Test arena (IMAGE) Penn State Caption The researchers examined how fungal infection influenced the behavior of aphids and beetles by transferring insects from the faba bean plants to a test arena, which provided space for the insects to freely move across extreme temperature conditions to access food in containers located at each end of the device. Credit Penn State Usage Restrictions None 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.