This has been linked to the MC1R gene mutation, which affects pain receptors. Red hair in close-up. (credit: Wikimedia Commons) Redheads commonly have green or blue eyes—a rare and unique ...

The desert mule deer is a common sight in west Texas, but wildlife biologists in the area came across an extremely uncommon ...

Melanism is a rare, random genetic anomaly believed to be caused by mutations in the melanicortin 1 receptor gene (MC1R) which leads to an over production of the pigment melanin. It’s difficult ...