The Biological Roots of Morality

A few days ago, WashingtonPost had an article titled "If It Feels Good to Be Good, It Might Be Only Natural" on new, exciting research on the biological roots of morality -
> the brain centers that are responsible for altruism,
> the role that evolution played in the development of our moral fiber, etc.

"...it is also a dramatic example of the way neuroscience has begun to elbow its way into discussions about morality and has opened up a new window on what it means to be good......"