Bee map (IMAGE) Cell Press Caption This map shows modeled relative species richness of bees around the world and depicts the bimodal latitudinal gradient. Darker areas have more species. Credit Orr et al./Current Biology Usage Restrictions Credit required. 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.