Nancy Hopkins and Aviv Regev were elected to the 2021 class of American Association for Cancer Research Fellows. Hopkins was honored for helping to establish zebrafish as an essential disease model—which has also earned her the International Zebrafish Conference's 2021 George Streisinger Award—as well as her research involving murine RNA tumor viruses. Regev was honored for her work developing computational approaches to understanding molecular circuits and developing technologies for high throughput, single-cell screening.