A recent extinction event understood (Introduction)

by David Turell , Wednesday, May 22, 2013, 15:08 (3994 days ago) @ David Turell
edited by unknown, Wednesday, May 22, 2013, 15:19

Large animals in No. America disappeared at the end of the last ice age, roughly 14,000 years ago due to an impact in no. America:-http://www.sciencedaily.com/releases/2013/05/130520185524.htm-http://phys.org/news/2013-05-comprehensive-analysis-impact-spherules-theory.html