Duncan Murrell / File-eared tree frog / Borneo eared frog (Polypedates otilophus), Danum Valley Conservation Area, Sabah, Malaysian Borneo.

Paul Bertner / Bornean Eared Frog (Polypedates otilophus) eye, Danum Valley Conservation Area, Sabah, Borneo, Malaysia

Chris Mattison / File-eared tree frog (Polypedates otophilus) captive on white background, occurs in South East Asia.

Edwin Giesbers / Borneo eared frog (Polypedates otilophus) captive, occurs in South East Asia.

Edwin Giesbers / Borneo eared frog (Polypedates otilophus) captive, occurs in South East Asia.

Melvin Grey / File-eared tree frog (Polypedates otilophus) Kuala Belalong Field Studies Centre, Brunei. Controlled conditions.

Nick Garbutt / Bornean file-eared frog (Polypedates otilophus), large female. Danum Valley, Sabah, Borneo.

Chris Mattison / File-eared Treefrog (Polypedates otilophus) Danum Valley, Sabah, Borneo.

Christian Ziegler / Bornean Eared Frog (Polypedates otilophus), Lambir Hills National Park, Sarawak, Malaysia

Chien Lee / Bornean Eared Frog (Polypedates otilophus), Lawas, Sarawak, Borneo, Malaysia

Chien Lee / Bornean Eared Frog (Polypedates otilophus), Kubah National Park, Malaysia

Tim Laman / Portrait of File-eared Tree Frog (Polypedates otilophus) perched on the branch in the lowland rain forset in Borneo. Danum Valley Conservation Area, Sabah, Malaysia