New reconstructions of ancient proteins have provided clues to the habitat and origins of life on Earth. The resurrected protein is thought to have existed almost four billion years ago in single-celled organisms linked to the earliest ancestor of all life. via Pocket http://www.bbc.co.uk/news/science-environment-23591470#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
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