[ISTATALK-L] Extinction, Tuesday on NOVA

[bpoelker@xxxxxxxxxxxxxxx]

Check out what Smithsonian paleontologist Doug Erwin has to say about  
extinction on the PBS web page

http://www.pbs.org/wgbh/nova/sciencenow/3318/01-susp-erwin.html



Brian Poelker
Distinguished Colleague Illinois Science Teachers Association
bpoelker@xxxxxxxxxxxxxxx
http://www.sdworkshops.org/brianpoelker.htm
http://www.primepresentations.com/biopoelker.thtml

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