Zen, a five-year-old border collie, circles friskily around a mound of snow as he picks up a scent, his quick movements ...

Zen, a 5-year-old Border collie, circled friskily around a mound of snow as he picked up a scent, his quick movements ...

Melissa Lanham, dressed as an ancient Egyptian, walked backward with Frisbees, moving one hand forward and one hand back, as ...

It is often said that dogs are a man's best friend, and rightly so. And if they are smart, they also make great companions!