All over the world, birds [...] manage to survive in the most hostile of places. A century ago, a completely new kind of environment appeared on Eart… - David Attenborough

The savage, rocky shores of Christmas Island, 200 miles south of Java, in the Indian Ocean. It's November, the moon is in its third quarter, and the sun is just setting. And in a few hours from now, on this very shore, a thousand million lives will be launched.

I am at the very centre of the great white continent, Antarctica. The South Pole is about half a mile away. For a thousand miles in all directions, there is nothing but ice. And, in the whole of this continent, which is about one-and-a-half times the size of the United States and larger than Europe, there is a year-round population of no more than 800 people. This is the loneliest and coldest place on Earth, the place that is most hostile to life. And yet, in one or two places, it is astonishingly rich.

Um, so, the world is not as wild as it was. Well, we've destroyed it. Not just ruined it. I mean, we have completely... well, destroyed that world. That non-human world is gone. Uh.... The... Human beings have overrun the world.