Different iterations of the character have been developed and expanded in the various series featuring the characters, many of them contradicting, such as the original series and recent live-action movies where Shaggy and Scooby first meet as older teenagers for the first time. This contradicts the animated series "A Pup Named Scooby-Doo", where they know each other from almost infancy, though the films may be seen as having a different continuity altogether than the cartoon products. As an adult canine, Scooby is usually treated as a mix of a pet and a friend by his companions.