Red Eyed Tree Frog, Costa RicaRed-eyed tree frogs in the Piedras Blancas region of Costa Rica often show subtle differences from their Caribbean-side counterparts, including deeper body coloration and variations in the blue-and-yellow flank striping. These regional differences reflect geographic isolation and local habitat conditions across Costa Rica’s distinct ecosystems. Even within a single species, populations can vary in appearance depending on where they live. Nikon Z8 with Nikkor 500mm PF lens, ISO 1000, f/8 at 1/160th of a second, Godox V860III flash.