31,000-year-old burial holds world’s oldest known identical twins

An ancient grave in Austria may represent the oldest burial of twins on record, a new study finds. The 31,000-year-old burial dates to the Upper Paleolithic (a period lasting from 40,000 to 10,000 years ago), also known as the Old Stone Age. One of the infants died shortly after childbirth, while his twin brother lived […]