Nick Garbutt / Harlequin Tree Frog {Rhacophorus pardalis} portrait, Danum Valley, Sabah, Borneo.

Michael & Patricia Fogden / Harlequin Frog (Atelopus varius) displaying colorful warning colors, cloud forest, Costa Rica

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

Morley Read / Pair of Stubfoot toads (Atelopus) in amplexus, Cordillera del Condor, Zamora Chinchipe Province, Ecuador. (non-ex)

Morley Read / Pair of Stubfoot toads (Atelopus) in amplexus, Cordillera del Condor, Zamora Chinchipe Province, Ecuador. (non-ex)

Morley Read / Pair of Stubfoot toads (Atelopus) in amplexus, Cordillera del Condor, Zamora Chinchipe Province, Ecuador. (non-ex)

Morley Read / Pair of Stubfoot toads (Atelopus) in amplexus, Cordillera del Condor, Zamora Chinchipe Province, Ecuador. (non-ex)

David Perpinan / Assisted feeding in a Panamanian golden frog (Atelopus zeteki) in a captive breeding program. United States. August 2007. Critically endangered. small repro only

Chien Lee / Harlequin Poison Dart Frog (Dendrobates histrionicus), Utria National Park, Colombia

Chien Lee / Black-headed Cat Snake (Boiga nigriceps) swallowing alive Harlequin Flying Tree Frog (Rhacophorus pardalis) prey, Kubah National Park, Sarawak, Malaysia, sequence 4 of 4

Chien Lee / Black-headed Cat Snake (Boiga nigriceps) swallowing alive Harlequin Flying Tree Frog (Rhacophorus pardalis) prey, Kubah National Park, Sarawak, Malaysia, sequence 3 of 4

Lucas Bustamante / Longnose harlequin frog (Atelopus sp) on leaf, Chinambi, Carchi, Ecuador.