The skin of the ear is very thin, and the blood vessels are very close to the surface. An elephant’s ears can cool its body by up to 5° Celcius (that’s 9° Farenheit)! An African elephant’s ears can grow to be six feet long and four feet wide. A lot of personality can be expressed through the ears, too, and elephants use ears to communicate visually. For example, flapping their ears can signify aggression or joy, depending on their mood.
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