Proportion of dogs dying of cancer for specific breeds. (Left) Veterinary Medical Database (VMDB) data. (Right) VetCompass data. Blue lines indicate large breed dogs (VMDB: Labrador Retriever, Golden Retriever, Rottweiler, and Boxer; VetCompass: Labrador Retriever, Golden Retriever, Rottweiler, and German Shepherd). Orange line indicates medium breed dogs (VMDB: Beagle; VetCompass: Border Collie, American Staffordshire Terrier, English Springer Spaniel, Cocker Spaniel), and the red lines indicate small-breed dogs (VMDB: Miniature Poodle, Dachshund, and Yorkshire Terrier; VetCompass: Cavalier King Charles Spaniel, Jack Russell Terrier, West Highland White Terrier, and Yorkshire Terrier). Notice the trend of high rates of cancer in both data sets with a significant decline in the oldest ages.