Researchers on Bioko Island (image) Drexel University Share Print E-Mail Caption A pair of the researchers during their survey of Bioko Island were looking for monkey groups and evidence of gun hunting. Credit Photo by Elliott Chiu. Usage Restrictions Credit as noted. 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.