Laetoli oldest confirmed hominin footprints famous Laetoli footprints The Laetoli footprints Early Hominid Footprints at Laetoli (Tanzania) oldest confirmed hominin footprints our common ancestors’ first bipedal footsteps oldest confirmed hominin footprints באתר לאטולי Museo Nacional de Historia Natural Smithsonian. our common ancestors’ first bipedal footsteps The Laetoli footprints oldest confirmed hominin footprints famous Laetoli footprints about 3.6 million years ago באתר לאטולי Laetoli series Footprints Human Origins Researchers oldest confirmed hominin footprints