Crabs

Crabs are crustaceans that live underwater and walk sideways. They are known for being very edible and are considered by many to be the world's "deadliest catch", though a certain atomically mutated fire-breathing lizard monster might disagree with that.

Films

 * Attack of the Crab Monsters
 * Land of the Lost
 * Leviathan
 * Yog: Monster from Space

Television

 * Fear the Walking Dead: Ouroboros - Crabs stuck to an infected.