![](https://webarchive.library.unt.edu/eot2008/20080920093139im_/http://nsf.gov/images/x.gif) News From the Field Why Small Dogs Are Small
![](https://webarchive.library.unt.edu/eot2008/20080920093139im_/http://nsf.gov/images/greenlineshort2.jpg)
April 5, 2007
![Kevin Chase sitting with three dogs](https://webarchive.library.unt.edu/eot2008/20080920093139im_/http://nsf.gov/news/other_images/chasedogs_l.jpg) | Soon after humans began domesticating dogs 12,000 to 15,000 years ago, they started breeding small canines. Now, scientists from the University of Utah and seven other institutions have identified a piece of doggy DNA that reduces the activity of a growth gene, ensuring that small breeds stay small. Full story |
Source University of Utah ![](https://webarchive.library.unt.edu/eot2008/20080920093139im_/http://nsf.gov/images/bluefadesm.jpg)
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