Monday, January 02, 2006

First life

'Four billion years ago, back when life began, our planet was a very different place. Earth spun more rapidly on its axis—a day lasted only four or five hours. The Moon was much closer, and giant meteorites pelted the planet. Under these conditions of constant, chaotic change, there was only one place of constancy—a warm spring in the relative safety of the deep ocean floor.' More


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