Polar Bear Hair (IMAGE) Queen's University Caption Polar bear hair is caught in traps and the number and sex of the animal is determined using DNA markers. Credit Photo by Peter V.C. de Groot. 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.