Elephants, the largest land animals in the world, have a huge heart. Their heart weighs between 26 and 47 pounds! They actually have a life expectancy similar to humans - over 70 years. Also like humans they can laugh and have a pretty good memory although they can't jump. They are also very sociable and are very sensitive animals - they know when other elephants are sad or happy. As a 'hello' they wrap their trunks together as a display of affection. In total, their trunks have around 40,000 muscles! Elephants have particularly crafty ears. They have large, thin ears - they're made up of a complex network of blood vessels which work to regulate the elephant's temperature. The Elephants circulate blood around their ears to cool them down.
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