Researchers Unveil More of the Devil’s Tricky Fossils

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Photo: Courtesy of Science

The science world is all atwitter with the long-awaited public debut of Ardi, a human ancestor that, 4.4 million years ago, lived mostly in trees but also enjoyed walking upright down on the ground sometimes. Ardi represents "a major breakthrough in the study of human origins," shedding light on our evolution from straight-up, poop-throwing monkeys to the occasionally intelligent beings we are today. [WP]