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

Primates need good nutrition, to begin with. Not only fruits and plants, but insects as well.

For three million years we were hunter-gatherers, and it was through the evolutionary pressures of that way of life that a brain so adaptable and so creative eventually emerged. Today we stand with the brains of hunter-gatherers in our heads, looking out on a modern world made comfortable for some by the fruits of human inventiveness, and made miserable for others by the scandal of deprivation in the midst of plenty.

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.

In the area of species protection, we should concern ourselves with what is right as opposed to what might be easier, or popular in the short term.

I ... believe the study of human history remains important and should not be banned. We should ensure that any archaeological studies are conducted with sensitivity and respect. Reburying relics, in my view, does not help anyone go anywhere.

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