Children start off reading in books about lions and giraffes and so on, but they also-if theyre lucky enough and have reasonable privileges of any human being-are able to go into a garden and turn over stone and see a worm and see a slug and see an ant.

It's a moral question about whether we have the right to exterminate species.

All the modern devices we have enable us to investigate things and have enabled us to do better.

You can only get really unpopular decisions through if the electorate is convinced of the value of the environment. That's what natural history programmes should be for.

I would love to go and see the Himalayan Mountain Kingdoms. There are very few left now. I would loved to have gone to Tibet and Nepal. And there are still parts of central Asia that are utterly unexplored.

We can now destroy or we can cherish-the choice is ours.

The human population can no longer be allowed to grow in the same old uncontrollable way. If we do not take charge of our population size, then nature will do it for us and it is the poor people of the world who will suffer most