Extinction (IMAGE) Stanford University Caption The variable harlequin frog (Atelopus varius) was widespread in Costa Rica and Panama until an introduced fungus from Asia decimated its populations. Credit Gerardo Ceballos Usage Restrictions Credit Gerardo Ceballos 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.