With a Drop of Saliva, Family Histories Are Rewritten Widespread DNA testing has shed light on the ancestry of millions of Americans. But these services have limitations, and the results can be uncertain. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Trilobites: A Stick Insect. A Tree Lobster. Whatever You Call It, It’s Not ExtinctMexico volcano latest: THREE eruptions take place at Popocatepetl in just TWO HOURSDraconid meteor shower arrives this weekend – weather forecast reveals when best to watchYellowstone supervolcano WARNING: Record swarm of earthquakes raises concerns in CaliforniTokyo Is Preparing for Floods ‘Beyond Anything We’ve Seen’Vladimir Voevodsky, Revolutionary Mathematician, Dies at 51
