也就是说，所有灵长类动物，除了人类，人类的巩膜是他们的三倍大，这一特征使得人类很容易跟随他人注视的方向。
All, that is, except humans, whose sclera is three times as large, a feature that makes it much easier to follow the direction of someone else's gaze.
黑猩猩也会跟随别人的目光，尽管那个人的眼睛是闭着的，只是靠注视别人的头部。
Chimps will follow a person's gaze, but by looking at his head, even if his eyes are closed.
黑猩猩也会跟随别人的目光，尽管那个人的眼睛是闭着的，只是靠注视别人的头部。
Chimps will follow a person's gaze, but by looking at his head, even if his eyes are closed.
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