The graduation photo of An Yongrui, a paleobiology major at Peking University, has become an internet sensation after he recently posted it online. 近日,北京大学古生物学专业毕业生安永睿在将自己的毕业照发布到网上之后,...
Science and Technology Palaeontology Splay-footed, not flat-footed 科技 古生物学 不是扁平足而是八字足 A new fossil shows that evolution does not always mean change 新发现的化石显示,进化并不总意味着变化 WHEN a coela...