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Old 04-06-2007, 10:21 AM   #1
Hopeful
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Join Date: Aug 2006
Posts: 3,380
Growth Factor explains different sizes of dog breeds

An interesting article about the effects of IGF1 on the range of sizes of man's best friend: http://www.sfgate.com/cgi-bin/articl...w112017D16.DTL

Hopeful
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