Plants and animals have evolved all sorts of ways to make themselves more appealing to potential mates—including colorful ...

Many of us think of our own species as a monogamous one. We select a mate, and we stick with them, or so we tend to believe. But are modern humans really as monogamous as we assume, and are we any ...

When ancient humans interbred, new research shows that the pairings were predominantly male Neanderthals and female Homo sapiens. Reconstruction of a Neanderthal man (Homo neanderthalensis), based on ...