Why Dogs Chase Cats... is a children's story, likely a picture book or fable, that offers a humorous and imaginative explanation for the common antagonism between dogs and cats. Written by Bob Hartman, known for his engaging storytelling, the narrative would use an anthropomorphic approach, perhaps setting the conflict in ancient times or involving a silly misunderstanding. The story is a playful exploration of animal behavior, designed to entertain children with a whimsical origin story for the classic rivalry.