(YELLOWSTONE, N.P.) – Two more grizzly bears were captured Sunday in Yellowstone National Park, following a deadly attack nearly two weeks ago. Park officials say hair samples were taken for DNA testing and radio collars were placed on the bears for tracking. If the DNA on the hair matches the samples recovered at the mauling site, either of the animals might be killed. A total of three bears have been captured in the Hayden Valley area during the past week.