Why Does Carl Zimmer Say Redheads Have Pale Skin?
On Science Rules with Bill Nye, in Heredity & Me, Carl Zimmer explains that the variants that make hair lighter also make the pigment in the skin lighter, which is why redheads are pale. He points to his own daughter, who is quite pale and has some red in her hair, and says she gets that from her Irish mother. The caller on the line is Andrew. Zimmer is the author of She Has Her Mother's Laugh, the book the hosts recommend at the end of the episode.
