Living Fossil The earliest horseshoe crabs were found 450 million years ago as fossils in strata. Many think of them as crabs and crustaceans when in fact they are more related to spiders and scorpions. Under their enormous shell, their bodies also look more like those of spiders.
This is hands down the cutest, summery door knocker I've ever seen (and it's right in Boston... in Beacon Hill!)
Dune Time Arts. All the Horseshoe Crab shells have been found washed up on the beach at Davis Park, Fire Island, NY, their life force long gone from them. No Horseshoe Crabs have been harmed in the creation of these works of art!
Horseshoe Crab Printout - EnchantedLearning.com More
Ernst Haeckel JELLYFISH Art Print Vintage 1974 Book PLATE 47 and 48 Horseshoe Crabs and their Ancestors and Stalked Jellyfishes
Ernst Haeckel JELLYFISH Art Print Vintage by NaturalistCollection
anatomy of the Atlantic horseshoe crab, Limulus polyphemus, from ‘Recherches sur l’anatomie des Limules’