Few sights in the animal kingdom are as immediately striking as an African elephant spreading its vast ears in the midday heat. Those enormous panels of skin — as tall as a grown adult and wider than a dinner table — are in constant, subtle motion, and that motion is doing a great deal of work.
Ear flapping is one of the most important and multifunctional behaviors in an elephant’s repertoire. It regulates body temperature, communicates emotional state, and signals threat levels to other elephants and potential rivals alike. Though you might not know it by looking at them, elephants are smart and expressive animals with a rich set of mannerisms that science is only beginning to fully understand.
So why do elephants flap their ears? The short answer is: thermoregulation, communication, and display — often all at once. Let’s look at each in detail.