I came across this article in the new National Geographic magazine. It hit a little too close to home.
"This year, news reports buzzed that true redheads will be extinct by 2100, since carriers of the carrot-top gene are less and less likely to pair up in an age of global intermingling (a child usually needs a copy from each parent to get the red result). But while redheads may decline, the potential for red isn't going away. When a mutation created the special gene in northern Europe millennia ago, its effect on hair and skin pigments - causing red to build up instead of brown - was beneficial, upping the body's ability to make vitamin D from sunlight. Today, the gene's carriers are often prone to skin cancer and, oddly some are more sensitive to heat- and cold-related pain."
What are we going to do? I can't believe this! Extinct!