Anoles aren't known for being tolerant, but when it comes to lead they seem to be able to tolerate monumental amounts that would spell disaster for a puny human. We delve into how they survive being so lead-laden, as well as where that lead has come from, and what this might mean for lizard-kind. Then we hit upon a newly described species of snake which is even more slender than most.

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Main Paper References:

Blanchette A, Su K-J, Frick AJ, Karubian J, Gunderson AR. 2025. Unprecedented lead tolerance in an urban lizard. Environmental Research 285:122531. DOI: 10.1016/j.envres.2025.122531.

Species of the Bi-Week:

Chen H-L, Zhang L, Liu G-X, Liu Z-F, Kwok C-T, Vogel G, Wang J-Y, Wu Z-J, Chen Z-N. 2026. A new genus and species of Dipsadidae (Reptilia: Squamata: Serpentes) from Guangdong and Hunan Provinces in Southern China. Zootaxa 5849:213–226. DOI: 10.11646/zootaxa.5849.2.5.

Other Mentioned Papers/Studies:

Chen M, Gazze L, DiTraglia FJ, Das R, Nriagu J, Erel Y, Boyle EA, Taylor CM, Weiss D. 2025. Environmental lead risk in the 21st century. Communications Earth & Environment 6:776. DOI: 10.1038/s43247-025-02735-x.

Editing and Music:

Intro/outro – Treehouse by Ed Nelson

Species Bi-week theme – Michael Timothy

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