Stone tools are fossilized human behavior.

I put a bullet into the back of the crocodiles neck just behind the head, thus killing it. If a crocodile is hit in any other part of its anatomy it disappears into the water and is irrecoverable.

South Africa had a long record of studies in prehistory, going back to the end of the last century.

Raising funds for my fourth expedition proved to be very difficult.

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!

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

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.