Correction for Howard et al., An evidence review of face masks against COVID-19

Cover image: Pictured are black neon tetra fish (Hyphessobrycon herbertaxelrodi) swimming in an experimental tank. Andreu Puy et al. examined the social dynamics of schools of fish by using agent-based modeling. The authors found that schooling fish exhibit selective social interactions; individuals tend to align with neighbors moving faster than themselves, while ignoring neighbors moving slower than themselves. The study provides insights into emergent leadership among schooling fish and into the mechanisms of movement coordination in natural systems. See the article by Puy et al. e2309733121. Image credit: Marc Alonso Martinez (photographer).