A set of footprints found in 1976 in Laetoli, Tanzania - just next door to the oldest known human tracks - were initially dismissed as belonging to bears. Now, a study from Dartmouth takes a new look at the prints and concludes that they were ancient human tracks.  “Given the increasing evidence for locomotor and species diversity in the hominin fossil record over the past 30 years, these unusual prints deserved another look,” explained study lead author Professor Ellison McNutt. Professor McNutt is a specialist in locomotion,...