Pete Oxford / Lake Titicaca Frog (Telmatobius culeus) the world's largest aquatic frog, swimming in foreground with researchers in a canoe in background at Lake Titicaca, Andes Mountains, Bolivia and Peru, critical...

Guy Edwardes / Smoky jungle frog (Leptodactylus pentadactylus) in lowland rainforest. Boca Tapada, Costa Rica.

Claudio Contreras / Sabinal Frog (Leptodactylus melanonotus), Ria Lagartos Biosphere Reserve, Yucatan Peninsula, Mexico, July

Claudio Contreras / Sabinal Frog (Leptodactylus melanonotus), Ria Lagartos Biosphere Reserve, Yucatan Peninsula, Mexico, July

Joao Burini / Atlantic forest dwarf frog (Physalaemus olfersii) frog on leaf litter, Intervales State Park, Sao Paulo, Atlantic Forest South-East Reserves, UNESCO World Heritage Site, Brazil.

Lucas Bustamante / Labiated jungle frog (Leptodactylus labrosus) portrait, Canande, Esmeraldas, Ecuador.

Lucas Bustamante / Coastal Ecuador smoky jungle frog / Choco jungle-frog (Leptodactylus peritoaktites) sitting on stone in stream, Canande, Esmeraldas, Ecuador, Vulnerable species.

Melvin Grey / Gold-striped frog (Lithodytes lineatus) adult, Amazon, Ecuador. June.

Joao Burini / Horned frog (Proceratophrys boiei) Parque do Zizo Private reserve, Sao Paulo, Atlantic Forest South-East Reserves, UNESCO World Heritage Site, Brazil.

Jen Guyton / Savage's thin-toed frog (Leptodactylus savagei) camouflaged, Costa Rica.

Alex Hyde / RF - Smoky Jungle Frog (Leptodactylus savageii /pentadactylus) at burrow on rainforest floor at night. Central Caribbean foothills, Costa Rica. (This image may be licensed either as rights managed or...

Alex Hyde / Smoky jungle frog (Leptodactylus savageii / pentadactylus) this huge frog can reach up to 185mm and will eat mammals, Osa Peninsula, Costa Rica

MYN / JP Lawrence / Loreto white-lipped frog (Leptodactylus rhodomystax) San Jose de Payamino, Ecuador. Meetyourneighbours.net project

MYN / JP Lawrence / Loreto white-lipped frog (Leptodactylus rhodomystax) San Jose de Payamino, Ecuador. Meetyourneighbours.net project

Nick Garbutt / Smokey Jungle Frog (Leptodactylus pentadactylus), forests near Napo River, Amazonia, Ecuador, South America.

MYN / Andrew Snyder / Myers' thin-toed frog (Leptodactylus myersi), Kanuku Mountains, Guyana, July. Meetyourneighbours.net project.

MYN / Andrew Snyder / Gold striped frog (Leptodactylus lineatus), Kanuku Mountains, Guyana, July. Meetyourneighbours.net project.

MYN / Andrew Snyder / Gold striped frog (Leptodactylus lineatus), Kanuku Mountains, Guyana, July. Meetyourneighbours.net project.

MYN / Andrew Snyder / Chirping frog (Adenomera andrae), Kanuku Mountains, Guyana, July. Meetyourneighbours.net project.

MYN / Andrew Snyder / Knudsen's thin-toed frog (Leptodactylus knudseni), Berbice River, Guyana, September. Meetyourneighbours.net project.

MYN / Andrew Snyder / Peters' ground frog (Leptodactylus petersi), Berbice River, Guyana, September. Meetyourneighbours.net project.

MYN / Andrew Snyder / Juvenile Knudsen's thin-toed frog (Leptodactylus knudseni), Kanuku Mountains, Guyana, July. Meetyourneighbours.net project.

MYN / Andrew Snyder / Physalaemus cuvieri, Kanuku Mountains, Guyana, July. Meetyourneighbours.net project.

MYN / Andrew Snyder / Myers' thin-toed frog (Leptodactylus myersi), Kanuku Mountains, Guyana, July. Meetyourneighbours.net project.

Roland Seitre / Dawn Fleming, herpetologist with Montserrat mountain chicken frog (Leptodactylus fallax) Durrell Wildlife Park, Jersey. Critically endangered species endemic to Dominica and Montserrat. Part of captiv...

Bert Willaert / Marbled white lipped frog (Leptodactylus elenae) on leaf, Bolivia, November.

Bert Willaert / Lineated frog (Leptodactylus fuscus) portrait, taken against white background, Bolivia.

Bert Willaert / Marbled white lipped frog (Leptodactylus elenae) portrait, taken against white background, Bolivia.

MYN / Andrew Snyder / Ditch frog (Leptodactylus mystaceus) Chenapau, Guyana. Meetyourneighbours.net project.

MYN / Andrew Snyder / Ditch frog (Leptodactylus rhodomystax) Chenapau, Guyana. Meetyourneighbours.net project.

MYN / Andrew Snyder / Tropical bullfrog (Adenomera lutzi) Chenapau, Guyana. Meetyourneighbours.net project.

MYN / Andrew Snyder / Ditch frog (Leptodactylus mystaceus) Chenapau, Guyana. Meetyourneighbours.net project.

MYN / Andrew Snyder / Knudsen's Thin-toed Frog (Leptodactylus knudseni) adult, Chenapau, Guyana. Meetyourneighbours.net project.

MYN / Andrew Snyder / Ditch frog (Leptodactylus rhodomystax) Chenapau, Guyana. Meetyourneighbours.net project.

MYN / Andrew Snyder / Frog (Adenomera lutzi) Chenapau, Guyana. Meetyourneighbours.net project.

MYN / Andrew Snyder / Lineated frog (Leptodactylus fuscus) Parabara, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Myers' thin toed frog (Leptodactylus myersi) Kusad Mountain, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Ditch frog (Leptodactylus mystaceus) Parabara, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Ditch frog (Leptodactylus mystaceus) Parabara, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Lineated frog (Leptodactylus fuscus) Parabara, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Ditch frog (Leptodactylus mystaceus) Parabara, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Lineated frog (Leptodactylus fuscus) Parabara, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Ditch frog (Leptodactylus guianensis) Kanuku Mountains, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Ditch frog (Leptodactylus mystaceus) Kanuku Mountains, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Peter's jungle frog (Leptodactylus petersi) Iwokrama, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Peters' ground frog (Leptodactylus petersi) Yupukari, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Peter's jungle frog (Leptodactylus petersii) Iwokrama, Guyana. Meetyourneighbours.net project

MYN / Andrew Snyder / Knudsen's jungle frog (Leptodactylus knudseni) Kanuku Mountains, Guyana. Meetyourneighbours.net project