Overview
The Bompu Litter Frog (Leptobrachium bompu) is one of the most enigmatic and visually astonishing amphibians discovered in modern times. Described by herpetologists in 2011 from the dense, cloud-wrapped slopes of the Eastern Himalayas in Arunachal Pradesh, India, this compact forest dweller captivated the biological world with its most startling attribute: mesmerizing, glowing sky-blue irises that shine brilliantly against its deep greyish-brown body like living sapphires.
Biology and Physical Characteristics
Leptobrachium bompu is characterized by a squat, plump body, short slender limbs, and a broad, rounded head. Its dorsal skin is finely granular and colored in velvety dark grey, slate-blue, and earthen brown, providing sublime camouflage among rotting forest foliage. Yet its eyes are utterly unique in the animal kingdom, possessing a brilliant, unpigmented sky-blue iris with a contrasting vertical black pupil that gives it an otherworldly, glowing appearance in the dim forest understory.
Behavior and Ecology
The Bompu Litter Frog is a cryptozoic, strictly nocturnal specialist that spends daylight hours concealed deep within layers of damp decomposing leaves and rotting logs on steep mountain slopes. At night, males emerge onto mossy boulders and low streamside shrubs, uttering a rhythmic, low-pitched croak consisting of resonant clicking pulses to attract females. Breeding takes place in cool, crystal-clear torrential hill streams, where females attach egg clutches to the undersides of submerged stones.
Conservation and Human Impact
Currently evaluated as Data Deficient by the IUCN due to its recent discovery and remote montane distribution, the Bompu Litter Frog is protected within the Eaglenest Wildlife Sanctuary—a globally celebrated biodiversity hotspot in the Eastern Himalayas. Potential threats include road construction, military infrastructure development, and climate-induced warming that could dry out its delicate montane mist belt.
Interesting Factoid
The electric sky-blue irises of the Bompu Litter Frog are so vivid and luminous that researchers who first stumbled upon the species at night initially mistook them for tiny reflective drops of dew glowing in their headlamp beams.
Last updated: October 2026