Some Surprising Dog Breeds Have Ancient American Heritage A new study of 161 breeds traces some ancestry back to the Americas of 10,000 years ago. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Water on Mars BOMBSHELL: Asteroid impacts likely triggered TORRENTIAL downpours on MarsThis Songbird Is Nearly Extinct in the Wild. An International Treaty Could Help Save It — but Won’t.Trump Administration Loosens Sage Grouse Protections, Benefiting Oil CompaniesMethadone Helped Her Quit Heroin. Now She’s Suing U.S. Prisons to Allow the Treatment.EPA Plans Limits on a Deadly Chemical in Paint StrippersThe New Old Age: Older Americans Are Awash in Antibiotics