ELEPHANTS' big ears can be almost 2m long and almost as wide, but helping elephants to hear is only one of their functions.
They also help to make elephants look bigger when they attack or have to defend themselves.
Ears are also useful fly repellents - waving the unwanted creatures away.
But the most important thing that elephant ears do is to keep elephants cool.
When elephants wave their ears around the blood inside cools down. - bigsiteofamazingfacts.com