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Have you ever what animal has the biggest ears? Of course, it's the African elephant. We all this. Scientists know this. However, scientists have at what animal has the biggest ears for its body size. The elephant has big ears but it also a giant body. Zoologists from the American Museum of Natural History in New York City have out which animal the biggest ears relative to its body size. And the answer ... the long-eared jerboa. Not many people know about this cute, big-eared creature. It is a rodent. It in the deserts of China and Mongolia. It is a nocturnal creature, which it is active at night and during the day.

Zoologist Mary Ellen Holden the jerboa. She said its body about 10 centimetres (not counting its long tail). Its ears 3.8 to 5cm long. This its ears are 40 to 50 per cent as long as its body length. The elephant's ears just 17 per cent of its body length. Professor Holden said: "The jerboa has the longest ears for the size of its body in the entire animal kingdom." Professor Holden why some animals have large ears. They usually in very hot areas. Large ears an animal to keep cool in the heat. Their ears are large, thin and have many tiny blood vessels. The blood heat from the body into the air, which helps the animal down.

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