Fruit Flies (IMAGE) Champalimaud Centre for the Unknown Caption Are you in danger? Looking at how others behave is one of the ways social animals, such as humans, find the answer. Even though the existence of social cues of danger is well known, no social cues of safety have been identified until just now. Credit Clara Ferreira Usage Restrictions always with credits 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.