Feeding the Frogs (IMAGE) Uppsala University Caption Ecotoxicologist Cecilia Berg feeds the frogs in her laboratory at Uppsala University's Department of Environmental Toxicology, one of the few laboratories worldwide that performs life-cycle testing of chemicals on frogs. Credit Margareta Mattsson Usage Restrictions May only be published in connection to reports about the research by Cecilia Berg et al 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.