Herpetological Highlights

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.

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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 Species Delimitation Under the Multispecies Coalescent Model with Migration. Systematic Biology 73:1015–1037. DOI: 10.1093/sysbio/syae050.

Other Links/Mentions:

Salamander call and video by Heidi Rockney and Gary Nafis from: https://amphibiaweb.org/cgi/amphib_query?where-genus=Dicamptodon&where-species=ensatus 

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 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.

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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, Lockwood JL, Rhyne AL, Sinclair JS, Thomas Strine C, Stringham OC, Tlusty MF, Valdez JW, Watters F, Hughes AC. 2025. The magnitude of legal wildlife trade and implications for species survival. Proceedings of the National Academy of Sciences 122. DOI: 10.1073/pnas.2410774121.

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

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.

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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 – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

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

Intro visuals – Paul Snelling

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.

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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 predictions from multiple anthropogenic threats to estimate future population persistence of an imperiled species. Global Ecology and Conservation 36:e02143. DOI: 10.1016/j.gecco.2022.e02143.

Loope KJ, Akçakaya HR, Shoemaker KT. 2024. Inflated predictions from a flawed model influenced the decision to deny federal protection for the gopher tortoise. Global Ecology and Conservation 54:e03089. DOI: 10.1016/j.gecco.2024.e03089.

Folt B, Marshall M, Emanuel JA, Dziadzio M, Cooke J, Mena L, Hinderliter M, Hoffmann S, Rankin N, Tupy J, McGowan C. 2024. Strengths and opportunities in gopher tortoise population modeling: Reply to Loope et al. Global Ecology and Conservation 54:e03093. DOI: 10.1016/j.gecco.2024.e03093.

Other Links/Mentions:

Learn JR. 2024.Research challenges gopher tortoise listing decision. Available at https://wildlife.org/research-challenges-gopher-tortoise-listing-decision/ (accessed December 5, 2024).

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

Despite their boring name, ground snakes exhibit a variety of gnarly behaviours to help them take down invertebrate prey like spiders, scorpions and centipedes. 

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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 – Michael Timothy

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

Intro visuals – Paul Snelling

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.

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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/zookeys.1213.122265.

Other Mentioned Papers/Studies:

Martín, J., Rodríguez-Ruiz, G., Navarro-Castilla, Á., Barja, I., & López, P. (2024). Blind date: female fossorial amphisbaenians prefer scent marks of large and healthy males. Integrative Zoology.

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

In this Patreon-selected double bill we investigate the tricky task of sexing blue-tongued skinks and the strange underworld of olms.

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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.

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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 Papers/Studies:

Shankar PG, Swamy P, Williams RC, Ganesh SR, Moss M, Höglund J, Das I, Sahoo G, Vijayakumar SP, Shanker K, Wüster W, Dutta SK. 2021. King or royal family? Testing for species boundaries in the King Cobra, Ophiophagus hannah (Cantor, 1836), using morphology and multilocus DNA analyses. Molecular Phylogenetics and Evolution:107300. DOI: 10.1016/j.ympev.2021.107300.

Other Links/Mentions:

Viper hissing sound from Vipera Ammodytes: https://www.youtube.com/watch?v=6YgJRa9675Y&t=33s

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

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 Zoology 84:108–115. DOI: 10.1139/z05-182.

Massenet M, Anikin A, Pisanski K, Reynaud K, Mathevon N,  Reby D. 2022. Nonlinear vocal phenomena affect human perceptions of distress, size and dominance in puppy whines. Proceedings of the Royal Society B, 289(1973), 20220429. DOI: 10.1098/rspb.2022.0429

Other Links/Mentions:

Alligator sounds from AGKrokodile: https://www.youtube.com/watch?v=XkW7-KpOQLA

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) from the highlands of the Central Cordillera of the Andes of Colombia. ZooKeys 1196:149–175. DOI: 10.3897/zookeys.1196.114861.

Other Mentioned Papers/Studies:

Marr MM, Hopkins K, Tapley B, Borzée A, Liang Z, Cunningham AA, Yan F, Wang J, Turvey ST. 2024. What’s in a name? Using species delimitation to inform conservation practice for Chinese giant salamanders (Andrias spp.). Evolutionary Journal of the Linnean Society 3:kzae007. DOI: 10.1093/evolinnean/kzae007.

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