Question

dogs generally hangs out their tongue in summer. why?

Answer 1

Dogs have high body temperature .To regulate the body temperature dogs hang out their tongue in summer. Generallymammals regulate their body temperature by sweating. Dogs have fewer sweat glands on their body so it is difficult to cool their body by sweating. By panting they cool theirbody.

Answer 2

because the saliva of his tongue evaporates and we know evaporation causes cooling