Crocodiles leave their mouths open for long periods of time, and we don’t really know why. We also take a long tangent on the swiftlet nest business and what wee reptiles are cashing in themselves.
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Main Paper References:
Price C, Ezat MA, Hanzen C, Downs CT. 2022. Never smile at a crocodile: Gaping behaviour in the Nile crocodile at Ndumo Game Reserve, South Africa. Behavioural Processes 203:104772. DOI: 10.1016/j.beproc.2022.104772.
Other Mentioned Papers/Studies:
Quah ESH, Chong JL. 2022. Reptile predators of swiftlets (genus Aerodramus) with a focus on their impact on the swiftlet farming industry. Herpetology Notes.
Wüster, W., & Tillack, F. 2023. On the importance of types and the perils of “en passant” taxonomy: a brief history of the typification of Coluber naja Linnaeus, 1758 (Serpentes: Elapidae) and its implications, with the designation of a lectotype. Zootaxa, 5346(4), 403-419.
Other Links/Mentions:
AmphibiaWeb. 2023. University of California, Berkeley, CA, USA. Accessed 28 Sep 2023. https://amphibiaweb.org/cgi/amphib_query?where-scientific_name=Hyperolius+tuberilinguis&rel-scientific_name=contains&include_synonymies=Yes
Audio from flamelily via iNaturalist: https://www.inaturalist.org/observations/152630015
Editing and Music:
Podcast edited by Emmy – https://www.fiverr.com/emmyk10 
Intro/outro – Treehouse by Ed Nelson
Species Bi-week theme – Michael Timothy
Other Music – The Passion HiFi, https://www.thepassionhifi.com