Defect patterns on the curved surface of fish retinae suggest a mechanism of cone mosaic formation. - Hayden Nunley; Mikiko Nagashima; Kamirah Martin; Alcides Lorenzo Gonzalez; Sachihiro C. Suzuki; Declan A. Norton; Rachel O. L. Wong; Pamela A. Raymond; David K. Lubensky (PLoS Comput. Biol., 2020)