Catshark Daytime Resting (IMAGE) University of Bristol Caption This depicts a catshark resting in the daytime. Credit David Sims Usage Restrictions The Image, taken at the Marine Biological Association of the UK, is for single-use only to accompany this press release and should not be archived. License Licensed content 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.