Nick kicks off 2021 with Dennis Caldwell, a local graphic designer whose boots have been on the ground for many environmental projects around southern Arizona. Specializing in aquatic species conservation, Dennis introduces us to a small but remarkably resilient cast of characters (including the desert pupfish, Chiricahua leopard frog, Huachuca water umbel, and Gila chub) as well as the often-unsung efforts to restore their habitat in the face of worsening drought. If you're curious about the ecological, as well as cultural, significance of many of these habitats, the NPS website for Organ Pipe Cactus National Monument is a good place to start...