Oophaga granulifera and ranger

CRI, Costa Rica, man, ranger, moustache, frog, poison dart frog, arm, venes, Oophaga granulifera | CRI, Costa Rica, Oophaga granulifera, Mann, Ranger, Bart, Frösche, Frosch, Pfeilgiftfrosch, Pfeilgiftfrösche, Arm, Venen