A duckweed weevil ( Tanysphyrus brevipennis ) walking on a frond of Spirodela polyrhiza , with feeding scars left by the weevil clearly visible on the frond surface. Photographed in the laboratory at the Prefectural University of Hiroshima, Japan. Photograph by Minako Isoda. The duckweed weevil feeds selectively among coexisting duckweed species. Our study reveals a consistent preference hierarchy in this selective feeding and suggests that frond anthocyanin acts as a chemical deterrent that shapes this herbivory. Photo is courtesy of the authors of the article: Isoda, M., K. Takahashi, H. Yagi, T. Muranaka, T. Oyama, and M. M. Kanaoka. 2026. Selective Feeding of the Duckweed Weevil on Three Common Species of Duckweed in Japan. Plant Species Biology 41, no. 4: e70065. https://doi.org/10.1111/1442‐1984.70065 . image