Recently, I've noticed a lot of interesting threads on rat genetics here.
Here's two helpful links I thought I'd share:
http://www.ratbehavior.org/rats.html
- The section titled Rat Coat Biology is pretty interesting.
http://goto.glocalnet.net/rat/gen/agouti.htm
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- Eva's Rat coat color genetics page
For those of you interested in "nature vs. nuture" stuff, consider how the relatively new science of epigenetics tells us how "nuture" can influence "nature".
http://www.mcgill.ca/headway/fall2006/indepth1/
http://www.dukemednews.duke.edu/news...le.php?id=9322
http://www.discover.com/issues/nov-06/cover?page=1
- This last one is a pretty good one and starts off describing the yellow obese agouti syndrome in mice and how a mouse mother's diet can influence some of the traits expressed in her offspring.