Humans' oldest known art form is a pornographic sculpture of woman made of mammoth ivory, 47ky old. Somewhere around that time, or maybe half as old, humans domesticated dogs (and vice-versa).
But only when humans learned to farm, which is much more productive than hunting and gathering, when they accumulated grain stores, did cats notice them. Because if you have grain you have mice and cats become your friends, and friendly, besides.
So humans have bred dogs for tens of thousands of years and recently it was proposed that Chihuahuas be designated a separate species from say New Foundlands. Cats remain unencumbered by this highly unnatural selection.
