Harlequin Frog (<i>Atelopus macho</i>) (IMAGE) University of Plymouth Caption This is the harlequin frog from Costa Rica. Credit Robert Puschendorf, School of Biological Sciences, Plymouth University Usage Restrictions None 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.