For most of our evolutionary history, human activity has been linked to daylight. Technology has liberated us from these ancient sleep-wake cycles, but there is evidence sunlight has left and ...

This article is a continuation of last week’s story that looked at the evolution of human skin color. To review, the first humans had light skin that was covered in hair all over their bodies. These ...

Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among individuals is caused by variation in pigmentation, which is the result of genetics (inherited from ...

In this episode, Dr. Tina Lasisi walks us through how we genetically inherit skin color. Have you ever been convinced that you’re adopted because your parents have a radically different skin color?

Every person in the human race is from the same species, no matter what features they show on the outside (or inside). To science, there really is no such thing as Native Americans, Eskimos, African ...