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

To save an animal's life in order that it may suffer indefinitely is something I would never condone.

Sometime during the many millions of years that have elapsed since mammalian faunas came into existence, some sort of island crossed from West Africa to South America.

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.

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.

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

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.