Walk like a man (1.5MY ago)

Footprints of Homo ergaster - the oldest human-ancestor footprints known at 1.5 million years old - look remarkably modern. The prints, left in northern Kenya in sedimentary rock, indicate an individual about 175 cm tall. Archaeologist David Braun said, "It was kind of creepy excavating these things to see all of a sudden something that looks so dramatically like something that you yourself could have made 20 minutes earlier."