"[First] time it's happened in the history of [border] collies" one user said. Another added: "I didn't know this was ...

Zen, a 5-year-old border collie, circled friskily around a mound ... Zen has been a rescue dog for three years, and on this day, he was setting an example for 20 others dogs being certified ...

Kevin, a Border Collie-Heeler mix, took his massive stick to shore with unstoppable determination and big working dog energy.