Mammoth Tusk (image) Cell Press Share Print E-Mail Caption This photograph shows a mammoth tusk on Wrangel Island. Credit Patrícia Pečnerová Usage Restrictions Credit Required. Share Print E-Mail 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.