Shar Pei
With the development of breed clubs and kennel clubs during the mid-19th century, dog breeding became more rigorous and many breeds were developed during this time. Dog breeding became more systematic to preserve unique mutations such as shortened legs, a shortened face, new fur colors and textures. The increased popularity of dog shows that judged a dog's look more than its working ability led to different goals when breeding. Dogs bred for show rather than performance tended to develop more exaggerated and extreme features to meet breed standards. One example of this change in breeding goals is the pronounced sloped back in the modern German Shepherd breed, compared to the straight back of working pedigrees. The Shar Pei is an example of how differing breed standards can influence the direction breeders take a dog and which traits are exaggerated. The Western Shar Pei has been bred to have a meatier mouth and wrinklier skin than the traditional Chinese Shar Pei it originated from.