We believe our world is riddled with terror and war, but we may be living in the most peaceable era in human existence. Why brutality is declining and empathy is on the rise.

In the coming era of consumer genetics, your DNA will have much to tell you about the biological bases of your health, your physique and even your personality. But will this knowledge really amount to self-knowledge?

Conservative bioethics' latest, most dangerous ploy.

Evolution has endowed us with ethical impulses. Do we know what to do with them?

Why we curse.

The genealogy craze in America.

We're getting nicer every day.

On groups and genes.

Sex ed.