Meet "Ardi," an artist's conception of a 4.4 million year old proto-human, derived from fossils unearthed, reconstructed (using computers, often from very small fragments) and studied, as announced last week. This ancestor is a million years older than those studied before, and quite different--suggesting a very different evolutionary history for humans and other primates than previously believed. It suggests to at least one anthropologist that human evolution "went social." Of the the articles I read, this one at the Wall St. Journal seems most cogent, but the NY Times has a different emphasis, and the Guardian offers video and audio as well.
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