Modern and Ancient Bee Pupa (image) Natural History Museum of Los Angeles County Caption This is a comparison of (A) a modern leafcutter bee pupa in a nest cell to (B) a micro CT scan reconstruction of a 23-40,000 year old leafcutter bee pupa. Credit Images by Harold Ikerd, USDA-ARS Pollinating Insect Research Unit at Utah State University (modern pupa) and Justin Hall, Dinosaur Hall, Natural History Museum of Los Angeles County (CT scan reconstruction and figure). Usage Restrictions None 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.