Horseshoe crabs are rather extraordinary creatures. They're essentially unchanged for 450 million years, and look like it: https://en.wikipedia.org/wiki/Horse

Horseshoe crabs are rather extraordinary creatures. They're essentially unchanged for 450 million years, and look like it: https://en.wikipedia.org/wiki/Horseshoe_crab https://en.wikipedia.org/wiki/Horseshoe_crab The roe is edible too, but has to be prepared very carefully as it can contain the same poison (tetratodoxin) as blowfish/fugu: https://praneesthaikitchen.com/2013/01/28/horseshoe-crab-egg-salad-recipe/ https://praneesthaikitchen.com/2013/01/28/horseshoe-crab-egg...