Frogs With No Lungs Discovered in Borneo

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This funny looking frog found recently in the Indonesian section of Borneo has scientists very excited. Besides being a very rare breed, it also has no lungs!

The frog dubbed Barbourula Kalimnatanesis, is the first lungless frog ever discovered. In fact there are only a couple of other creatures - a kind of salamander and one snakelike amphibian that have no lungs.

The two-inch frog seems to breath through its skin, much like other frogs. However, it also has no airway opening in its throat and only a membrane lining in its thoracic cavity.

Animals developed lungs when they moved from the sea to land millions of years ago. Scientists believe this frog has evolved backwards - that is - it lost its lungs. While they don't know for sure, they believe it maybe because of extremely cold and rapid water streams, which have a lot of dissolved oxygen to absorb. Frogs have a low metabolism so do not need that much oxygen.

Scientists believe that by studying this backward evolution, they may be able to find out how lungs developed.

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96 Comments
  • minecraft_kat26
    minecraft_kat26Saturday, October 17, 2020 at 10:46 am
    cool!!!! follow to agree!!!
    • dank memesSaturday, April 6, 2019 at 7:43 am
      Cool. Subscribe to PewDiePie.
      • eva the funSunday, March 3, 2019 at 5:32 pm
        cool frog
        • eva the funSunday, March 3, 2019 at 5:30 pm
          I think this is rad
          • SiriaWednesday, October 31, 2018 at 8:30 am
            I think love this so l love this program
            • Cow girlTuesday, May 22, 2018 at 6:33 am
              Weird but interesting
              • julianaFriday, April 6, 2018 at 6:16 am
                soooooooooooo COOL
                • JennaThursday, March 8, 2018 at 9:08 am
                  Why do they have to be so cool😁😁😁I love frogs😁😁😁Its like I need it in my life😁😁😁😁
                  • 24cortezmartine
                    24cortezmartineTuesday, March 6, 2018 at 12:46 pm
                    This is so cool
                    • Me4 Tuesday, March 6, 2018 at 12:46 pm
                      This is great and interesting