Human lives have been influenced by animals in matters that reach far beyond the food chain. In surprising ways, animals help teach, heal, and strengthen people -- in body, mind, and spirit.

(Airs Sunday, June 20) While we are mesmerized by their likeness to our species and we have continually found uses for chimps, we never considered what they wanted or needed.

Both humans and animals seem to be hard-wired to find youngsters adorable. Baby Tales explores the reasons why the young play on our heart strings.

One of the world's best known animal researchers surveys the results of more than three decades of painstaking study in Jane Goodall's Wild Chimpanzees.