March 29, 2007
Mammal Tree

Making the rounds: Results from a new study seem to indicate that mammalian evolution did not experience "explosions" of diversity after mass extinction events. While some species did diversify after, for example, the famous K-T event, for whatever reason they did not survive. It seems all (or perhaps nearly all) current mammal species evolved much earlier, and simply survived each catastrophe.

Posted by scott at March 29, 2007 10:28 AM

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