Chimpanzees have been prime attractions at zoos for nearly a century. But it's only been since 1984 that zookeepers and scientists have made a concerted effort to monitor their health and well being in captivity. Established in part by the Jane Goodall Institute, the ChimpanZoo program tracks, compiles, and disseminates research data gathered by students, volunteers, and zoo administrators at member zoo facilities.

For this story, we'll take you behind the scenes to find out how the program is helping six chimpanzees at the Sacramento Zoo live happier, healthier lives.

You can learn more about ChimpanZoo and the Jane Goodall Institute online at www.janegoodall.org.