Friday, September 3, 2010

Mass Extinction Threat: Earth On Verge of Huge Reset Button?

From Live Science:

Mass extinctions have served as huge reset buttons that dramatically changed the diversity of species found in oceans all over the world, according to a comprehensive study of fossil records. The findings suggest humans will live in a very different future if they drive animals to extinction, because the loss of each species can alter entire ecosystems.

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