Cheeta the Chimp, famous for his roles in the early Burrough's Tarzan movies, is the world's oldest chimpanzee at age 73.
Perhaps his old age can be attributed to adopting a cleaner lifestyle - he long ago stopped drinking several beers a day and smoking cigars, and has cultivated a love of art. For a very reasonable $125 you can order an original Cheeta painting complete with photos of the artist with the work and personalized headshots.
All proceeds go to the C.H.E.E.T.A. Primate Sancuary which rescues former stars from (usually) retirement to biological research labs.