You may take them for granted, but your teeth are a marvel. They break up all your food over the course of your life while being strong enough to withstand breakage themselves. How do they do it? Peter S. Ungar traces the evolution of mammalian molars from primitive cone-like structures to the myriad forms of today’s species, from lions to cows to people.

你可能认为它们是理所当然的，但你的牙齿是一个奇迹。它们在你的一生中分解了你所有的食物，同时又足够强大，可以抵御破损。它们是如何做到的呢？Peter S. Ungar追溯了哺乳动物臼齿的进化过程，从原始的锥状结构到今天的无数物种的形式，从狮子到牛到人。

视频来源：https://www.bilibili.com/video/BV13q4y1g75s?p=2&vd_source=1c9af8b86fed5defb2e7e4fff088118e