Veronica Selden, an undergraduate researcher who graduated in May 2022, and her advisor Dr. Jack Putz, published a study suggesting that southeastern pocket gophers are the first non-human mammalian farmers. The study has been covered by the New York Times, National Geographic, and other international news sources. Links to the study and to some of the media coverage are below.
Link to the full article: https://www.sciencedirect.com/science/article/pii/S0960982222009150?via%3Dihub
Media coverage:
https://news.ufl.edu/2022/07/gophers-first-known-mammal-farmer/
https://www.nytimes.com/2022/07/11/science/gophers-farmers-roots.html
https://www.nationalgeographic.com/animals/article/pocket-gophers-farm-roots-study-suggests