On Aggression Book

Lorenz, a famous ethologist and a somewhat controversial figure for his ideas, proposes that human beings, like most of other vertebrates, are inherently aggressive and this aggression is triggered by a variety of situations. Therefore, if we understand the instinctual behavior patterns in animals, we can explain a thing or two about human behavior too.
Now, this is a wonderful book. I learned about the gorgeous and aggressive coral fish, geese, rats and many amazing things about other animals. Its not until the last three chapters that he properly presents his thesis, and It wasn't convincing enough. I think aggression in humans is slightly a more complex phenomenon then in vertebrates. Our society, behaviors and drives are more intricate and cannot be explained in this context. Neuroscience and Behavioral psychology have a better chance of explaining that, but as far as Greylag goose and Cichlid are concerned, Lorenz is very adept at explaining their social hierarchies and their rites and rituals.