Drosophila

Olfactory system Drosophilia

Muscular system Drosophilia

Protein Shown to Be Natural Inhibitor of Aging in Fruit Fly Model

http://www.sciencedaily.com/releases/2010/03/100304142238.htm

Einstein researchers discover key to cell specialization (at least in fruit fly)

http://www.eurekalert.org/pub_releases/2011-11/aeco-erd111011.php