Crab

ocean · crustacean · armored

Built-in armor. Crabs have a heavy, hard shell that protects their soft bodies like a suit of armor.

Sideways runners. Crabs are famous for scuttling sideways, which lets them move quickly to dart into rocky hiding spots.

Crabby on repeat. The crab body shape evolved multiple separate times in nature through a process scientists call carcinisation.

Decapod family. Crabs are decapod crustaceans, meaning they belong to the same big group as lobsters and shrimp, with ten legs.

Hidden tail. Unlike a lobster, a crab tucks its tail segments tightly under its body, keeping them out of sight.