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Principles of Evolution, Ecology and Behavior - Lecture 19

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Lecture 19 - The Fossil Record and Life's History

The fossil record holds a lot of evolutionary information that can't be seen on shorter time scales, although the more recent fossil record is more complete. Among other things, the fossil record demonstrates that extinctions can open up ecological space for new speciation and radiation, and that life forms tend to begin small and evolve to be bigger over time.

Prof. Stephen C. Stearns
EEB 122: Principles of Evolution, Ecology and Behavior, Spring 2009
(Yale University: Open Yale)
http://oyc.yale.edu
Date accessed: 2009-11-18
License: Creative Commons BY-NC-SA

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