Chien Lee / Ecuador Poison Frog (Epipedobates bilinguis), El Coca, Ecuador

Konrad Wothe / Three-striped poison frog (Ameerega trivittata) croaking, Panguana Reserve, Huanuco Region, Peru.

Lucas Bustamante / Anthony's poison-frog (Epipedobates anthonyi) seen through hole in leaf. Buenaventura Reserve, El Oro, Ecuador.

Pete Oxford / Phantasmal Poison Dart Frog (Epipedobates tricolor), native to South America

Pete Oxford / Anthony's Poison Arrow Frog (Epipedobates anthonyi) male carrying tadpoles, native to South America

Pete Oxford / Anthony's Poison Arrow Frog (Epipedobates anthonyi), native to South America

Bert Willaert / Marbled poison dart frog (Epipedobates boulengeri) on leaf, Ecuador.

MORLEY READ / Poison arrow frog {Dendrobates / Epipedobates bilinguis} Yasuni NP, Ecuador

Pete Oxford / Poison arrow frog guarding its eggs {Epipedobates tricolor} Ecuador

Mark Moffett / Phantasmal Poison Dart Frog (Epipedobates tricolor) near Cuenca, Ecuador this frog exudes epibatidine, a chemical with analgesic qualities two hundred times as powerful as morphine

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

Pete Oxford / Poison Arrow Frog (Epipedobates tricolor) Ecuador Amazon South-America. colourful.