Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 18 days development, the tadpoles are fully developed and ready to hatch, Ecuador. Endangered. (non-ex)

Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 11 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered. (non-ex)

Morley Read / Developing embryo of the Ecuadorian monkey frog (Phyllomedusa ecuatoriana), showing heart beating and blood flowing, Morona Santiago Province, Ecuador, (non-ex)

Brian Bevan / Surinam horned frog (Ceratophrys cornuta) eating a locust, UK. Captive, native to the Americas.

Angelo Gandolfi / Snorkeller with shoal of Piraputanga (Brycon hilarii), Rio Olha d'Agua at Cabeceira do Prata, Bonito, Mato Grosso do Sul, Brazil

Rolf Nussbaumer / Cane Toad / Marine Toad / Giant Toad (Bufo marinus) adult jumping in Dogweed (Dyssodia pentachaeta) field. Laredo, Webb County, South Texas, USA, April.

Rolf Nussbaumer / Cane Toad / Marine Toad / Giant Toad (Bufo marinus) adult in desert. Laredo, Webb County, South Texas, USA, April.

Doug Wechsler / Giant toad showing paratoid gland behind eye {Bufo marinus} Costa Rica Guanacaste NP,

Pete Oxford / Giant toad (Bufo marinus), Ecuador

Doug Wechsler / Giant toad {Bufo marinus} introduced species to Puerto Rico, Caribbean

Doug Wechsler / Giant (Marine) toad, Guanacaste NP, Costa Rica

Fabio Liverani / Giant toad in muddy water, Italy, Europe