They were searching for human fossils in sediments dating back 1.5 million years, but instead they found the footprint of a ...

About 1.5 million years ago, individuals of two different species in the human evolutionary lineage trudged on a muddy lakeshore in northern Kenya, leaving behind intersecting trackways alongside the ...

Human footprints stir the imagination. They invite you to follow, to guess what someone was doing and where they were going.