A pair of Atlantic horseshoe crabs, Limulus polyphemus, mate on the shallow seafloor of a bay on Cape Cod, Massachusetts. This widespread species is more closely related to spiders than to crabs. Poster #218959210
A pair of Atlantic horseshoe crabs, Limulus polyphemus, mate on the shallow seafloor of a bay on Cape Cod, Massachusetts. This widespread species is more closely related to spiders than to crabs. Poster #218959210
