However much you know giraffes, to see one in the wild for the first time feels prehistoric.

I was the sort of person who didn't care about hairdressing and clothes and parties and boyfriends. I really wanted to be in the wild.

Chimpanzees are incredibly intelligent. They can learn more than 400 signs of American Sign Language. They have memories for spatial distribution, like numbers on a TV screen, way better than ours. You come onto the emotions: happiness, sadness, fear, and despair - all the things for which I was accused of being anthropomorphic when I ascribed them to chimpanzees.

The cheapest and most efficient way of slowing down global warming is to protect and restore the forests, particularly the tropical forests

If we do not do something to help these creatures, we make a mockery of the whole concept of justice.

You're thinking about putting scientists into small cages and doing research on them. I wish it could happen sometimes.

Certainly the first true humans were unique by virtue of their large brains. It was because the human brain is so large when compared with that of a chimpanzee that paleontologists for years hunted for a half-ape, half-human skeleton that would provide a fossil link between the human and the ape.