*Sigh.* I enjoyed our discussion much more before you started channeling Robert Ardrey. Or whatever cultural anthropology guru has been messing with your head.
I reject the notion of instinctive knowledge, or inherited behavioral patterns. Humans are born tabula rasa. As Ayn Rand put it, "A free will saddled with a tendency is like a game with loaded dice." People CHOOSE their moral codes, from a wide range of available options. The moral systems which respect the nonaggression principle lead toward freedom, and entail a benevolent set of "rights" which you would call "natural" -- although there's nothing more "natural" about them than there is about the predatory "rights" inherent in statism. The ability to make moral distinctions and choices is natural and necessary for humans; the idea that ones choices are genetically predetermined is self-contradictory and/or unprovable.
You do indeed, in this post, sound mystical. Worse: you sound deterministic. What's the point of arguing determinism, if the result is predetermined?
Recommended reading: The Most Dangerous Superstition, http://www.amazon.com/Most-Dangerous-Superstition-Larken-Ros...