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This Frogs made great postures for pictures and they don't mind if you get close-up with them. Also known as the Borneo Eared Frog, this large tree frog inhabits lowland rainforest up to elevations of around 400 metres. It is most commonly found grouped around suitable breeding ponds, clinging to nearby vegetation a few metres from the ground. The species is easily identified by its large size and by the prominent ridges which lie above the eye and external ear-drum or tympanum. Another flap of skin extends horizontally beneath the tympanum. Its dorsal surface is pale yellow brown adorned with dark brown stripes. The flanks show similar colour and patterning but the dark stripes are more thin. On the inner thighs and legs there is strong black banding on a white background. Its eyes are large with a horizontal iris. Like other species of tree frog, their eggs are fertilized and develop in foam nests above suitable water bodies. The tadpoles will hatch and drop into the water below, or get washed down by heavy rain. Full-grown tadpoles may reach 6 cm in length.
Swampy tropical forest. Polypedates otilophus occurs only on the islands of Sumatra and Borneo.