New proof that asteroid impact killed off the dinosaurs

Submitted by Ted Williams on Sat, 02/09/2013 - 08:38.

http://science.nbcnews.com/_news/2013/02/07/16887641-new-proof-that-asteroid-impact-dealt-the-dinosaurs-a-quick-death-blow?fb_action_ids=4969437248232&fb_action_types=og.recommends&fb_ref=AddThis_Blogs&fb_source=other_multiline&action_object_map=%7B%224969437248232%22%3A336462123140204%7D&action_type_map=%7B%224969437248232%22%3A%22og.recommends%22%7D&action_ref_map=%7B%224969437248232%22%3A%22AddThis_Blogs%22%7D

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