27 February 2009
Vol 323, Issue 5918

About The Cover

Cover image expansion

COVER 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. See page 1197). Image processing in RapidformTM: Matthew Bennett/ Bournemouth University