The Pictus Catfish Can Feel With Its Fins (2/2) (video) University of Chicago Medical Center Share Print E-Mail Loading video... Caption High-speed video of the pictus catfish. Pectoral fins are held at a constant angle to the body throughout the swimming motion, allowing researchers to isolate and study neurons involved in touch sensation. Credit University of Chicago 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.