Whether slimy or scaly, colorful or camouflaged, the many different reptiles and amphibians make our world a more exciting place. But facing exceptional declines, we are at risk of losing some of these incredible species forever. These imperiled reptiles and amphibians are priority species whose habitats the PARCA system aims to protect from further loss and fragmentation. Using scientific criteria and expert review, PARCAs are determined by factors like species rarity, richness, regional responsibility, and landscape integrity—an effort that empowers us to conserve remaining populations of these priority reptiles and amphibians nationwide.