Verkkothis vetcompass study explored random samples of anonymised veterinary clinical records from 2,662 english bulldogs and 22,039 dogs that are. Verkkoin his 1845 book β€œthe dog,” the veterinarian william youatt dismissed the bulldog in much the way many describe modern pit bulls: Verkkothe objective was to assess whether the breed retains enough genetic diversity to correct the genotypic and phenotypic abnormalities associated.