Anatomy of the Horseshoe Crab

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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.

Living fossils, horseshoe crab fossils were found from 450 million years ago.

Atlantic horseshoe crab (Limulus polyphemus), by Brandon Woo

Atlantic horseshoe crab (Limulus polyphemus), photo by Brandon Woo

Giant horseshoe crab but the caption is hilarious!!!!

Kid:Mommy what is this? Mom:A horseshoe crab. Kid:Is it a horse or a crab? Mom:(nods head in disappointment)

Chinese horseshoe crab , King Crab , Japanese horseshoe crab(Tachypleus tridentatus)カブトガニ

Chinese horseshoe crab , King Crab , Japanese horseshoe crab(Tachypleus tridentatus)カブトガニ

Older Than Dinosaurs

Older Than Dinosaurs

This living fossil is 200 million years older than the oldest dinosaurs, its been on the planet for longer than there have been trees. A true wonder of the natural world.

How Do I Dry Out a Horseshoe Crab?

How to Preserve a Dead Horseshoe Crab

Horseshoe crabs (Limulus polyphemus) are invertebrates that aren't really crabs, despite their naming. Spiders are actually closer kin to horseshoe crabs than other crabs are, strangely enough.

happyarthropod: Mesolimulus walchi  This extinct horseshoe crab-like arthropod lived around 150 million years ago. Other fossils indicate that species remarkably similar to modern horseshoe crabs lived 300 million years ago.  Photo: Raimond Spekking

Mesolimulus Walchi - This extinct horseshoe crab-like arthropod lived around 150 million years ago. Other fossils indicate that species remarkably similar to modern horseshoe crabs lived 300 million years ago.

Horseshoe Crab Door Knocker

or paint a real one gold and use as decoration on table or shelf

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