Why dogs hang their tongues out and pant?
As the liquid dries on your skin, it cools your skin and lowers your temperature.
Because dogs do not have sweat glands, they pant.
dogs have just a few sweat glands in their paws, so no matter how much they sweat; sweating could never cool them off.
That's where the tongue-hanging out, mouth-open dog panting comes in.
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