but that’s just the beginning–there are all sorts of fascinating facts about these oversized sea-dwellers. So, here is a list of amazing facts about the world’s largest spider crab.

They’re also one of the world’s largest arthropods, animals with no backbone, external skeletons, and multiple-jointed appendages. In this crab’s case, those appendages are its 10 legs.

The giant Japanese spider crab. This is the biggest crab in the world. ANDY TORBET:Their bodies can grow as big as a basketball, and their leg span, from tip to tip, can be up to 4 metres.