There are a large number of veins and capillaries that fan the large ears. As the elephant flaps the ears, the air removes the heat from the elephant. This is every much like how a fan removes heat from a heat sink of the computer processor or a car radiator.
How does an elephant use its huge ears to keep cool?
By fanning with the ears.
Reply:Like a fan,they also splash water unto themselves!
Reply:Heat is lost through the large pinna of the elephant by diffusion.
Reply:Big years mean big fan for the elephant. Also the blood flowing through the surface area of the ear also cools very fast.
Reply:.ears have a large surface area, and the blood flows to the ears and cools by radiating heat to the surrounding air and returns cooled blood to the elephant there by cooling it
Reply:The elephant uses its ears as blood cooling devices by increasing and decreasing the blood flow through them. As the tissue is thinner than the great bulk of their bodies the blood cools quicker and and it returns to their bodies it helps to cool them down.
Reply:Much like a bunny rabbit. Except elephant can fan itself.
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So is this similar to the cooling cycle that occurs in a window air conditioner with the blood playing the role of a coolant? I realize there's no change in state here (and that blood really isn't a fluid in the usual sense) but I'm curious as to whether the physics is similar in a broad sense.
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