. . . . . . . . . "Bufo bufo" . . "Natrix natrix" . . "alberto1. 2017. Bufo bufo interaction->preyed upon by Natrix natrix. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/7543314> 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." .