This article examines the real-life dog breeds that serve as inspirations for various animated canine characters. It details how the physical attributes and certain behavioral tendencies of specific breeds are often reflected in their cartoon counterparts. For example, Scooby-Doo is depicted as drawing inspiration from the Great Dane, observable in his significant height and characteristic jowls, though his depicted personality contrasts with the breed's typical temperament. Another prominent animated dog, Snoopy, is presented as being influenced by the Beagle breed, noted for his floppy ears and compact physique, with the breed's natural curiosity informing his imaginative activities.
Source: https://indianexpress.com/article/lifestyle/pets-animals/cartoon-dogs-inspired-by-real-breeds-10464462/