Living in the forest canopy, Rabb’s fringe-limbed treefrog shows a remarkable behaviour when threatened, leaping from the treetops and using its outstretched limbs and large, webbed hands and feet to glide through the air (2) (3) (4). Individuals have been seen to leap from heights of up to nine metres and land safely on the ground (2). The species is active at night (2), and is likely to feed on a variety of insects, such as crickets and cockroaches (3).
Male Rabb’s fringe-limbed treefrogs appear to be territorial, calling to defend water-filled tree holes in which breeding takes place (2) (3) (4). The call consists of a single ‘grrrrrck’, repeated at regular intervals for up to two minutes at a time. Males may call throughout the year, although breeding activity usually peaks between mid-March and May, at the start of the rainy season (2).
In addition to defending the tree hole, the calls of the male Rabb’s fringe-limbed treefrog may serve to attract females to the site, and several females may lay eggs in the hole throughout the year. The eggs are deposited just above the waterline, on exposed bark or wood, with clutch size estimated to range from around 60 to as many as 200 eggs (2).
After laying the eggs, the female Rabb’s fringe-limbed treefrog leaves, but the male remains at the hole and guards the eggs and tadpoles. In an extreme form of parental care, the male may even allow the tadpoles to feed on its skin, which the tadpoles apparently scrape off in small flecks as the male lies half submerged in the water (2) (3) (4).