I was flipping through this old book from 1957 that summarized the years news (a great dump find) and they had an article about a chip who painted modern art masterpieces. Its like the oldest joke about the art world.
Meet Congo:
"the remarkable picture-making abilities of a chimpanzee called Congo. His paintings were not random splashes, but visually controlled abstract compositions, and Roland arranged an exhibition of them at the ICA in London. "