Borneo Eared Frog

Borneo Eared Frog Polypedates otilophus

Type of Animal:

Lowland forest, tropical rainforest, forest edges, secondary forest, secondary habitats, villages, ponds, oil palm plantations, tree plantations, temporary rain pools, streams, logging areas


Robust dorsally lemon-yellow to tan to pale brown body to whitish w/ thin faded black stripes, creamy to white belly, black barring on thighs, serrated bony crest above tympanum, large disked fingertips, tadpoles yellowish green above/white below, females have wider stouter heads & larger than males, tadpoles develop black stripe 2 weeks before metamorphosis

Insects & insect larvae

Status in Wild:

Breeding in zoos, aquariums, & herpetoculture

Small groups of 4-8 frogs

Additional Info:

Young: Tadpole
Group: Army

Male: 4 oz
Female: 6.4 oz
10 days-2 months

Life Span:
5 years

Body Length:
Male: 3.1 in
Female: 3.9 in
Young: 2.2 in

Also called File-Eared Tree Frog, Bony-Headed Flying Frog, Borneo Eared Tree Frog, Borneo File-Eared Frog, & Borneo Long-Eared Frog.
They’re active at night (nocturnal).
Females lay clutches of 44-119 eggs in foam nests above water bodies. Nests created by beating frothy secretion into foam w/ hind legs. When tadpoles hatch, they fall right into water & live in water for 1st 2-2.5 months of life, then losing gills/tail & leaving water, entering froglet stage, which they stay in until reaching maturity at 10-12 months old.
They’re masters of camouflage.
They’re very shy in the wild & in captivity.
They’re arboreal & like to climb.
They’re fairly fast & agile frogs.

Fun Fact(s):
Gets name from prominent ridges behind eyes that look like big spiky ears.
Head/leg shape help them glide through air. Webbing on legs helps w/ gliding.
Smooth skin helps them climb up tree trunks/hang upside down. Sometimes seen hanging off leaves/tree branches by 1 long toe.

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