“While the human penis functions primarily to transfer sperm, our result suggests its unusual large size evolved as a sexual ornament to attract females rather than purely as a badge of status to ...
The observation of homosexual behaviors in animals has long raised questions about their origins and functions. A recent ...
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 ...
A partial skeleton dating back more than two million years is the most complete yet of Homo habilis, one of the earliest ...
“Hundreds of fossils representing over a dozen species of Ardipithecus, Australopithecus, and Homo had been found in the Afar ...
A rare Homo habilis skeleton from Kenya reveals how early humans moved, climbed, and adapted more than two million years ago.