《国家地理》杂志报道称,此种关联的一种假说认为,醒目的黑白条纹能让斑马身体周围的空气产生对流,从而达到冷却效果。也就是说,空气在吸收阳光的黑色条纹上流动得快,而在白色条纹上流动得慢,这样就会形成冷却气流。
Indeed, preliminary observations using a digital thermometer gun showed that grazing zebras maintain a significantly lower surface body temperature (84.6 degrees Fahrenheit) than nearby antelopes that are similar in size but have brown coats (90.5 degrees).
的确如此,数字式测温枪的初步观察结果表明,牧场上斑马的体表温度(84.6华氏度)与附近同等大小、褐色毛皮的羚羊(90.5华氏度)相比,明显较低。
But this doesn't mean the zebra stripes mystery has finally been solved, according to Larison.
但拉尔松认为,这并不意味着斑马条纹的谜底被最终揭开。
"We need to give all the hypotheses for zebra striping serious consideration," she said in the email. "We don't see any of the hypotheses as being out of the running yet and there is no reason to think there has to be just one answer. Multiple functions of a trait are not unheard of."
“我们需要严肃对待关于斑马条纹的所有假说,”她在邮件中说,“目前尚无法断定哪一条假说说不通,也没有任何理由表明答案只有一个。一种动物的特性具有多种功能的例子此前也并非未听说过。”
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2020-09-15
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