HAMILTON, Mont. (AP) — Biologists with the University of Montana and Montana Fish, Wildlife and Parks are starting a one-year study on mountain lions living in the east and west fork drainages of the Bitterroot River where a three-year elk study is also being conducted.

The Ravalli Republic reports (http://bit.ly/UU2Hgh) that biologists plan to use hollow biopsy darts to collect DNA samples from cougars treed by dogs. Biologists will also use DNA information collected from scat as well as DNA from mountain lions killed by hunters.