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

That people will object very much to seeing a predator killing its prey, and yet, in the news, will accept showing shots of people shooting one another.

You'll find people where their conditions aren't changing in any way, its rather rare for them to be happy.

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

Birds are the most popular group in the animal kingdom. We feed them and tame them and think we know them. And yet they inhabit a world which is really rather mysterious.

The idea that the Lord had given us a present, that the world is a gift from God... well, the amount of stuff, back then, that the Lord was giving away was limited. We do not have dominion.

Before the BBC, I joined the Navy in order to travel.