Sources:
Johnson, S. A. 2020. Department of Wildlife Ecology & Conservation. UF Wildlife-Johnson Lab. Accessed November 2020 online at: https://ufwildlife.ifas.ufl.edu/frogs...
Outdoor Alabama .2020. Alabama Department of Conservation and Natural Resources. Eastern Narrow-mouthed Toad. Accessed November 2020 online at: https://www.outdooralabama.com/frogs-...
Tennessee Wildlife Resources Agency. 2020. Eastern Narrow-mouthed Toad. Accessed November 2020 online at: https://www.tn.gov/twra/wildlife/amph...
United States Geological Survey (USGS). 2020. Patuxent Wildlife Research Center. USGS Frog Quizzes. Accessed November 2020 online at: https://www.pwrc.usgs.gov/frogquiz/in...
Pierson Photos: https://calphotos.berkeley.edu/cgi/ph...