Lungless salamanders are a unique group of amphibians that belong to the family Plethodontidae. Unlike most salamanders, they do not have lungs and breathe through their skin and the lining of their mouths. This adaptation allows them to thrive in moist environments, where they can absorb oxygen directly from the air or water. These salamanders are typically small and are found in various habitats, including forests and streams. They play an important role in their ecosystems by controlling insect populations and serving as prey for larger animals. Their sensitivity to environmental changes makes them valuable indicators of ecosystem health.