In the Baboon community, it is not how strong you are that is important, but who you know that counts

I suffer much less than many of my colleagues. I am perfectly able to go to Australia and film within three hours of arrival.

Many individuals are doing what they can. But real success can only come if there is a change in our societies and in our economics and in our politics.

The correct scientific response to something that is not understood must always be to look harder for the explanation, not give up and assume a supernatural cause.

I'm a humanist. I'm neither one side nor the other.

One in eight plant species face extinction.

I don't think whole populations are villainous, but Americans are just extraordinarily unaware of all kinds of things. If you live in the middle of that vast continent, with apparently everything your heart could wish for just because you were born there, then why worry? [...] If people lose knowledge, sympathy and understanding of the natural world, they're going to mistreat it and will not ask their politicians to care for it.