Herpetological Highlights

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. D

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. DO

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 (Lau

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.Banglad

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).

Our understanding of the social lives of snakes is evolving at breakneck speed. This week we discuss a new study which has revealed that ball pythons have social behaviour. We also talk about sociality in rattlesnakes, before moving on to some news from the world of milk snake speciation - there may be fewer species than previously thought. 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: Clark RW, Brown WS, Stechert R, Greene HW. 2012. Cryptic sociality in rattlesnakes (Crotalus horridus) detected by kinship analysis. Biology Letters 8:523–525. DOI: 10.1098/rsbl.2011.1217. Skinner M, Kumpan T, Miller N. 2024. Intense sociability in a “non-social” snake (Python regius). Behavioral Ecology and Sociobiology 78:113. DOI: 10.1007/s00265-024-03535-7. Other Mentioned Papers/Studies: Kornai D, Jiao X, Ji J, Flouri T, Yang Z. 2024. Hierarchical Heuristic

A wildly ambitious new study manages to test how the personalities of sleepy skinks influence their success at finding food in the wild. Then we hit upon a beautiful new frog species from China. 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: Spiegel O, Michelangeli M, Sinn DL, Payne E, Klein JV, Kirkpatrick J, Harbusch M, Sih A. 2024. Resource manipulation reveals interactive phenotype‐dependent foraging in free‐ranging lizards. Journal of Animal Ecology 93:1108–1122. DOI: 10.1111/1365-2656.14128. Species of the Bi-Week: Tang S, Sun T, Liu S, Luo S, Yu G, Du L. 2023. A new species of cascade frog (Anura: Ranidae: Amolops) from central Yunnan, China. Zoological Letters 9:15. DOI: 10.1186/s40851-023-00214-9. Other Mentioned Papers/Studies: Marshall BM, Alamshah AL, Cardoso P, Cassey P, Chekunov S, Eskew EA, Fukushima CS, García-Díaz P, Gore ML, L

Blindsnakes have taken over the continent of Australia at rapid speed. We chat about their different body types and finish with some listener-submitted wild observations of unusual reptile behaviour. 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: Tiatragul S, Skeels A, Keogh JS. 2024. Morphological evolution and niche conservatism across a continental radiation of Australian blindsnakes. Evolution 78:1854–1868. DOI: 10.1093/evolut/qpae132. Other Links/Mentions: Robles-Gil A. 2024.After the Death of Cassius, the World’s Largest Captive Crocodile, Scientists Are Trying to Solve the Mystery of His Age. Available at https://www.smithsonianmag.com/smart-news/after-the-death-of-cassius-the-worlds-largest-captive-crocodile-scientists-are-trying-to-solve-the-mystery-of-his-age-180985422/ (accessed December 5, 2024). Editing and Music: Intro/outro – Tre

A clever new experiment has shown that bearded dragons can learn skills by copying other dragons. Then we have a brand new orange and black newt species. 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: Kis A, Huber L, Wilkinson A. 2015. Social learning by imitation in a reptile (Pogona vitticeps). Animal Cognition 18:325–331. DOI: 10.1007/s10071-014-0803-7. Species of the Bi-Week: Pomchote P, Peerachidacho P, Khonsue W, Sapewisut P, Hernandez A, Phalaraksh C, Siriput P, Nishikawa K. 2024. The seventh species of the newt genus Tylototriton in Thailand: a new species (Urodela, Salamandridae) from Tak Province, northwestern Thailand. ZooKeys 1215:185–208. DOI: 10.3897/zookeys.1215.116624. Other Mentioned Papers/Studies: Folt B, Marshall M, Emanuel JA, Dziadzio M, Cooke J, Mena L, Hinderliter M, Hoffmann S, Rankin N, Tupy J, McGowan C. 2022. Using p

Despite their boring name, ground snakes exhibit a variety of gnarly behaviours to help them take down invertebrate prey like spiders, scorpions and centipedes.  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: Gripshover ND, Meik JM, Nicholson DJ, Cox CL. 2024. Feeding behavior varies based upon prey defenses in the ground snake (Squamata: Serpentes: Sonora episcopa). Journal of Zoology 324:71–82. DOI: 10.1111/jzo.13198. Other Links/Mentions: Rana iberica call by Rafael Márquez from https://amphibiaweb.org/cgi/amphib_query?where-scientific_name=Rana+iberica&rel-scientific_name=contains&include_synonymies=Yes Burgess J. 2024. World’s largest crocodile in captivity dies. Available at https://www.bbc.com/news/articles/clyvzyyd6l7o (accessed November 6, 2024). Editing and Music: Intro/outro – Treehouse by Ed Nelson Species Bi-week theme – Mi

Worm lizards are strange legless animals that live underground. Turns out they communicate by smell and are able to pass on surprisingly complex messages. There's also a brand new species of these subterranean lizards. 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: Martín J, Navarro-Castilla Á, De La Concha A, Cuervo JJ, Barja I, López P. 2024. Heat-altered scent marks of males of a fossorial reptile still allow recognition by females but lose information on male quality. Behavioral Ecology and Sociobiology 78:77. DOI: 10.1007/s00265-024-03496-x. Species of the Bi-Week: Ribeiro S, Santos Jr AP, Martins IG, Oliveira ECS, Graboski R, Barbosa Da Silveira T, Benício MHM, Vaz-Silva W. 2024. A new four-pored Amphisbaena Linnaeus, 1758 (Amphisbaenia, Amphisbaenidae) from the north of Espinhaço Mountain Range, Brazil. ZooKeys 1213:1–27. DOI: 10.3897/zoo

In this Patreon-selected double bill we investigate the tricky task of sexing blue-tongued skinks and the strange underworld of olms. 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: McKenzie A, Li T, Doneley B. 2022. A comparison of two techniques to identify the sex of the eastern blue‐tongue skink (Tiliqua scincoides scincoides). Australian Veterinary Journal 100:407–413. DOI: 10.1111/avj.13170. Recknagel H, Zakšek V, Delić T, Gorički Š, Trontelj P. 2024. Multiple transitions between realms shape relict lineages of Proteus cave salamanders. Molecular Ecology 33:e16868. DOI: 10.1111/mec.16868. 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 chat about vipers hissing before hitting on some massive news with multiple new species of king cobra being described. 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: Van Zele N, Nicot T, Lengagne T, Ksas R, Lourdais O. 2024. Physiological costs of warning: Defensive hissing increases metabolic rate and evaporative water loss in a venomous snake. Physiology & Behavior 287:114708. DOI: 10.1016/j.physbeh.2024.114708. Species of the Bi-Week: Das I, Gowri Shankar P, Swamy P, Williams RC, Lalremsanga HT, Prashanth P, Sahoo G, Vijayakumar SP, Höglund J, Shanker K, Dutta SK, Ganesh SR, Wüster W. 2024. Taxonomic revision of the king cobra Ophiophagus hannah (Cantor, 1836) species complex (Reptilia: Serpentes: Elapidae), with the description of two new species. European Journal of Taxonomy 961. DOI: 10.5852/ejt.2024.961.2681. Other Mentioned Paper

Crocodiles and apes have a long history together, and they might have been dining on our young... 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: Thévenet J, Papet L, Coureaud G, Boyer N, Levréro F, Grimault N, Mathevon N. 2023. Crocodile perception of distress in hominid baby cries. Proceedings of the Royal Society B: Biological Sciences 290:20230201. DOI: 10.1098/rspb.2023.0201. Other Mentioned Papers/Studies: Seilern-Macpherson K, Lawson B, Macadam CR, West P, Reed N, Gibson L, Świątek P, Gajda Ł, Cunningham AA, Heaver J, Julian AM. 2024. Predation of anurans in southern England by Batracobdella algira, a leech previously unknown in the UK. The Herpetological Journal 34:221–227. DOI: 10.33256/34.4.221227. King RB, Ray JM, Stanford KM. 2006. Gorging on gobies: beneficial effects of alien prey on a threatened vertebrate. Canadian Journal of Zoo

Turtles have personalities and these can be influenced by the environments they live in, with urban environments seemingly changing the way turtle populations behave. Plus we talk about a chunky new toad species. 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: Carlson BE, Carter SE, Hulbert AC, Hyslop NL, Free Kashon EA, Kimble SJA, Lisk J, McElroy C, Mook JL, Refsnider JM, Roe JH, Tetzlaff SJ, Windmiller B. 2024. Intrapopulation variation in boldness differs while average boldness is similar across populations of a widespread turtle. Behavioral Ecology and Sociobiology 78:64. DOI: 10.1007/s00265-024-03480-5. Species of the Bi-Week: Caicedo-Martínez LS, Henao-Osorio JJ, Arias-Monsalve HF, Rojas-Morales JA, Ossa-López PA, Rivera-Páez FA, Ramírez-Chaves HE. 2024. A new species of terrestrial toad of the Rhinella festae group (Anura, Bufonidae) fro

A bunch of new research up for discussion with frogs building nests, two-tailed geckos jogging about, and a leucistic snake that's venomous and poisonous. 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: Angiolani‐Larrea FN, Jindiachi L, Tinajero‐Romero JG, Valencia‐Aguilar A, Garrido‐Priego M, Culebras J, Ringler E. 2023. Egg burying behaviour in Pristimantis highlights the link between direct development and specialised parental care. Ecology and Evolution 13:e10808. DOI: 10.1002/ece3.10808. Liang T, Ran J, Liang Q, Leng L, Du J, Wang J, Shi L. 2024. Report of abnormal tail regeneration of Eremias yarkandensis (Sauria: Lacertidae) and its locomotor performance. Ecology and Evolution 14:e11074. DOI: 10.1002/ece3.11074. Park S, Cheon S, Park H, Kim N, Rahman MM, Sung H. 2024. The first record of leucism in the Rhabdophis tigrinus (Boie, 1826) (Sq

Are lizards from fire-prone areas more savvy to smoke? New research suggests they are, plus we chat about a newly discovered green frog whose beautiful call (probably) resembles a flute. 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: Álvarez-Ruiz L, Belliure J, Pausas JG. 2021. Fire-driven behavioral response to smoke in a Mediterranean lizard. Behavioral Ecology 32:662–667. DOI: 10.1093/beheco/arab010. Species of the Bi-Week: Marinho P, Santos MTT, Faivovich J, Lyra ML, Giaretta AA, Haddad CFB, Carvalho TR. 2024. A New Species of the Aplastodiscus albosignatus Group (Hylinae: Cophomantini) from the Northern Mantiqueira Mountain Range. Herpetologica 80. DOI: 10.1655/Herpetologica-D-23-00008. Editing and Music: Intro/outro – Treehouse by Ed Nelson Species Bi-week theme – Michael Timothy Other Music – The Passion HiFi, https://www.thepassionhifi.c

In Australia rotten meat is a valuable commodity that monitor lizards compete for against dingoes and red foxes. Plus new work from a team including ZSL has discovered a key ingredient to some lizard and crocodilian teeth that explains how they are so tough. 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: Cairncross RJ, Spencer EE, Meisuria N, Crowther MS, Newsome TM. 2024. Carrion use by a reptile is influenced by season, habitat and competition with an apex mammalian scavenger. Ecology and Evolution 14:e70211. DOI: 10.1002/ece3.70211. Other Mentioned Papers/Studies: LeBlanc ARH, Morrell AP, Sirovica S, Al-Jawad M, Labonte D, D’Amore DC, Clemente C, Wang S, Giuliani F, McGilvery CM, Pittman M, Kaye TG, Stevenson C, Capon J, Tapley B, Spiro S, Addison O. 2024. Iron-coated Komodo dragon teeth and the complex dental enamel of carnivorous reptiles.

We talk about tourists intimidating lizards, pythons eating each other, and some fun skink action including a brand new dragon-like skink. 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: Golawska S, Charalambidou I, Surmacki A, Golawski A. 2024. Tourism influences escape behavior of lizards in relationship with human clothing color. Scientific Reports 14:16869. DOI: 10.1038/s41598-024-68092-5. Species of the Bi-Week: Wang K, Li L, Mu H-N, Xu S-J, Che J. 2024. A New Species of the Genus Tropidophorus Duméril, Bibron, 1839 (Reptilia: Squamata: Scincidae) from China-Vietnam Border Region in Southeastern Yunnan Province, China. Zootaxa 5486:129–141. DOI: 10.11646/zootaxa.5486.1.6. Other Mentioned Papers/Studies: Mahamud I, Asif AA, Rahman MM, Sarker S, Shome AR. 2024. Python eats python: A Burmese Python (Python bivittatus) preying on a Reticulated

At the World Congress of Herpetology in Borneo we had the pleasure of meeting Mark and Hiral from the SquaMates Podcast, and took the opportunity to record an episode together. You can watch the video on our YouTube channel: https://youtu.be/ptXlOtEzivs  Check out Mark D. Scherz, Ethan Kocak, Gabriel Ugueto, and Hiral Naik in the SquaMates Podcast: http://squamatespod.com/  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 Editing and Music: Intro/outro – Treehouse by Ed Nelson Species Bi-week theme – Michael Timothy Other Music – The Passion HiFi, https://www.thepassionhifi.com