It's the next annihilation of vast numbers of species. It is happening now, and we, the human race, are its cause

The whole story is about change. We are very lucky that the earth's history is recorded in fossilized remains. And we can see the changes. Unfortunately, there will always be gaps in our knowledge, but there is no doubt that we and everything living today has evolved.

Paleoanthropology is not a science that ends with the discovery of a bone. One has to have the original to work with. It is a life-long task.

Echoing the criticism made of his father's habilis skulls, he added that Lucy's skull was so incomplete that most of it was 'imagination made of plaster of Paris', thus making it impossible to draw any firm conclusion about what species she belonged to.

For fossils to thrive, certain favorable circumstances are required. First of all, of course, remnants of life have to be there. These then need to be washed over with water as soon as possible, so that the bones are covered with a layer of sediment.

I have been raised to believe in freedom of thought and speech. If a minority wishes to accept that position it's their right. What I fear is that this minority may seem to be larger than it truly is. What is strange is that there are still people who believe the world is not a globe.

My father used to say that, through culture, humans effectively domesticated themselves.