1.5 Million-Year-Old Fossil Footprints‏

"Ancient footprints found at Rutgers’ Koobi Fora Field School show that some of the earliest humans walked like us and did so on anatomically modern feet 1.5 million years ago." -- Rutgers Also see Science and Wired Science and Pharyngula.

Images Credits: Professor Matthew Bennett, Bournemouth University, UK
Optical laser scan of early hominin footprints at Ileret, Kenya, color-rendered to illustrate depth; reds indicate areas of high elevation, blues lower elevation. The footprints are 1.5 million years old and were probably made by Homo ergaster/erectus. Two right footprints and a partial left are visible along with a range of animal prints.