Aerial image of beaver lodge (IMAGE) Anglia Ruskin University Caption An aerial image of a beaver lodge inside the Arctic Circle, in the Mackenzie Delta region of Canada’s Northwest Territories. Credit Please credit Dr Helen Wheeler, Anglia Ruskin University Usage Restrictions Please credit Dr Helen Wheeler, Anglia Ruskin University 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.