I've been fascinated by the Neanderthals ever since I read The Clan of the Cave Bear by Jean Auel several years ago. Since that time, groundbreaking research has added to our understanding of the Neanderthals and has confirmed that many people alive today have about 1% to 3% Neanderthal DNA.
You can find out if you have a Neanderthal ancestor by having your DNA tested by companies such as 23andMe. My sister is sending me the kit as a gift and I'm very curious to find out if I have Neanderthal DNA. I hope I do!
Update: The results of my 23andMe DNA test have arrived!