. . . . . . . . . "Thamnophis sirtalis infernalis" . . "Anaxyrus boreas" . . "Gretchen LeBuhn. 2016. Thamnophis sirtalis infernalis eating Anaxyrus boreas. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/3223531> 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." .