Bones on Riverbar (IMAGE) University of Alaska Fairbanks Caption University of Alaska Fairbanks researchers Daniel Mann and Pamela Groves found these ice age antlers, tusks and bones in a single day of collecting along an arctic river. The moose antlers date to 12,000 years ago. The picture also shows steppe bison bones, several mammoth tusks and bones, a muskox skull and several horse leg bones. Credit Photo by Pamela Groves, University of Alaska Fairbanks. 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.