The Debut of a Robotic Stingray, Powered by Light-Activated Rat Cells (2 of 18) (image) American Association for the Advancement of Science Share Print E-Mail Caption This is a tissue-engineered soft-robotic ray. This material relates to a paper that appeared in the July 8, 2016 issue of Science, published by AAAS. The paper, by S.-J. Park at Wyss Institute for Biologically Inspired Engineering in Cambridge, MA, and colleagues was titled, "Phototactic guidance of a tissue-engineered soft-robotic ray." Credit Karaghen Hudson and Michael Rosnach Usage Restrictions Please cite the owner of the material when publishing. This material may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. 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.