Perhaps it’s the biggest question science has left to answer, how did life begin? Now, molecular biologists in Cambridge university have discovered tiny molecules of RNA which they say might provide some clues. Science journalist and author Philip Ball explains what we know and whether we’ll ever find the origins of life on earth.
"Our specialist archaeology team and contractors have carefully excavated numerous sites and have shown care and respect throughout this work."
，更多细节参见搜狗输入法2026
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