Cockroaches Can Squeeze through the Tinniest of Cracks (image) University of California - Berkeley Share Print E-Mail Caption Three cockroaches squeeze though a 3 mm crevice under a room door at different stages of traversal. Credit Photo by Tom Libby, Kaushik Jayaram and Pauline Jennings, courtesy of PolyPEDAL Lab, UC Berkeley. Usage Restrictions None Share Print E-Mail 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.