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

I think we're lucky to be living when we are, because things are going to get worse.

I mean, it is an extraordinary thing that a large proportion of your country and my country, of the citizens, never see a wild creature from dawn 'til dusk, unless it's a pigeon, which isn't really wild, which might come and settle near them.

‎Using his burgeoning intelligence, this most successful of all mammals has exploited the environment to produce food for an ever increasing population. Instead of controlling the environment for the benefit of the population, perhaps it's time we controlled the population to allow the survival of the environment.

Life is not all high emotion. Some of the most interesting things are when its not highly emotional: little details of relationships and body language.

The more you go on, the less you need people standing between you and the animal and the camera waving their arms about.

People must feel that the natural world is important and valuable and beautiful and wonderful and an amazement and a pleasure.