A nurse shark can lie on the seabed during the day and hunt at night. It draws food into its small mouth by suction, a useful skill when a fish or crustacean is tucked into a crevice.
A nurse shark can lie on the seabed during the day and hunt at night. It draws food into its small mouth by suction, a useful skill when a fish or crustacean is tucked into a crevice.