Why do animals have tails?
本文作者： TEENS
Monkeys and other primates (灵长类动物) have two types of tails. The first type of tail helps animals keep their balance (平衡) as they swing (荡), climb and jump through forests. The other type of tail can help the animals grab (抓住) things. Animals can use their tails like an extra (额外的) arm. For example, some monkeys can grab tree branches with their tails. |  |
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