Hot on the Trail of Little Dogs

Armen Hareyan's picture

Dog size

The Utah researchers played a key role in the new study, which began with their research on Portuguese water dogs, a breed with sizes ranging from small to large.

"Lark and Chase were instrumental in the success of this study," says Ostrander, the study's senior author and chief of cancer genetics at the National Human Genome Research Institute. "Their approach was very clever. They enlisted the help of hundreds of pet dog owners across America to provide DNA samples and body-size measurements in the form of X-rays from over 500 Portuguese water dogs.