Crocodile's Tongue is attached to the Bottom of its Mouth

A crocodile's tongue is attached to the bottom of its mouth. A crocodile is not able to stick out its tongue  because it is attached to the bottom of its mouth by a membrane that limits its movement.The tongue of the crocodile  is typically bright yellow or orange.The tongue has salt glands which produces saline fluid.Crocodile's tongue consist of  chemo receptors which detect chemicals in water.Crocodiles have a pore opening in the surface of tongue  , a trait that separates itself from an alligator.

• Source