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From: National Science Foundation Update <[EMAIL PROTECTED]>
Date: Fri, Oct 10, 2008 at 12:20 AM
Subject: Fitness in a Changing World
To: [EMAIL PROTECTED]


 Fitness in a Changing
World<http://www.nsf.gov/news/news_summ.jsp?cntn_id=112436&govDel=USNSF_51>

 [image: Illustration showing that different genes in different stickleback
fish result in different fitness.]

The stickleback fish, *Gasterosteus aculeatus*, is one of the most
thoroughly studied organisms in the wild, and has been a particularly useful
model for understanding variation in physiology, behavior, life history and
morphology caused by different ecological situations in the wild.

On biological levels from molecular and genetic to developmental and
morphological, and finally ending with the population level, it has proven
far more complex than even imagined.

Studies of ...

More at http://www.nsf.gov/news/news_summ.jsp?cntn_id=112436&govDel=USNSF_51


This is an NSF News item.

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