Airburst over the Americas!

Startling evidence has been found which shows mammoth and other great beasts from the last ice age were blasted with material that came from space.

Seven tusks dating to some 35,000 years ago all show signs of having being peppered with meteorite fragments.

The ancient remains come from Alaska, but researchers also have a Siberian bison skull with the same pockmarks.

The scientists released details of the discovery at a meeting of the American Geophysical Union in San Francisco, US.

They painted a picture of a calamitous event over North America that may have severely knocked back the populations of some species.

Posted by David on December 11, 2007 5:09 PM