Family of ducks (IMAGE) Australian National University Caption A family of ducks walk across the ANU campus in Canberra, ACT, Australia Credit Photo: Tracey Nearmy/ANU Usage Restrictions N/A 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.