Robert Valentic / Koh Chang Wart Frog (Limnonectes kochangae) from riparian forest, Koh Chang Island, Thailand. Wet season.

Chien Lee / Smooth Guardian Frog (Limnonectes palavensis) male carrying tadpoles, Kubah National Park, Sarawak, Borneo, Malaysia

Paul Bertner / Smooth Guardian Frog (Limnonectes palavensis) sub-adult male, Danum Valley Conservation Area, Sabah, Borneo, Malaysia

Alex Hyde / Giant river frog (Limnonectes leporinus) on muddy riverbank at night, Danum Valley, Sabah, Borneo.

Chien Lee / Smooth Guardian Frog (Limnonectes palavensis) male carrying tadpoles on back, Sarawak, Borneo, Malaysia

Chien Lee / Smooth Guardian Frog (Limnonectes palavensis) males guarding fertilized eggs under dead leaves, Gunung Penrissen, Borneo Highlands, Malaysia

Chien Lee / Giant River Frog (Limnonectes leporinus), Tibu, Batang Ai National Park, Malaysia

Chien Lee / Giant River Frog (Limnonectes leporinus) camouflaged against leaf litter, Lubang Buaya, Batang Ai National Park, Malaysia

Chris Mattison / Kuhl's Creek Frog (Limnonectes kuhlii) Bako National Park, Sarawak, Borneo.

Chris Mattison / Smooth guardian frog (Limnonectes palavanensis) Kinabalu National Park, Sabah, Borneo.

Chris Mattison / Kuhl's Creek Frog (Limnonectes kuhlii) Kinabalu National Park, Sabah, Borneo.

Chris Mattison / Rough Guardian Frog (Limnonectes finchi) Danum Valley, Sabah, Borneo.

Chris Mattison / Giant River Frog (Limnonectes leporinus) Danum Valley, Sabah, Borneo.

Chris Mattison / Rough Guardian Frog (Limnonectes finchi) male carrying tadpoles, Danum Valley, Sabah, Borneo.

Chien Lee / Kuhl's Creek Frog (Limnonectes kuhlii), Sabah, Borneo, Malaysia

Jouan & Rius / Kuhl's creek frog (Rana / limnonectes kuhlii) in stream, Gunung Gading NP, Borneo, Sarawak, Malaysia

Chien Lee / Kuhl's Creek Frog (Limnonectes kuhli), Gunung Penrissen, Borneo, Malaysia

Chien Lee / Corrugated Frog (Limnonectes laticeps), Bako National Park, Malaysia

Chien Lee / Lesser Swamp Frog (Limnonectes paramacrodon), Bintulu, Borneo, Malaysia

Tim Laman / Head portrait of a Giant River frog (Limnonectes leporinus) with a mosquito biting its nose, Borneo, Malaysia

Chien Lee / Rough Guardian Frog (Limnonectes finchi) male transporting tadpoles to a suitable pool of water where he will release them, Danum Valley Conservation Area, Borneo, Malaysia

Chien Lee / Rough Guardian Frog (Limnonectes finchi) male transporting tadpoles to a suitable pool of water where he will release them, Danum Valley Conservation Area, Borneo, Malaysia

Chien Lee / Giant River Frog (Limnonectes leporinus) camouflaged in leaf litter, Danum Valley Conservation Area, Borneo, Malaysia

Chien Lee / True Frog (Limnonectes sp) camouflaged on rock, Indonesia

Chien Lee / True Frog (Limnonectes sp), Kubah National Park, Sarawak, Malaysia

Nick Garbutt / Kuhl's creek frog (Rana / Limnonectes kuhlii) Danum Valley, Sabah, Borneo, Malaysia

Tony Heald / Kuhl's Creek Frog [Rana / Limnonectes kuhlii] Danum Valley, Sabah, Borneo, September

Nature Production / Japanese Keelback snake {Amphiesma vibakari vibakari} predating on a Wrinkled Frog {Limnonectes limnocharis} Japan

Nature Production / Wrinkled Frog {Fejervarya / Limnonectes limnocharis} tadpole (27mm in length, with hind legs), Japan, sequence 4/4

Nature Production / Wrinkled Frog {Fejervarya / Limnonectes limnocharis} tadpole (38mm in length, with hind legs), Japan, sequence 3/4

Nature Production / Wrinkled Frog {Fejervarya / Limnonectes limnocharis} tadpole (27mm in length), Japan, sequence 2/4

Nature Production / Wrinkled Frog {Fejervarya / Limnonectes limnocharis} tadpole (8mm in length), Japan, sequence 1/4

Doug Wechsler / Kuhl's creek frog {Rana kuhlii} with deformed leg, Bentuang-Karimun NP, Indonesia

Doug Wechsler / Peat swamp frog portrait {Rana malesiana} Lanjak-Entinau WS, Sarawak, Borneo

Nick Garbutt / Kuhl's Creek Frog {Limnonectes / Rana kuhlii} on forest floor, Mid-elevation slopes of Mt Kinabalu, Sabah, Borneo.

Chien Lee / Tunnel Frog (Limnonectes cintalubang) male, Siniawan, Sarawak, Borneo, Malaysia