taken an evening stroll on the beach and seen a ghost? It probably was a ghost crab, not a spirit from another world. This crustacean’s name comes from its ability to blend in with sand, then alternately “appear” and “disappear.” These quick crabs can run up to 10 miles per hour. Their speed, camouflage and “periscope” eyes that see 360º provide protection from predators like gulls, dogs and children. At night they gather food and go to the sea to wash water over their gills for oxygen, then return to burrows at dawn.

Cool Link:

The Ghost Crab - information and pictures of a ghost crab emerging from its hiding place in the sand.

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