Atheneum, 1970. Blue cloth hardcover with dust jacket. This revolutionary book compared human behavior to that of the animal kingdom, and ultimately changed thinking in social sciences. Contains black and white illustrations by the author's wife Berdine Ardrey. Very Good. Tight, square binding with clean covers. Price tag and isolated sticker stain to front fly leaf. Interior pages clean and crisp. Dust jacket price clipped with slight corner and edge wear. Pushing to dust jacket spine ends and dust jacket spine has some sunning.