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人们走进动物园的时候,能在很远的地方看到斑马站在那里,因为它身上长有黑白相间的条纹,非常醒目。你知道这些条纹有什么用吗? 斑马是非洲热带草原的特产动物。过去,一代又一代的老师传授下来的观点是这样说的:黑白条纹是适应环境的保护色。在阳光和月色的照射下,斑马的条纹使它不容易暴露目标,能躲避天敌的攻击和伤害,起到保护自己的作用。这种解释对不对呢? 最近,一位专门研究热带动物的美国专家对这种观点提出了挑战。他认为在热带草原上,周围环境全是绿色的,斑马的黑白条纹一目了然,无论是白天还是夜晚,都不能起到隐蔽的作用。相反。天敌很容易发现它们这种特殊的外衣。
When people walk into the zoo, they can see the zebra standing there very far away, because it has black and white stripes and it is very eye-catching. Do you know what these stripes are for? Zebra is a specialty animal in the African savannah. In the past, the idea passed down from generation to generation of teachers is to say: Black and white stripes are the protective colors to adapt to the environment. Under the sunlight and moonlight, the zebra stripe makes it difficult to expose the target, and it can avoid the attacks and injuries of natural enemies and protect themselves. Is this explanation right? Recently, a U.S. expert specializing in tropical animals challenged this view. He believes that in the savannah, the surrounding environment is all green, zebra black and white stripes at a glance, whether it is day or night, can not play a hidden role. in contrast. It is easy for natural enemies to discover their special coat.