曾经在一个科普节目中听到个有趣的知识:婴儿出生时,脑子里相连接的神经只有可数的几条,比老虎和马都少,很多神经需要经过外界的刺激才能激活,而动物那些神经却是在其他器官发育之后自动退化,这就是人比动物聪明的原因。 Once heard in a popular science program an interesting knowledge: when a baby is born, the brain connected to only a few of the few nerves, less than the tigers and horses, many nerves need to be stimulated by the outside world to be activated, and those animals Nerves, however, degenerate automatically after the development of other organs, which is why people are smarter than animals.