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RE: variation in yellow rat localities

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Posted by: hermanbronsgeest at Thu Sep 27 03:28:44 2007   [ Email Message ] [ Show All Posts by hermanbronsgeest ]  
   

The more northern you go, the darker the Yellow Ratsnake becomes. In some studies this clinal accumulation in pigmentation has been interpreted as an adaptation to a cooler climate. So far I haven't seen any reports indicating that the striped pattern is retained by mechanisms other than isolation by distance.

   

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