{"fact":"Crows and ravens have rapidly diversified and spread across the globe, inhabiting a wide range of environments from deserts to arctic regions.","context":"Here, we investigate the importance of adaptive processes in global radiations, asking whether they are associated with niche expansions and parallel pulses of rapid speciation and phenotypic divergence. We address these questions in the genus Corvus (crows and ravens), a prominent group within the avian family Corvidae that has expanded across the world occupying almost all of Earth’s biomes (from hottest deserts to the arctic regions), branching out into at least 46 distinct species.","source":"Joan Garcia-Porta; Daniel Sol; Matt Pennell; Ferran Sayol; Antigoni Kaliontzopoulou; Carlos A. Botero, Niche expansion and adaptive divergence in the global radiation of crows and ravens, 10.1038/s41467-022-29707-5","index":368}