Study authors with tusk (IMAGE) Stockholm University Caption Love Dalén and co-lead author Patrícia Pec?nerova? with a mammoth tusk on Wrangel Island. Credit Gleb Danilov Usage Restrictions May only be used in connection with the above publication/research. 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.