Mark Margres and Samuel Hirst studied rattlesnakes across 11 uninhabited islands in the Gulf of California.
Notes on verification
Confirmed by the peer-reviewed journal article (Evolution, 2025) itself along with university press release and multiple independent science news outlets.
Sources
- What rattlesnake venom can teach us about evolution: New USF study | ScienceDaily (sciencedaily.com)
- https://www.usf.edu/news/2025/what-rattlesnake-venom-can-teach-us-about-evolution.aspx (usf.edu)
- https://academic.oup.com/evolut/article/79/8/1419/8118642 (academic.oup.com)
- https://www.earth.com/news/rattlesnakes-develop-simpler-venom-when-living-on-bigger-islands/ (earth.com)
- https://www.popsci.com/environment/rattlesnake-venom-evolution/ (popsci.com)