Tag Archive | "Diversification"

Shift Happens. (Even in Schools?)

Thursday, October 29, 2009

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Shift Happens. (Even in Schools?)

On a recent field trip, neither my students nor I was at threat of being eaten alive by a t-rex. Why, despite ruling Earth for nearly 80 million years (even longer than Wall Street barons), are Cretaceous period animals not regularly chowing on our gizzards?  Things change. Scientists have suspected this for some time.  In [...]

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