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.

To me it's a question of being able to look backward and give the present a root... To give meaning to where we are today, we need to look at where we have come from.

It occurred to me that if I did not handle the crash correctly, there would be no survivors.

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.

Along the borders to Ethiopia and Somalia, anarchy reigns, the police and military have retreated quite some distance.

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

Climate change: We have never faced a more critical time on our planet