Crawdaunt molts (sheds) its shell regularly. Immediately after molting, its shell is soft and tender. Until the shell hardens, this Pokémon hides in its streambed burrow to avoid attack from its foes.
Crawdaunt has an extremely violent nature that compels it to challenge other living things to battle. Other life-forms refuse to live in ponds inhabited by this Pokémon, making them desolate places.