Olduvai Gorge gives us one of the most remarkable stories of the past-the last chapter of the Earth's history, starting at the present day, right away back 2 million years.

Stone tools are fossilized human behavior.

Most Kikuyu marriages were arranged on the basis of what is described by anthropologists as the bride price.

The trip I made to Angola to study the prehistoric contents of the gravel beds as a means of deciding the age of the deposits and their economic potential was the first time prehistory had ever been used for such a purpose.

There is tragic evidence to show that the paintings at the French prehistoric art sites are deteriorating.

I saw what looked like another fallen tree in front of me and put my foot on it to cross over. At that moment it reared up in front of me-the biggest python I had ever seen!

Colonial governors and senior civil servants are not easy people to argue with, and I was not popular because of my criticism of the colonial service in Kenya.