. . . . . . . . . "Thamnophis sirtalis sirtalis" . . "Anaxyrus americanus" . . "Ron Payne. 2015. Thamnophis sirtalis sirtalis interaction->preyed on Anaxyrus americanus. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/1989065> on 05 Apr 2018." . . . . "http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world." .