Asteroid that wiped out dinosaurs nearly knocked off mammals
Albuquerque NM (SPX) Dec 18, 2014 - The extinction of the dinosaurs 66 million years ago is thought to have paved the way for mammals to dominate, but a new study shows that many mammals died off alongside the dinosaurs. Metatherian mammals--the extinct relatives of living marsupials ("mammals with pouches", such as opossums) thrived in the shadow of the dinosaurs during the Cretaceous period. The new study, by an internatio ... more
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