What is "success"?

From an interview in the March 2007 issue of Discover Magazine, of Jane Goodall.

Q. If chimps are so much like us, why are they endangered while humans dominate the globe?

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