Pete Oxford / Giant Titicaca Lake frog {Telmatobius culeus} Lake Titicaca. Bolivia / Peru

Bert Willaert / Titicaca water frog (Telmatobius culeus) swimming underwater, Lake Titicaca, Bolivia. Critically endangered species.

Bert Willaert / Titicaca water frog (Telmatobius culeus) underwater resting on the lake bed, Lake Titicaca, Bolivia. Critically endangered species.

Pete Oxford / Lake Titicaca with local Indian in traditional reed boat and Giant Titicaca frog {Telmatobius culeus} in foreground, captive release, Bolivia

Pete Oxford / Giant Titicaca frog {Telmatobius culeus} Lake Titicaca, Bolivia / Peru largest

Pete Oxford / Giant aquatic frog {Telmatobius escomeli} Altiplano lakes, Peru

Pete Oxford / Giant Titicaca frog {Telmatobius culeus} and researcher Esther Perez, Lake Titicaca. Boliivia / Peru. Totora reed boat in background. 2002

Cyril Ruoso / Lake Titicaca frog (Telmatobius culeus) in man's hands, part of controversial ecotourism project about Lake Titicaca's fauna and flora, Peru

Cyril Ruoso / Lake Titicaca frog (Telmatobius culeus) underwater in Lake Titicaca, Bolivia

Cyril Ruoso / Lake Titicaca frog (Telmatobius culeus) with biologist Arthuro Nunoz diving underwater with frog, a species threatened by poaching, Lake Titicaca, Bolivia

Cyril Ruoso / Lake Titicaca frog (Telmatobius culeus) with biologist Arthuro Nunoz diving underwater with frog, a species threatened by poaching, Lake Titicaca, Bolivia

Bert Willaert / Titicaca water frog (Telmatobius culeus) swimming underwater, Lake Titicaca, Bolivia. Critically endangered species.