APhoto Of The Day — 10.19.11

Zeus, an 11-year-old Maine Coon cat, encounters a mountain lion through a sliding glass door in Boulder, Colo. Gail J. Loveman, Zeus’s owner, told The Denver Post she was busy in the office of her home when she heard a noise and turned to see a young mountain lion on the porch. You write the cutline. (AP Photo/Gail J. Loveman)