The narrator of this extraordinary tale is a man in search for truth. He answers an ad in a local newspaper from a teacher looking for serious pupils, only to find himself alone in an abandoned office with a full-grown gorilla who is nibbling delicately on a slender branch. "You are the teacher?" he asks incredulously. "I am the teacher," the gorilla replies. Ishmael is a creature of immense wisdom and he has a story to tell, one that no other human being has ever heard. It is a story that extends backward and forward over the lifespan of the earth from the birth of time to a future there is still time save. Like all great teachers, Ishmael refuses to make the lesson easy; he demands the final illumination to come from within ourselves. Is it man's destiny to rule the world? Or is it a higher destiny possible for him - one more wonderful than he has ever imagined?
If you want another didactic, moving novel on human ecology - check out these suggestions for Daniel Quinn's influential Ishmael.