Scientists discovered a gene that explains the appearance of white skin in humans; they think it probably mutated as people moved further north, in order to make it easier to take in Vitamin D from the sun in less sunny regions.

This is the kind of genetic science that totally fascinates me. I wish they didn' thave to give so many disclaimers about people not misunderstanding this discovery and using it in bad ways. But I guess I resolved myself long ago to the stupidity of most people.

(And will newspapers stop running ads about fungal infections in fingernails. They're gross.)

Scientists Find A DNA Change That Accounts For White Skin (WP)