【早起晨读】0408-我们的脑子为什么这么大？

Wake up, get up, and level up.

今日签到打卡句：When the world says “Give up”, hope whispers, “Try it one more time.”

Why are our brains so big?

The reason why some primates have bigger brains than others is often said to be their social behaviour. That is, primates that move around in bigger and more complex social groups require bigger brains in order to efficiently manage all of those social relations.

This theory has been around for over two decades, and is called "the social brain hypothesis".

primates   [praɪ'meɪti:z]

decade   [ˈdɛkˌed, dɛˈked]

vicennial   [vaɪ'senɪrl]

centenary   [senˈtenəri]

hypothesis   [haɪˈpɑ:θəsɪs]

灵长类动物

lemur   狐猴

baboon   狒狒

gibbon   长臂猿

ape   猿

monkey   猴

pongo   类人猿

orangutan   猩猩

loris   懒猴

音频来源：Joanna

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