For thousands of years, humans have selectively bred dogs to fulfill specific roles, ranging from guarding and hunting to herding and companionship. This deliberate shaping of traits has resulted in ...
It's no wonder these pups are man's best friends!
Through intensive breeding, humans have pushed breeds such as pug dogs and Persian cats to evolve with very similar skulls and 'smushed' faces, so they're more similar to each other than they are to ...