Dogor (IMAGE) The Francis Crick Institute Caption 'Dogor', an 18,000 year-old wolf puppy from Yakutia which was included in the study Credit Sergey Fedorov Usage Restrictions Use with credit 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.