Scientists at the USDA's Agricultural Research Service (ARS) are developing bees with a genetic trait that allows them to more easily find the mites and toss them out of the broodnest. Varroa mites attack honey bees and can weaken or kill colonies. An article [1] is available here, along with a video [2] and an information kit [3].
Links:
[1] http://www.ars.usda.gov/is/pr/2009/090910.htm
[2] http://www.ars.usda.gov/is/video/asx/varroa.asx
[3] http://www.ars.usda.gov/is/br/bees/index.htm
[4] http://twitter.com/share