I'll keep this in mind when I next hear someone babbling on about "breeds" of dogs such as the legendary Mastiff and the mythical Chihuahua. Such morphological changes, being completely undemonstrated, must therefore be a lie by Big Darwinism. But of course dog breeding is unnatural selection. It is the product of the deliberate, intelligent design of dog breeders. It is of no assistance to Darwinism at all.