Ant Interactions (IMAGE) University of Arizona Caption The study found that time is a crucial but often neglected factor in studying interactions between individuals. Blonder said: "We could imagine that if the yellow ant passed food on to the red ant which could later give it to the blue ant. However, the blue ant has no option of giving anything to the yellow ant because that would require moving backwards in time." Credit Dornhaus lab Usage Restrictions Usage only granted in conjunction with reporting/posting this news release. Image credit must be stated as indicated. 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.