人类为了健康美丽,通过节食减轻体重。而早在1亿2千万年前,原始鸟类为了飞上蓝天,使用更为极端的方式减轻体重——减少牙齿。中科院古脊椎所研究人员在最近一期《英国皇家学会学报》发表了一篇论文,对热河生物群中新发现的 Human health and beauty, weight loss through diet. As early as 120 million years ago, primitive birds used the more extreme way to lose weight - reducing their teeth in order to fly in the blue sky. Chinese Academy of Sciences ancient spine researchers in the recent issue of the “Royal Society Journal” published a paper on the Jehol Biota newly discovered