Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

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轮岗到养猴子的时候，是我心理压力比较大的一段时间，老饲养员们总是叮嘱我一定要看紧了它们，离开的时候一定要锁好笼舍，不然它们或许会自己打开门溜走。这让我每次进出笼舍都有不小的心理负担，明明锁好了门总惦记着是不是忘了锁。