I learnt from Flo how to be mother. Flo was patient, tolerant. She was supportive. She was always there. She was playful. She enjoyed having her babies, as good mothers do.

I always loved animals. And when I was ten, I decided I had to go to Africa and live with animals and write books about them.

Animals were my passion from even before I could speak apparently. When I was about 10, 11 I fell in love with Tarzan.

It would be absolutely useless for any of us to work to save wildlife without working to educate the next generation of conservationists.

The most important thing is to actually think about what you do. To become aware and actually think about the effect of what you do on the environment and on society. That's key, and that underlies everything else.

Here we are, arguably the most intelligent being that's ever walked planet Earth, with this extraordinary brain ... and yet we're destroying the only home we have.

I think the most important thing is to keep active, and to hope that your mind stays active.