Ape House is a nice quick read about six bonobo apes at a facility where scientists are studying their language and communication abilities. These apes are the best characters in the book- their personalities seem to be better developed than those of the human characters; though the book is mainly narrated by their loving caretaker, Isabel Duncan and a news reporter, John Thigpen. It focuses less on animal and more on the personal lives of the humans.
I'm not sure if this book was really written to its full potential- it seems like because Water for Elephants was so popular they assumed they didn't have to try as hard on this book...it is a little shallow. While it's not life changing or epic, the book is probably worth your time since it probably won't take too much of it. (**If you are squeamish about sexual references beware- reference,though not explicit, is often made to the bonobos' frequent natural behaviors.)