This is a Horse Shoe Crab

This Horse Shoe Crab is an arthropod that live in the shallow parts of  the ocean. They sometimes come to shore for mating. They are closely related to the spider and scorpion family.  They look crustaceans , but are actually chelicerata. They have five pairs of legs for walking. They eat worms and mollusks. Females grow larger than males. Horse Shoe Crabs do not have hemoglobin in their body. Hemoglobin is the stuff that makes blood red. So their blood is not red it is blue. When they feel threatened, they move into groups to make themselves look like one bigger animal. Their hard shell protest them from being eaten. Did you know that the Horse Shoe Crab has changed remarkably little in the past 250 million years.