At night the animals come out, and so do human predators, like the proverbial thief in the night.
夜里出来,动物和人类的捕食者,就像格言中所说的小偷在夜间。
As the human study suggests, another reason for dolphins keeping their eyes open during sleep is that they can look out for predators while asleep.
正如人类研究表明的那样,海豚在睡觉时睁着眼睛的另一个原因是,它们可以在睡觉时留意捕食者。
"Human beings were small, defenseless and vulnerable to predators," says Barbara J. King, biological anthropologist at the College of William and Mary and author of Evolving God.
“人类对掠食者而言是弱小、无力防御与易受伤害的,”威廉学院生物人类学家、《进化之神》的作者芭芭拉。J .金说。
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