How Much Caveman DNA Do You Have? Company scours genome for Neanderthal heritage By Dustin Lushing, Newser Staff Posted Dec 25, 2011 4:22 PM CST 38 comments Comments View taken on July 8, 2010 of a mannequin of a Tautavel Man presented at the prehistoric museum in Tautavel. (Getty Images) (Newser) – If you've ever wondered whether your boorish ex or oafish boss may be closely related to our caveman ancestors, you can now officially prove it with a genetic test. Genome-mapping company 23andMe is offering "The Neanderthal Test" this holiday season. Simply submit your saliva and you can find out how much DNA you share with our loincloth-clad forbears, reports Discover Magazine. Recent studies reveal that 30,000 years ago, Neanderthals mixed it up romantically with our Cro-Magnon ancestors. Now the genetic genome of the average human has 2.5% in common with Neanderthals, but some people have much more. Scientifically, the linked heritage means almost nothing, but it could still make for a fine icebreaker at a cocktail party.