熊，狮子和其他动物静静地穿过森林。
Bears, lions and other animals move quietly through forests.
他们看到了狮子、大象、猴子和许多其他野生动物。
They saw lions, elephants monkeys and many other wild animals.
人类需要使用工具，因为他们没有像其他食肉动物如狮子和老虎那样锋利的牙齿。
Human beings needed to use tools because they did not have sharp teeth like other meat-eating animals, such as lions and tigers.
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