Big ears to cool down!

“Elephants, too, have huge ears relative to body size, and they are also used for temperature regulation. It has been shown that blood passing through the ears of an African elephant may lose as much as 9?C of heat, a valuable cooling device in the hot African summer”. You can find about about 100 strategies like this on the biomimicry website “The skin of elephants allows them to fine-tune thermal regulation via ‘hot spots’, patches of skin that are highly vascularized” .