Horseshoe Crab – Rare, Beautiful & Fascinating: 100 Years @FloridaMuseum https://www.floridamuseum.ufl.edu/100-years/object/horseshoe-crab/
Horseshoe Crab blood contains amebocyte cells, which envelop bacteria and prevent them from proliferating. Blood samples from 500,000 crabs are gathered each year to make blood tests that detect bacterial toxins. Summary Horseshoe Crab (Limulus polyphemus) From Cape May Co., New Jersey, Sept. 2
Horseshoe Crabs are like nothing else on Earth.