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Published online 28 March 2007 | Nature | doi:10.1038/news070326-9
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Disappearing dinos didn't clear the way for us
The mass extinction 65 million years ago had little effect on today's mammals.
The extinction of the dinosaurs had little impact on the evolution of today's mammals, say researchers. After building a family tree of nearly every living mammal, they show that the main groups arose millions of years before the dinosaurs went extinct, and did not become dominant until millions of years after they disappeared.
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