In this episode we are talking chameleons, one of nature's most famous colour changers. But despite their famous status, very few studies have actually demonstrated that they can change colour under controlled conditions. Research led by our very own Tom Major has shown that flap-necked chameleons from Tanzania are capable of changing their colour, and brightness, to match their surroundings and escape predation.

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Main Paper References:

Major T, Hesten ACM, Stipala J, Cant MA, Stevens M, Troscianko J. 2025 Flap-necked chameleons change colour to match their background. Biology Letters 21: 20250134

Other Mentioned Papers/Studies:

Drown, R. M., Liebl, A. L., & Anderson, C. V. (2022). The functional basis for variable antipredatory behavioral strategies in the chameleon Chamaeleo calyptratus. Journal of Experimental Biology, 225(10), jeb242955.

Stuart-Fox, D., Whiting, M. J., & Moussalli, A. (2006). Camouflage and colour change: antipredator responses to bird and snake predators across multiple populations in a dwarf chameleon. Biological Journal of the Linnean Society, 88(3), 437-446.

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

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

The minds of reptiles remain largely mysterious to us, and we often wonder what kind of emotions they are capable of feeling. In this episode we dig into a new study which tries to uncover some of the mysteries of tortoise cognition, particularly whether they can experience different moods. We follow that up with a newly described species of lizard from the rocky deserts of Arabia.

Main Paper References:

Hoehfurtner T, Wilkinson A, Moszuti SA, Burman OHP. 2025. Evidence of mood states in reptiles. Animal Cognition 28. DOI: 10.1007/s10071-025-01973-y.

Species of the Bi-Week:

Šmíd J, Velenská D, Pola L, Tamar K, Busais S, Shobrak M, Almutairi M, Salim AFA, Alsubaie SD, AlGethami RHM, AlGethami AR, Alanazi ASK, Alshammari AM, Egan DM, Ramalho RO, Olson D, Smithson J, Chirio L, Burger M, Van Huyssteen R, Petford MA, Carranza S. 2025. Phylogeny and systematics of Arabian lacertids from the Mesalina guttulata species complex (Squamata, Lacertidae), with the description of a new species. BMC Zoology 10. DOI: 10.1186/s40850-025-00233-3.

Other Mentioned Papers/Studies:

Harding EJ, Paul ES, Mendl M. 2004. Cognitive bias and affective state. Nature 427:312–312. DOI: 10.1038/427312a.

Moszuti SA, Wilkinson A, Burman OHP. 2017. Response to novelty as an indicator of reptile welfare. Applied Animal Behaviour Science 193:98–103. DOI: 10.1016/j.applanim.2017.03.018.

Other Links/Mentions:

Alamshah AL, Marshall BM. 2025. Big bills, small changes: with few exceptions, Jungle crows show minor variation in bill morphology across their distribution. EcoEvoRxiv. DOI: 10.32942/X2NW74. https://ecoevorxiv.org/repository/view/9694/

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

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

A monumental new study has addressed the likely impacts of climate change on the activity of desert lizards in Africa and Australia. Hotter temperatures will likely ‘squeeze’ the activity window of some lizards, especially those active during the day. We chat about the ramifications of this paper, before turning to news of dogs being attacked by anacondas.

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

Main Paper References:

Wild KH, Huey RB, Pianka ER, Clusella-Trullas S, Gilbert AL, Miles DB, Kearney MR. 2025. Climate change and the cost-of-living squeeze in desert lizards. Science 387:303–309. DOI: 10.1126/science.adq4372.

Other Mentioned Papers/Studies:

Starace, F., & Ineich, I. (2025). Predation on dogs by Green Anacondas, Eunectes murinus (Linnaeus, 1758): two cases from French Guiana. Herpetology Notes, 18, 415-419.

Other Links/Mentions:

Rhinella alata call from James LS, O’Mara MT, Touchon JC, Ryan MJ, Bernal XE, Page RA. 2025. The ontogeny of decision-making in an eavesdropping predator. Proceedings of the Royal Society B: Biological Sciences 292:20250450. DOI: 10.1098/rspb.2025.0450.

AmphibiaWeb - Rhinella alata. Available at https://amphibiaweb.org/cgi/amphib_query?where-scientific_name=Rhinella+alata&rel-scientific_name=contains&include_synonymies=Yes (accessed June 19, 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

Bats have famously good hearing, and fringe-lipped bats in Panama have tuned theirs to listen out for frogs calling out for mates. But these bats are quite particular about which amphibians they eat. New research has revealed that bats have to learn these skills, as the youngsters have way less idea which frogs they can safely tackle. We finish off talking about a newly described skink from urban China.

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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:

James LS, O’Mara MT, Touchon JC, Ryan MJ, Bernal XE, Page RA. 2025. The ontogeny of decision-making in an eavesdropping predator. Proceedings of the Royal Society B: Biological Sciences 292:20250450. DOI: 10.1098/rspb.2025.0450.

Species of the Bi-Week:

Jia R-W, Gao Z-Y, Wu D-H, Wang G-Q, Liu G, Liu M, Jiang K, Jiang D-C, Ren J-L, Li J-T. 2025. Hidden Urban Biodiversity: A New Species of the Genus Scincella Mittleman, 1950 (Squamata: Scincidae) from Chengdu, Sichuan Province, Southwest China. Animals 15:232. DOI: 10.3390/ani15020232.

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

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

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

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.

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:

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.

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:

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