"A while ago I watched a wildlife documentary about Komodo dragons poisoning, tracking for a week or so, and then, finally, when their victim became too weak to defend itself, disembowelling and eating alive, a water buffalo. The cameraman said this had been his first ever wildlife assignment, and it would probably also be his last, because he couldn't cope with the depth of suffering he had been forced to witness. That was just one poor creature. Each day, millions of animals are similarly forced to tear each other limb from limb to survive. And this has been going on for hundreds of millions of years. This is, in many ways, a beautiful world. But it's also a staggeringly cruel and horrific world for very many of its inhabitants."