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Horseshoe Crab

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Horseshoe crab - Limulus polyphemus

Horseshoe crab - Limulus polyphemus

Photo © ShaneKato / iStockphoto.
The horseshoe crab is closer kin to spiders, mites and ticks than it is to other arthropods such as crustaceans and insects. Horseshoe crabs live in the Gulf of Mexico and northward along the Atlantic coast of North America.

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