Like the dinosaur extinction (Introduction)

by David Turell , Saturday, August 30, 2014, 15:31 (3738 days ago)

It appears an impact wiped out the North American megafauna 13,000 years ago:-http://wattsupwiththat.com/2014/08/29/younger-dryas-climate-event-solved-via-nanodiamonds-it-was-a-planetary-impact-event/