‘Hidden’ lungs found in Borneo frogs

Researchers have long believed that the Kalimantan barburula, a tiny frog native to the cold streams of western Borneo, is the only species without lungs. However, new observations by specialists from the Florida Museum of Natural History have shown that these organs are still present in this unique frog.

It was previously thought that the lack of lungs was an adaptation to the aquatic habitat of this species. However, the use of a high-resolution microscanner allowed scientists to detect tiny, thin lungs that were “hidden” and not visible during normal observations.