Apoica pallens Paperwasp Colony (image) Drexel University Caption This is a colony of paperwasps of the species Apoica pallens. Sean O'Donnell, Ph.D., of Drexel University and his team compared brain sizes of worker and queen wasp in this and 11 other species to determine the relationship between behavioral sensory environment and sensory brain structures. Credit Sean O'Donnell, Drexel University 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.