(STILLWATER, Okla.) — Oklahoma State University has many notable topiaries around campus including a cowboy boot and hat as well as people lined up signing “O-S-U” outside Old Central. This fall, a bison joined campus with a few new features allowing it to stay out year-round. A topiary is foliage that has been trimmed and shaped into an object. The bison is OSU’s first attempt to have a year…