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 world slept only 6.5 hours a night.
地球是一个奇迹摄影|德国将国家地理中文网设为星标方能收到正常推送摄影师英戈·阿恩特(Ingo Arndt)让助手在巢穴上方挥舞一块布,特意来引起它们的应激反应。成群的蚂蚁会喷射由腹部末端毒腺产生的甲酸,以抵御威胁。|国家地理图片集50年前,当野生动物摄影师英戈·阿恩特(Ingo ...
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