Science & Nature: Elephant ___ Lacks Sweat Glands, Therefore Body Heat Is Released By Other Means. Elephants Stay Cool By Flapping Their Ears. Blood Entering The Heavily Veined Ear Is Cooled By Breezes Caused By Flapping And Return To The Body 9 Degrees Cooler.When Elephants Arrive At A Water Hole They Will Often Wet Their Ears Before They Drink