Cockroaches Squeezing through Cracks (video) University of California - Berkeley Share Print E-Mail Loading video... Caption This is a side view of an American cockroach, P. americana, traversal a 3 mm crevice. Playback sequences are real-time and 10× slowed. Credit 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.