For decades, scientists have assumed that the hundreds of species of salamanders that lack lungs actually “breathe” through their skin and the lining of the mouth, and Harvard researchers are providing the first concrete evidence for how they do it.
For decades, scientists have assumed that the hundreds of species of salamanders that lack lungs actually “breathe” through their skin and the lining of the mouth, and Harvard researchers are providing the first concrete evidence for how they do it.