eternaldoctorwho writes: New evidence has been uncovered that suggests mammals were widely successful at least 20 million years before dinosaurs went extinct in the K-T asteroid impact. A recently published study in Nature by paleontologist Greg Wilson of the University of Washington reveals that multituberculates (a class of mice-like mammals named for the shape of their teeth) became abundant at the same time as the rise of flowering plants. So what did finally wipe out this now-extinct class of "multis"? University of Chicago paleontologist Zhe-Xi Luo has the answer, "You could say multituberculates were a good match against the dinosaurs, but they were no match for the rodents."
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