Mark Moffett / Golden Poison Dart Frog (Phyllobates terribilis) the most poisonous of the dart frogs, western Colombia

Mark Moffett / Green and Black Poison Dart Frog (Dendrobates auratus) meets a Tarantula, Taboga Island, Panama Tarantulas eat frogs but avoid Poison Dart Frogs, yet on Taboga, such encounters are common and Tarantul...

Doug Wechsler / Phantasmal poison arrow frog {Epipedobates tricolor} in cloud forest, El Oro, Ecuador

Sue Daly / Golden poison dart frog {Phyllobates terribilis}

Doug Wechsler / Black legged poison dart frog {Phyllobates bicolor} Colombia. South America

Pete Oxford / Harlequin Poison Arrow Frog {Dendrobates histrionicus} Ecuador

Lucas Bustamante / Three Strawberry poison frogs (Oophaga pumilio) on rock, Sarapiqui, Heredia, Costa Rica.

Alex Hyde / Strawberry poison frog (Oophaga pumilio) photographed on a white background in mobile field studio, Central Caribbean foothills, Costa Rica

Alex Hyde / Green and black poison frog (Dendrobates auratus) Central Caribbean foothills, Costa Rica

Alex Hyde / Granular poison frog (Oophaga granulifera) Osa Peninsula, Costa Rica. Vulnerable IUCN Red List species.

Lucas Bustamante / Amazonian poison-frog (Ranitomeya ventrimaculata) tadpoles on male's back, Yasuni National Park, Orellana, Ecuador.

Denis-Huot / Granulated poison dart frog (Dendrobates granuliferus) Las Tardes, Costa Rica