Atelopus varius, a Frog Species Presumed Extinct in Costa Rica but Later Rediscovered (image) Arizona State University Share Print E-Mail Caption Atelopus varius was previously widespread and common in Costa Rica. It was last seen in 1991 during the mass amphibian declines, subsequently rediscovered more than ten years later. There are currently three small populations known in Costa Rica. Credit Robert Puschendorf Usage Restrictions Must be used with Photo credit name 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.