. . . . . . . . . "Natrix natrix" . . "Bufo bufo" . . "Corrado Alessandrini. 2015. Natrix natrix interaction->preyed on Bufo bufo. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/5497946> 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." .