A strawberry poison-dart frog (IMAGE) University of Arizona Caption The strawberry poison-dart frog exhibits vivid colors that serve as a powerful warning signal to predators. Credit John J. Wiens Usage Restrictions This visual may only be used for the purpose of posting and/or reporting of this news release. Credit information must be provided as indicated. License Original 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.