We don't know when the rivalry between cats and dogs began, but judging by how deeply ingrained it is into their natures, it's safe to guess that this is not a new development. My guess is that cats and dogs have always had it in for each other, dividing nations about which one is cuter. But no matter whether you're a dog or cat person, this picture is pretty hilarious. For more priceless cat memes, look no further. This is your one stop shop for everything cats. 

Skin transplant fur grows back the length of where it came from