Many individuals are doing what they can. But real success can only come if there is a change in our societies and in our economics and in our politics.

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

I find it far more awesome, wonderful, that creation; our appearance in the world; should be the culmination, or at least one of the latest products of 3,000 Million years of organic evolution, than a kind of country trick, taking a rib out of a man's side in a trance.

What humans do over the next 50 years will determine the fate of all life on the planet.

I think the most alarming animals I have encountered are really poisonous snakes.

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.

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.