Tim Laman / Rufous-sided sticky frog (Kalophrynus pleurostigma) on the ground in the lowland rainforest, Bako National Park, Sarawak, Borneo, Malaysia

Roland Seitre / Crested Forest Toad (Rhinella margaritifer / Bufo typhonius). Captive. Cali Zoo, Cali, Colombia.

Roland Seitre / German Corredor, biologist, on a frog surveying expedition, with a Cauca Poison Frog (Ranitomeya bombetes), an endangered species. Valle Dagua, Cali, Colombia, January 2010.

Roland Seitre / Cauca Poison Frog (Ranitomeya bombetes) being sexed by examination of the mouth. Endangered. Valle Dagua, Cali, Colombia, January 2010.

Roland Seitre / Cauca Poison Frog (Ranitomeya bombetes) being sexed by examination of the mouth. Endangered. Valle Dagua, Cali, Colombia, January 2010.

Roland Seitre / Catalina Silva, biologists on a frog surveying expedition, with a Cauca Poison Frog (Ranitomeya bombetes), an endangered species. Valle Dagua, Cali, Colombia, January 2010.

Roland Seitre / Toad Mimic rainfrog (Strabomantis / Craugastor bufoniformis) El Valle Amphibian Conservation Center, Panama, Central America

Roland Seitre / Banded Horned Treefrog (Hemiphractus fasciatus / Cerathyla panamensis) El Valle Amphibian Conservation Center, Panama, Central America, near threatened species

Roland Seitre / Banded Horned Treefrog (Hemiphractus fasciatus / Cerathyla panamensis) El Valle Amphibian Conservation Center, Panama, Central America, near threatened species

Roland Seitre / Vicente's poison frog (Oophaga / Dendrobates vicentei) El Valle Amphibian Conservation Center, Panama, Central America

Roland Seitre / Banded horned treefrog (Hemiphractus fasciatus / Cerathyla panamensis) El Valle Amphibian Conservation Center, Panama, Central America, near threatened species

Roland Seitre / Frog (Strabomantis bufoniformis) held in hand at the El Valle Amphibian Conservation Center, Panama, Central America, March 2008