Biologist, David Bickford, said studying the animal could help shed light on how lungs evolved in the first place.
"The evolution of lunglessness in tetrapods (amphibians, reptiles, birds, and mammals) is exceedingly rare, previously known only from amphibians - two families of salamanders and a single species of caecilian (blindworm)," they wrote.
"Here we report the first case of complete lunglessness in a frog, Barbourula kalimantanensis, from the Indonesian portion of Borneo."
StoryTeller: David Bickford, National University of Singapore
Gasp! Scientists find first lungless frog