Photograph of honeycomb (IMAGE) Proceedings of the National Academy of Sciences Caption Photograph of honeycomb, with color overlay showing the cell tilt of each hexagonal cell. Bees have merged three pieces of comb (worker comb at left and right; drone comb at center). Credit Image credit: Michael L. Smith. Usage Restrictions None 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.