BBC NEWS | Science/Nature | 'Fires wiped out' ancient mammals

If you have read Guns, Germs, and Steel this is a of special interest to you. In the book (CD), it is hypothesized that humans caused the mass extinctions in Australia, but through hunting and not firestarting. Now, there may be new evidence that suggests it was fire.
BBC NEWS | Science/Nature | 'Fires wiped out' ancient mammals: "The evidence, published in Science magazine, comes from ancient eggshells.

These show birds changed their diets drastically when humans came on the scene, switching from grass to the type of plants that thrive on scrubland.

The study supports others that have blamed humans for mass extinctions across the world 10-50,000 years ago"


BTW don't miss Guns, Germs, and Steel on PBS. I am really excited about it and will defnitely be taping.