I think it will be easy to understand why the American pit bull terrier has been one of the most popular family dogs in the country for the past several decades. (blessthebullys.com)
The golden retriever is known for being one of the most popular family dog breeds, but just what is it that makes this breed so high in demand? (caninejournal.com)
Historically, they've been popular family dogs because they adapt well to children. (dogcare.dailypuppy.com)