/jl-hole-in-the-head-frog-1.jpg)
/cc-hole-in-the-head-frog.jpg)
1 / 2
Huia cavitympanum
Basic stats
Diet
Invertebrates
Habitat
Rocks beside fast-flowing hill streams
Range
Endemic to Borneo
Clutch size
Several hundred eggs (typical for torrent-associated frogs)
Incubation period
About 1–2 weeks to hatching (typical for torrent-associated frogs)
Size
Medium (45–65mm)
Weight
~10–20g
A genuinely unusual frog, entirely lacking an external eardrum and middle ear cavity — an adaptation linked to research showing this species can produce and detect ultrasonic calls, likely an adaptation to communicate over the loud background noise of fast, rocky streams.
Found on rocks beside fast-flowing hill streams, and considered one of Borneo's more scientifically noteworthy amphibians because of this unusual hearing and calling biology.
