Merlin, Parker's new golden retriever, is the perfect pet, but it turns out that Merlin is so fond of Parker that he escapes he crate and yard to follow Parker every time he leaves.
Examines how animals relate to one another, discussing predators, parasites, animals that move in groups, and other topics, particularly animal communication.
Discusses both generally and with specific examples seemingly inexplicable animal behavior, some of which exhibits unusual loyalty to and friendship with man.
Examines partnerships between two different species of animals that provide one or both of the partners with food, protection, transportation, or a way to keep clean.