Dispute over ancient Skull settled with a CAT scan

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A CAT scan of the skull of seven-million-year-old Sahelanthropus tchadensis settles a scientifc dispute because it confirms this was a hominid biped, not a quadruped ape. The latest research on the conditions needed for the formation of life four billion years ago. How learning complex skills could be done subconsciously, even while watching sport on TV. Nasa's nuclear space propulsion research, Project Prometheus, enters the design phase.