Pleistocene mammal extinction was "rapid" Nov 25, 2009 4:23:52 GMT Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by schnautzr on Nov 25, 2009 4:23:52 GMT PNASSynchronous extinction of North America's Pleistocene mammals(Abstract)NewsWiseResearcher moves closer to understanding cause of mass extinction(News article)