书城外语课外英语-动物亮丽风景线(双语版)
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第28章 河马个体与群体

Hippos live in herds of 15or more animals.During the day,they like to crowd together.They like to swim or wallow in the mud with their bodies touching.At night,however,they split up.They go out in search of food alone.For a hippo,eating is private.

Can Hippos Hurt You?