Plethodon is a genus of lungless salamanders found primarily in North America. These small amphibians breathe through their skin and the lining of their mouths, which allows them to thrive in moist environments. They are known for their vibrant colors and patterns, which can vary significantly among species. These salamanders typically inhabit forests and are often found under rocks, logs, or leaf litter. Plethodon species are important indicators of environmental health, as they are sensitive to changes in their habitat. Their diet mainly consists of small invertebrates, making them vital players in their ecosystems.