There's no census of everyday mixed-breed dogs in the U.S., but the American ... That's not inexplicable, as the two groups count different sets of organizations. But both emphasize that purebreds ...

divides dogs into seven different groups based on what their breed purpose is. For example, the Sporting Group consists of ...

There are a whopping 221 different breeds of pedigree ... with the large dog breeds favoured in 1997 overtaken by small dogs in 2012, which have remained most popular ever since.