Blue crab.
I recently got to see two of these in the wild, one in a spring and another dead on a beach (probably eaten by birds)
Fun? fact: crabs are really awful at clotting their blood so if they obtain an injury to a limb they will drop it in order to avoid blood loss. This works because a membrane covers the spot where the limb detached. They can then regrow their missing limb or limbs during the molting process.













