Millions of years ago, our ancestors left their calling cards to unravel a world that once was
Published: Saturday magazine, Nation newspaper 9 December 2017

We’re in the depths of the Great Rift Valley driving to Olorgesailie prehistoric site 70 kilometers south of Nairobi, the city. The landscape changes from the green of Ngong Hills to the dry scrub of the valley’s floor edged by its walls and mountains where our ancestors lived millions of years ago.
