Maternal behavior helps when you have to be patient with nonverbal creatures.

If you consciously say 'I won't do it!' to yourself, then you have a good chance that you won't.

Chimps taught us we're not separated from the animal kingdom, we're a part of it.

I sometimes wonder how some people can live with themselves in some of the big companies today. So many far-reaching decisions are based on how they will affect the next shareholders' meeting.

Primates are very territorial. It is in their nature to protect their food resources as well as their females and young.

If everybody on the planet today had the same standard of living as the average European or American, we would need three new planets. But we don't even have one new planet. We have this one, and with the way we're polluting it, the shrinking water resources, the climate change, the experimentation with plants... the outlook is grim.

I would never say I was an icon, but so many people have said I am, so I suppose I am. I mean, I can't not be what everyone says I am. But I don't feel like an icon.