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The large ears of an elephant are serve the same function as a car engine's radiator. Behind the ears there is a large amount of blood vessels. Warm blood passing through these blood vessels is cooled before recirculating throughout the elephants body. This is why elephants seem to always be moving their ears. The fanning motion helps to cool the blood.

So a more accurate question would be how they keep their ears from getting too warm.

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15y ago

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