卧虎藏龙

Chinese-led team uncovers oldest known body fossils of ringed worms_蜘蛛资讯网

animal group by more than 10 million years to 535 million years ago, according to the Nanjing Institute of Geology and Palaeontology (NIGP), the Chinese Academy of Sciences.The findings come from fos

aired appendages, or parapodia, which in modern relatives are used for movement and respiration.Under high-powered microscopy, researchers observed that the appendages in these ancient species ended i

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发布时间：03:33:09