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Ancient T. rex and Mastodon Protein Fragments Discovered, Sequenced（图）
protein fossil bones
2007/4/16
April 12, 2007，Scientists have confirmed the existence of protein in soft tissue recovered from the fossil bones of a 68 million-year-old Tyrannosaurus rex (T. rex) and a half-million-year-old mastodo...
March 5, 2007，WALNUT CREEK, CA--On the road to making biofuels more economically competitive with fossil fuels, there are significant potholes to negotiate. For cellulosic ethanol production, one majo...