contemporary issues in public policy

I found this insanely interesting. I agree with some parts of this and disagree with some. I think that some of our 'morality' does come from a biological sense, but that a large part of it comes from how we grow up, what our upbringing was, different situations we were put in and what kind of people we are put in close contact with at a young age. If morality was all (or at least primarily) biological and arising from evolution, then why is it that morality is so different across the human species? It's quite possible I'm way off, but that's just the basics of what i pulled from that..