【动物西游】第475集赶走狼群的山谷（五）科普知识

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This episode was published on May 26, 2019.

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把狼群赶走，又请回来，这样的事情不仅发生在罐子姐姐的故事中，更曾真的发生在美国的黄石公园，人们把狼赶走了，又请了回来。在丰富多彩的自然界，没有那种动物是多余的、应该被赶走的，保护每一种动物都很重要。

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【动物西游】第475集赶走狼群的山谷（五）科普知识

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This episode is 9 minutes long.

This episode was published on May 26, 2019.

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