Horseshoe Crab...

found on the beach at David Weld Sanctuary...

 

Adult horseshoes serve as prey for sea turtles, alligators, horse conchs, and sharks. Horseshoe crabs are also extremely important to the biomedical industry because their unique, copper-based blue blood contains a substance called "Limulus Amebocyte Lysate", or "LAL"

 

Done