I would love to see a giant squid. Very few people have seen them. And only about half a dozen people have seen one alive.

It's like saying that two and two equals four, but if you wish to believe it, it could also be five ... Evolution is not a theory; it is a fact, every bit as much as the historical fact that William the Conqueror landed in 1066.

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

Climate change will affect the whole of humanity, while terrorist attacks will only affect a small section of humanity. Of course, you wouldn't say that if you were related to someone who had been beheaded or blown up or murdered. But humanity is facing a very big, slow, long, drawn-out threat, and that is to do with the way the weather is changing and the size of the population.

The process of making natural history films is to try to prevent the animal knowing you are there, so you get glimpses of a non-human world, and that is a transporting thing.

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

Can a growing human population still leave space for wildlife?