Dog's Best Friend: Cutest Canine Companions

A high energy hound meets his match and finds the ideal playmate in a tiger cub named Thunder. A frail donkey gets a second chance and a friend for life, thanks to his giant pal, Humphrey the Arabian Camel. In Texas, a rough and tumble blue heeler, known for his dominance, shows a surprising softer side for a baby deer found on the side of the road. Then a golden retriever goes over board with her dolphin friends in the Florida Keys.