Wolves Pulling a Rope Together (IMAGE) University of Veterinary Medicine -- Vienna Caption Wolf dyads show perfect teamwork, while two dogs hardly were able to cooperate. Credit Wolf Science Center/Vetmeduni Vienna 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.