More than 3.5 billion years ago, the Earth was not the hospitable world we know today. The atmosphere lacked oxygen, the seas ...
A rare fossil discovery in Ethiopia has pushed the known range of Paranthropus hundreds of miles farther north than ever before. The 2.6-million-year-old jaw suggests this ancient relative of humans ...
“Our results push back the association of T. pallidum with humans by thousands of years, possibly more than 10,000 years ago ...
An ancient DNA analysis of a 5,500-year-old human skeleton reveals that an ancestor of the bacterium that causes syphilis was ...
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