Frog without lungs found in Indonesia

David Bickford, an evolutionary biologist at the National University of Singapore writes:the species is the first frog known to science without lungs and joins a short list of amphibians with this unusual trait

Bickford and Gillespie said the frog's discovery adds urgency to the need to protect its river habitat, which in recent years has become polluted due to widespread illegal logging and gold mining. Once-pristine waters are now brown and clogged with silt, they said."The gold mining is completely illegal and small scale. But when there are thousands of them on the river, it really has a huge impact," Bickford said. "Pretty soon the frogs will run out of the river."

the link writes:"It's an extreme adaptation that was probably brought about by these fast-moving streams," Bickford said, adding that it probably needed to reduce its buoyancy in order to keep from being swept down the mountainous rivers.