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兔子的耳朵为什么那么长
更新时间: 2020-07-03 00:00:00  

兔子的耳朵长是为了拥有灵敏听力,这样可以躲避天敌,增加生存的几率。长耳朵还可以用来调节体温,保持身体凉快。逃跑时耳朵总是高高地竖起来,这样凉风可以冷却血管内的血液。使较凉的血流到身体各个部位,同时身体也不会出汗。

关键词: 兔子 耳朵 为什么 那么

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