DNA evidence has revealed some Neanderthals probably had red hair after scientists discovered a pigmenting gene in ancient remains. Neanderthals, who lived around 400,000 to 28,000 years ago, are typically portrayed as dark skinned and dark-haired but some may have more closely resembled Europeans.
An international study of the bones of two cavemen found a gene that affects the production of melanin, associated with fair skin and fiery hair. This indicates that some Neanderthals had pale skin and red hair, much like modern day humans.
The rest of this story, and a creepy picture, is here.