Well, in some ways we're not successful at all. We're destroying our home. That's not a bit successful. Chimpanzees, gorillas, orangutan shave been living for hundreds of thousands of years in their forest, living fantastic lives, never overpopulating, never destroying the forest. I would say that they have been in a way more successful than us as far as being in harmony with the environment.

In response to: "If chimps are so much like us, why are they endangered while humans dominate the globe?" Discover Magazine interview, Wednesday, March 28, 2007 with Virginia Morell