Puppies are not usually naturally aggressive, but some puppies can show signs of dominance that can lead to aggression. Find out why it’s best to win challenges with puppies with help from a certified professional dog trainer in this free video on dog training and pet care.
Expert: Zephyr Clarke-Dolberg
Bio: Zephyr Clarke-Dolberg is a certified professional dog trainer in Miami, Fla.
Filmmaker: Paul Muller