Goosebumps are a feature we share with lots of animals that didn't lose their body hair, and even hiccups trace back to the brains of fish and tadpoles, a brain signal they use to squeeze water through their gills.
鸡皮疙瘩
我们和很多有体毛的动物的共性,甚至打嗝 都能追溯到鱼类和蝌蚪的大脑,这
脑信号过去常用于把水从腮中挤出来。