Crocodiles cannot stick out their tongues.

The tongues of crocodiles are fixed (and cannot move freely). They have a membrane that keeps the tongue still. So it looks like they do not have tongues.

See these Nile crocodiles with their mouths open.

Nile crocodile

Nile crocodile

Photographer: Martina Nicolls

Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM