If you watch animals objectively for any length of time, you're driven to the conclusion that their main aim in life is to pass on their genes to the next generation.

One in eight plant species face extinction.

If we were all to reduce our demands for energy, it would make an enormous amount of difference.

What I am interested in with birds, just as I am with spiders or monkeys, is what they do and why they do it.

London has fine museums, the British Library is one of the greatest library institutions in the world... It's got everything you want, really.

I believe the Abominable Snowman may be real. I think there may be something in that.

It is that range of biodiversity that we must care for - the whole thing - rather than just one or two stars.