North American Biodiversity - Nina Zitani
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Remains of a Horseshoe Crab

Horshoe crabs are marine arthropods that are more closely related to spiders than they are to crustaceans (crabs, shrimps, etc.). During the breeding season they migrate to shallow coastal waters and produce thousands of eggs which are a major food source for migratory birds. Atlantic horseshoe crabs are in decline and their population is threatened, which in turn threatens the birds that depend on them for food. Major threats to horseshoe crabs include over-harvesting (for medical applications), overfishing (for bait to catch eel) and shoreline development. Delaware Seashore, Atlantic coast, USA ("Limulus polyphemus").

atlantic horseshoe crablimulus polyphemuschelicerataarthropodbeachdelawareatlantic oceanseashoreunited states of americabiodiversitynorth america