The latitudinal speciation gradient in freshwater fishes: Higher speciation across assemblages at higher latitudes in the northern hemisphere. - Herrera-Pérez, Juliana; Carvajal-Quintero, Juan; Arango, Axel; Valencia-Rodríguez, Daniel; García-Andrade, Ana Berenice; Tedesco, Pablo; Villalobos, Fabricio (PLoS ONE, 2026)