Why do the dogs keep thier tougue out ?

Question

Why do the dogs keep thier tougue out ?

Answer 1

Dogs do not have sweat glands.It is one way they regulate their body temperature. The heat is transferred from the wet tongue to the air.

Answer 2

They are thinking about a pretty dog of the opposite sex.

Answer 3

because the only place on their bodies they have sweat glands are on the soles of their feet. when they get hot they will pant instead

Answer 4

to keep them cool