进化将流眼泪演变成一种可以用来表达复杂情感的方式,仅此一点就足以将人类与其他动物,甚至与灵长类动物区别开来。那么,人类究竟为什么会哭泣?生病的宝宝在夜间大声啼哭;年轻女子不相信自己的丈夫已在车祸中遇难而绝望哭泣;眼泪在一个成年男子的眼眶中打转,他正在看电影《泰坦尼克》;婚礼上,新娘的母亲无法控制地呜咽……哭泣,是我们最熟悉,也最令我们感到神秘的一种人类行为。尽管所有可以移动眼球的动物都拥有瞬膜或内眼睑,都会流泪,但唯独我们人类将眼泪演变成一种可以用来表达复杂情感的方式,仅此一点就足以 Evolution evolves tears into a way to express complex emotions that alone is enough to distinguish humans from other animals, even from primates. So why do people cry? Sick baby crying out loud at night; Young woman does not believe her husband has been crying in despair in a car accident; Tears spinning in the eyes of an adult man who is watching the movie “Titanic” ; Wedding, the bride’s mother sobbed uncontrollably ... crying, we are most familiar, but also the most mysterious to us a human behavior. Although all animals that can move their eyes have tears or inner eyelids, all of us can shed tears as a way to express complex emotions, which alone is enough