What do Persian cats, Pekingese dogs and pugs have in common? They all share a dramatically distorted skull, with a flat, round face and a nose pushed up between their eyes. This unnatural morphology ...

Dear reader, I recently wondered why pet dogs come in so many uniquely different shapes, sizes, and colors, while cats look so similar to each other. For instance, Great Danes and Chihuahuas are ...

Is this breed of dogs in danger because of selective breeding?Is this breed of dogs in danger because of selective breeding?