THERE IS A species of glass frog which has transparent skin over its belly.
However, a recently discovered new species from Amazonian Ecuador goes a step further to fully expose its heart thanks to the transparent skin stretching all over its chest as well as its belly.
It can also be distinguished by the relatively large dark green spots at the back of its head and the foremost part of the body. Additionally, the species has a characteristic long call.
The new frog is named Hyalinobatrachium yaku, where the species name (yaku) translates to ‘water’ in the local language Kichwa. Water and, more specifically, slow-flowing streams are crucial for the reproduction of all known glassfrogs.
The reproductive behaviour is also quite unusual in this species. Males are often reported to call from the underside of leaves and look after the egg clutches.
Having identified individuals of the new species at three localities, the researchers note some behavioural differences between the populations.
The studied frogs at one location have been perching on leaves of small shrubs, ferns, and grasses some 30 to 150 cm above the ground. Surprisingly, each of them has been at a distance greater than 30 metres from the nearest stream.
The researchers note that, given the geographic distance of approximately 110 km between the localities where the new species has been found, it is likely that the new species has a broader distribution, including areas in neighbouring Peru.
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