The earliest footprints showing evidence of modern human foot anatomy and gait have been unearthed in Kenya.

The 1.5-million-year-old footprints display signs of a pronounced arch and short, aligned toes, in contrast to older footprints.

The size and spacing of the Kenyan markings - attributed to Homo erectus - reflect the height, weight, and walking style of modern humans.

The findings have been published in the journal Science.