American History 201 (VIDEO) Harvard Medical School This video is under embargo. Please login to access this video. Caption First author Pontus Skoglund explains his team's new hypothesis about the ancient migrations that gave rise to today's Native Americans. Credit Stephanie Dutchen Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.