Loaded Bee (IMAGE) Penn State Caption Researchers at Penn State found that bee species with larger body sizes and social behaviors exhibit patterns of lower population structure than bees with smaller bodies and solitary behaviors. Credit Barbara Driscoll Usage Restrictions non commercial use only 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.