Woolly mammoth samples (IMAGE) McMaster University Caption A sample used in the study which tracked the travels of a woolly mammoth which wandered the earth 14,000 years ago. Credit Sidney Roth/McMaster University Usage Restrictions None License Original 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.