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Unformatted text preview: magnetic reversals in the stratigraphic record that the K/T transition is varies in time from place to place. Every couple of years someone publishes a paper indicating that they found the impact crater; the most recent focus is somewhere near the Yucatan peninsula or western Caribbean. Keep an eye on Nature and Science. The issue of impact extinction puts all that we learned about population genetics and adaptation in a very different perspective. So what if one allele is more fit than another, or the rate of evolution depends on the amount of additive genetic variation in the population, if an asteroid is going to blow us away tomorrow, then microevolution really is decoupled from macroevolution . But what about those lineages that sail through the K/T boundary unaffected? Maybe they were adapted, pre-adapted or just exapted for the impact and there is a coupling....
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- Fall '10