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Borneo Eared Frog


Quick Facts

Scientific name: Polypedates otilophus
Class: Amphibian
Shoulder height: Males: 2.5 to 3.1 inches; Females: 3.2 to 3.5 inches
Life span: 5 to 10 years
Gestation: almost 4 months
Number of offspring: 1 to 6, usually 3 to 4 in a litter
Conservation status: Least Concern


Ears? Where?

The Borneo eared frog doesn’t have ears like humans do. Instead, this species is identified best by looking above the eyes for small bubbles on the skin that look like small drum heads. This is the frog’s external eardrum or tympanum.

It’s a bird … plane … frog?

People also know Borneo eared frogs as bony-headed flying frogs. The shape of their heads and their legs help them glide through the air. The legs have more webbing that acts like a glider while the spines of their head splits the air as they fly.


Borneo eared frogs look like they have rough skin because of the black flecks on their skin. They are super smooth, though. Their smooth skin helps them climb up tree trunks and hang upside down! They are known for hanging off leaves and tree branches by on long toe!


Learn more about our efforts, our conservation partners around the world, and the simple steps you can take to contribute.