Over 65 Million Years, North American Mammal Evolution Has Tracked With Climate Change

ScienceDaily (Dec. 27, 2011) — Climate changes profoundly influenced the rise and fall of six distinct, successive waves of mammal species diversity in North America over the last 65 million years, shows a novel statistical analysis led by Brown University evolutionary biologists. Warming and cooling periods, in two cases confounded by species migrations, marked the transition from one dominant grouping to the next.
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