You're talking about biological comparisons. I'm talking about mental and social differences. That was my point about our key biological commonality: our protean brain which enables us to vary so much at the psychological and cultural levels. We share a lot of DNA with chimpanzees, which tells us that DNA is protean too in that the environment can trigger the proteins to produce different species. Our species is more autonomous than the others. We have (limited) freedom to define ourselves; hence the variety of worldviews, histories, and cultures.