Herpetological Highlights

New research suggests that tokay geckos can distinguish between different people, shedding further light on the intelligence of lizards. We delve into this study and voice warranted concerns about the intelligence of these little maniacs.

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Main Paper References:

Damas-Moreira I, Bégué L, Ringler E, Szabo B. 2025. Tokay geckos adjust their behaviour based on handler familiarity but according to context. Scientific Reports 15:11364. DOI: 10.1038/s41598-025-95936-5.

Other Mentioned Papers/Studies:

Correa, C., Riveros-Riffo, E., & Donoso, J. P. (2025). Lost for more than a century: the rediscovery of Alsodes vittatus (Philippi, 1902)(Anura, Alsodidae), one of the rarest and most elusive amphibians from Chile. ZooKeys, 1230, 195.

Other Links/Mentions:

Pensoft Publishers. 2025.Ghost Frog Found: Scientists Stumble Upon Species Missing Since 1902. Available at https://scitechdaily.com/ghost-frog-found-scientists-stumble-upon-species-missing-since-1902/ (accessed May 1, 2025).

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

Other Music – The Passion HiFi, https://www.thepassionhifi.com

Almost all pythons and some boas have heat pits on their faces. This extraordinary adaptation lets these snakes 'see' the heat signature of their unsuspecting prey. A new study has determined the evolutionary history of these amazing attributes, and worked out whether they are more prevalent in snakes with certain lifestyles.

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Full reference list available here: http://www.herphighlights.podbean.com

Main Paper References:

Biswas A, Ghosh A, Agashe M. 2025. In ‘hot’ pursuit: exploring the evolutionary ecology of labial pits in boas and pythons. Proceedings of the Royal Society B: Biological Sciences 292:20250199. DOI: 10.1098/rspb.2025.0199.

Species of the Bi-Week:

Albuquerque NR, Martins RH, Carvalho PS, Shepard DB, Santana DJ. 2025. A new species of parrot snake, Leptophis (Serpentes: Colubridae) from the Brazilian Cerrado. PeerJ 13:e18528. DOI: 10.7717/peerj.18528.

Other Mentioned Papers/Studies:

Bontrager DR, Christie JT, Pierce AJ, Artchawakom T, Waengsothorn S, Jones MD. 2025. Ritualistic Male–Male Combat of the Northern King Cobra (Ophiophagus hannah) in Thailand. Ecology and Evolution 15:e71191. DOI: 10.1002/ece3.71191.

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

Other Music – The Passion HiFi, https://www.thepassionhifi.com

Day geckos and certain plants share a long evolutionary history, with day geckos feasting on nectar and in return pollinating plants. A study from back in the mid 2000s proved this neatly, and we delve into it this episode. After that, we have a snake eating somebody's underwear, and a very novel new method for controlling invasive cane toads in Australia.

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Full reference list available here: http://www.herphighlights.podbean.com

Main Paper References:

Hansen DM, Beer K, Müller CB. 2006. Mauritian coloured nectar no longer a mystery: a visual signal for lizard pollinators. Biology Letters 2:165–168. DOI: 10.1098/rsbl.2006.0458.

Other Links/Mentions:

Brann M. 2025. Woman finds python eating her bra and shirt for breakfast. ABC News. https://www.abc.net.au/news/2025-02-25/cattle-producer-finds-python-eating-bra-and-shirt/104976022

de Kruijff P. 2025. Cannibal cane toad tadpoles that never grow up could help toad control. ABC News. https://www.abc.net.au/news/science/2025-04-08/cane-toad-created-that-never-grows-up-and-eats-its-siblings/105100286

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

Other Music – The Passion HiFi, https://www.thepassionhifi.com

Intro visuals – Paul Snelling

A new study has proven that ancient iguanas rafted over sea all the way from North America to Fiji, a staggering 8,000 km away. We discuss this epic voyage, and then turn our attention to a colourful new species of wolf snake from Myanmar. 

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Full reference list available here: http://www.herphighlights.podbean.com

Main Paper References:

Scarpetta SG, Fisher RN, Karin BR, Niukula JB, Corl A, Jackman TR, McGuire JA. 2025. Iguanas rafted more than 8,000 km from North America to Fiji. Proceedings of the National Academy of Sciences 122:e2318622122. DOI: 10.1073/pnas.2318622122.

Species of the Bi-Week:

Van Nguyen T, Lee Jl, Jiang K, Ding L, Chit Mat, Poyarkov Na, Vogel G. 2025. A new species of wolf snake Lycodon Fitzinger, 1826 from China and Myanmar (Squamata: Colubridae), and new data on Lycodon gongshan Vogel & Luo, 2011. Zootaxa 5621:1–51. DOI: 10.11646/zootaxa.5621.1.1.

Other Links/Mentions:

Bakar F. 2019.Frogs who married “to bring rain” to Indian village get divorced. Available at https://metro.co.uk/2019/09/15/frogs-who-married-to-bring-rain-to-indian-village-get-divorced-because-of-too-much-downpour-10745884/ (accessed April 30, 2025).

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

Other Music – The Passion HiFi, https://www.thepassionhifi.com

Intro visuals – Paul Snelling

Are rare meadow vipers under threat from the world’s smoothest snake? We find out, then we chat about why asp vipers come in different colours. 

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Full reference list available here: http://www.herphighlights.podbean.com

Main Paper References:

Wenner B, Móré A, Radovics D, Bancsik B, Budai M, Rák G, Kovács G, Szabolcs M, Korsós Z, Mizsei E. 2025. The Smooth Snake is not a threat to the Meadow Viper: predator–prey interactions of a reptile specialist snake. Community Ecology. DOI: 10.1007/s42974-025-00234-9.

Dubey S, Zwahlen V, Mebert K, Monney J-C, Golay P, Ott T, Durand T, Thiery G, Kaiser L, Geser SN, Ursenbacher S. 2015. Diversifying selection and color-biased dispersal in the asp viper. BMC Evolutionary Biology 15:99. DOI: 10.1186/s12862-015-0367-4.

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

Other Music – The Passion HiFi, https://www.thepassionhifi.com

Intro visuals – Paul Snelling

This episode is all about the problems rattlesnakes face in the wild. A brilliant new study uncovers whether predatory birds in America are resistant to the toxins of the rattlesnakes they eat, and then we talk about how rattlesnakes deal with the problem of getting water in dry environments. Finally, a beautiful new species of pitviper has been described from Thailand.

Become a Patreon: https://www.patreon.com/herphighlights

Merch: https://www.redbubble.com/people/herphighlights/shop

Full reference list available here: http://www.herphighlights.podbean.com

Main Paper References:

Balchan NR, Crowther TW, Kratz G, Mackessy SP. 2025. Raptors without resistance: No evidence for endogenous inhibition of rattlesnake venom metalloproteinases in a Great Plains raptor assemblage. Toxicon 256:108275. DOI: 10.1016/j.toxicon.2025.108275.

McIntyre MG, Van Mierlo M, Parker MR, Goetz SM, Taylor EN, Boback SM. 2024. Rain-harvesting behavior in free-ranging prairie rattlesnakes (Crotalus viridis). Current Zoology:zoae069. DOI: 10.1093/cz/zoae069.

Species of the Bi-Week:

Pawangkhanant P, Idiiatullina SS, Smits T, Dugdale I, Pierce A, Suwannapoom C, Poyarkov NA. 2025. A NEW SPECIES OF KARST-ASSOCIATED PITVIPER OF THE Trimeresurus kanburiensis COMPLEX (SQUAMATA: VIPERIDAE) FROM EASTERN THAILAND. Taprobanica 14. DOI: 10.47605/tapro.v14i1.347.

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

Other Music – The Passion HiFi, https://www.thepassionhifi.com

Intro visuals – Paul Snelling

Some tree-dwelling salamanders have a remarkable ability to ‘sky-dive’, controlling their descent after leaping away from predators. New research tests the gliding ability of a number of different species, and finds that some are more adept than others. We follow up with a brand new frog species described from Kangaroo Island, Australia. 

Become a Patreon: https://www.patreon.com/herphighlights

Merch: https://www.redbubble.com/people/herphighlights/shop

Full reference list available here: http://www.herphighlights.podbean.com

Main Paper References:

Brown CE, Sathe EA, Dudley R, Deban SM. 2022. Aerial maneuvering by plethodontid salamanders spanning an arboreality gradient. Journal of Experimental Biology 225:jeb244598. DOI: 10.1242/jeb.244598.

Species of the Bi-Week:

Parkin T, Rowley JJL, Elliott-Tate J, Mahony MJ, Sumner J, Melville J, Donnellan SC. 2024. Systematic assessment of the brown tree frog (Anura: Pelodryadidae: Litoria ewingii) reveals two endemic species in South Australia. Zootaxa 5406:1–36. DOI: 10.11646/zootaxa.5406.1.1.

Other Mentioned Papers/Studies:

Brown, C. E., Goldenberg, W. P., Hinds, O. M., O'Donnell, M. K., & Staub, N. L. (2025). Vascular and Osteological Morphology of Expanded Digit Tips Suggests Specialization in the Wandering Salamander (Aneides vagrans). Journal of Morphology, 286(1), e70026.

Other Links/Mentions:

Sounds of Northern Pacific Treefrog - Pseudacris regilla. Available at https://californiaherps.com/frogs/pages/p.regilla.sounds.html (accessed February 18, 2025).

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

Other Music – The Passion HiFi, https://www.thepassionhifi.com

Intro visuals – Paul Snelling

We are talking about our own work this week, focusing on our latest research into Europe’s foremost colubrid, the Aesculapian snake. We chat about radio-tracking these beasts and dive into some of the media coverage this study has received. Finally, we touch on some good conservation news from the Zoological Society of London.

Become a Patreon: https://www.patreon.com/herphighlights

Merch: https://www.redbubble.com/people/herphighlights/shop

Full reference list available here: http://www.herphighlights.podbean.com

Main Paper Reference:

Major T, Jeffrey L, Limia Russel G, Bracegirdle R, Gandini A, Morgan R, Marshall BM, Mulley JF, Wüster W. 2025. A reliance on human habitats is key to the success of an introduced predatory reptile. PLOS ONE 20:e0310352. DOI: 10.1371/journal.pone.0310352.

Other Mentioned Papers/Studies:

Major, T., Bracegirdle, R., Gandini, A., Russell, G. L., Pozzi, A. V., Morgan, R., ... & Wüster, W. (2023). Mate today, gone tomorrow: male on female cannibalism in Zamenis longissimus (Laurenti, 1768) in North Wales. Herpetology Notes, 16, 51-54.

Other Links/Mentions:

BBC Radio 4 inside science (Tom at 20:35): https://www.bbc.co.uk/sounds/play/m0027txb 

Conversation article about Aesculapian snakes: https://theconversation.com/britain-has-a-new-snake-species-should-climate-change-mean-it-is-allowed-to-stay-249043 

Leap of Hope documentary: https://www.youtube.com/watch?v=fs1SIs0KRlk&ab_channel=ZSL-ZoologicalSocietyofLondon 

Sample I. 2025. Endangered frogs born at London zoo after rescue mission in Chile. The Guardian.

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

Other Music – The Passion HiFi, https://www.thepassionhifi.com

Intro visuals – Paul Snelling

Salamanders and frogs return to their home pools to breed, but removal of these pools is making life more difficult for them. New research discovers how artificial pools can affect the genetics and fates of both spotted salamanders and wood frogs.

Become a Patreon: https://www.patreon.com/herphighlights

Merch: https://www.redbubble.com/people/herphighlights/shop

Full reference list available here: http://www.herphighlights.podbean.com

Main Paper References:

Winters DM, Wilson E, Coster SS, Rothenberger MB. 2024. Integrating Population Genetics With Long‐Term Environmental Monitoring to Evaluate and Guide Vernal Pool Creation for Amphibian Conservation. Ecology and Evolution 14. DOI: 10.1002/ece3.70431.

Other Mentioned Papers/Studies:

Davis CL, Muñoz DJ, Amburgey SM, Dinsmore CR, Teitsworth EW, Miller DAW. 2023. Multistate model to estimate sex‐specific dispersal rates and distances for a wetland‐breeding amphibian population. Ecosphere 14. DOI: 10.1002/ecs2.4345.

Other Links/Mentions:

Sabillo K. 2025.Bangladesh sees first ever rewilding of captive-bred elongated tortoises. Available at https://news.mongabay.com/short-article/2025/01/bangladesh-sees-first-ever-rewilding-of-captive-bred-elongated-tortoises/ (accessed January 23, 2025).

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

Other Music – The Passion HiFi, https://www.thepassionhifi.com

Intro visuals – Paul Snelling

The Asian common toad (aka Asian black-spined toad, Asian toad, black-spectacled toad) is a remarkably successful species, living alongside humans and colonising new lands. A new study suggests there might be more than meets the eye, with the toads being more than one species. We finish with a newly described tiny species of chameleon from Madagascar. 

Become a Patreon: https://www.patreon.com/herphighlights

Merch: https://www.redbubble.com/people/herphighlights/shop

Full reference list available here: http://www.herphighlights.podbean.com

Main Paper References:

Dufresnes C, Jablonski D, Ambu J, Prasad VK, Bala Gautam K, Kamei RG, Mahony S, Hofmann S, Masroor R, Alard B, Crottini A, Edmonds D, Ohler A, Jiang J, Khatiwada JR, Gupta SK, Borzée A, Borkin LJ, Skorinov DV, Melnikov DA, Milto KD, Konstantinov EL, Künzel S, Suchan T, Arkhipov DV, Trofimets AV, Nguyen TV, Suwannapoom C, Litvinchuk SN, Poyarkov NA. 2025. Speciation and historical invasions of the Asian black-spined toad (Duttaphrynus melanostictus). Nature Communications 16. DOI: 10.1038/s41467-024-54933-4.

Species of the Bi-Week:

Rakotoarison A, Hasiniaina AF, Glaw F, Vences M. 2024. A new miniaturized species of leaf chameleon, genus Brookesia, from a littoral forest fragment in eastern Madagascar. Zootaxa 5506:533–547. DOI: 10.11646/zootaxa.5506.4.3.

Other Mentioned Papers/Studies:

Vázquez Torres S, Benard Valle M, Mackessy SP, Menzies SK, Casewell NR, Ahmadi S, Burlet NJ, Muratspahić E, Sappington I, Overath MD, Rivera-de-Torre E, Ledergerber J, Laustsen AH, Boddum K, Bera AK, Kang A, Brackenbrough E, Cardoso IA, Crittenden EP, Edge RJ, Decarreau J, Ragotte RJ, Pillai AS, Abedi M, Han HL, Gerben SR, Murray A, Skotheim R, Stuart L, Stewart L, Fryer TJA, Jenkins TP, Baker D. 2025. De novo designed proteins neutralize lethal snake venom toxins. Nature:1–7. DOI: 10.1038/s41586-024-08393-x.

Other Links/Mentions:

Callaway E. 2025. AI-designed proteins tackle century-old problem — making snake antivenoms. Nature 637:776–776. DOI: 10.1038/d41586-025-00133-z.

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

Other Music – The Passion HiFi, https://www.thepassionhifi.com

Intro visuals – Paul Snelling