书城外语课外英语-动物亮丽风景线(双语版)
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第7章 独行者熊

Bears usually live alone unless they are mothers with cubs.Each bear claims an area,or territory,as its own.It chases other bears away.A bear stands up on its hind legs to look frightening.It uses its claws to slash at enemies.

Bears roam over large areas looking for food.They need to eat a lot of food for energy.Most bears can climb trees to find honey in a bee’s nest or other food.Polar bears and brown bears are too heavy to climb trees.These bears are the biggest of all the bears.They can weigh up to 1,760pounds (800kilograms).

Winter Sleep