A new study of Tanzania’s 3.6 million-year-old Laetoli footprints suggests that the human ancestor Australopithecus afarensis likely walked with a comfortable, upright gait. “To our surprise, the Laetoli footprints fall completely within the range of normal human footprints,” said David Raichen of the University of Arizona. Defendants in the Four Corners federal artifacts-trafficking sting will […]
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