Resumen de Rainbow frogs
In the archipelago of Bocas del Toro, Panama, frogs come in a dizzying array of colors. Each island has a different-hued version of the strawberry poison frog (Oophaga pumilio). The islands are thought to have separated from the mainland about 10,000 years ago, creating isolated frog populations. Here, Klein features photographer Paul Bertner's picture of four frogs from four different islands
