People knew that animals were nocturnal but they didn't really know what they did because they couldn't see it.

I am not over fond of animals.

I like animals. I like natural history. The travel bit is not the important bit. The travel bit is what you have to do in order to go and look at animals.

People are not going to care about animal conservation unless they think that animals are worthwhile.

I'm not a propagandist, I'm not a polemicist; my primary interest is just looking at and trying to understand how animals work.

There are some four million different kinds of animals and plants in the world. Four million different solutions to the problems of staying alive.