Trying to cool down on a very hot day!

When a crocodile is basking, or laying in the sun, it is raising its body temperature. When it wants to cool back down it can move out of the sun into the shade or a body of water. Another option for the crocodile is to open its mouth. This behavior is a way for the crocodile to release the heat from its body.
This croc still had its mouth open an hour later when we were returning from our cruise on the river!