Some Stone Age humans ventured back to Africa

摘要

DNA from an ancient woman who lived in what is now Romania indicates that people in Asia trekked to Africa starting between 45,000 and 40,000 years ago. Evidence for this back-to-Af rica trip comes from the partial remains of a 35,000-year-old human discovered in a cave more than 60 years ago. A distinctive pattern of alterations to mitochondrial DNA extracted from two teeth are similar to alterations seen in mitochondrial DNA of present-day North Africans, signaling an evolutionary connection, researchers in Europe say May 19 in Scientific Reports.