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Why do rabbits have such enormous ears?

Kvet Forum

Well-known member
Rabbits’ jumbo-sized ears serve at least two purposes. First, they function as air conditioners, helping the rabbit maintain its normal body temperature. Rabbits easily overheat as they cannot sweat. The ears contain large blood vessels very close to the surface of the skin. As the rabbit’s temperature rises, excess body heat dissipates from those veins, cooling the rabbit.

Secondly, those big ears act like satellite dishes, swiveling every which way to intercept all the sounds around the rabbit. It’s only fair that the world’s consummate prey animal not be left completely defenseless against predators. While a rabbit has very little means of protecting itself, its keen hearing at least allows a head start on approaching predators.