Do u know that a crocodile can’t stick its tongue out? yeah, the crocodile’s tongue has actually attached to the bottom of its mouth by a membrane.But the tongue is not useless.The crocodile’s tongue has salt glands, that means that a crocodile’s tongue performs excreting salt.They also have a hard time releasing salt through their skin & they use its tongue to get rid of salt and keep from getting dehydrated.