Nocturnal Bee (image) Smithsonian Tropical Research Institute Caption Megalopta bees exhibit a very primitive form of social behavior. Either a bee lives as a solitary queen, going out from her nest to forage for her own food or she can be a social queen -- a stay-at-home mom. Credit Adam Smith Usage Restrictions Credit: Adam Smith 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.