{"fact":"Crows and ravens exhibit a remarkable diversity in beak shapes, exceeding that of other closely related bird families, potentially driven by adaptation to various food sources and environments.","context":"In terms of beak shape, crows and ravens not only reproduced many of the shapes already present in their family but also evolved entirely new beak types in short time periods (e.g., Corvus crassirostris and Corvus moneduloides).","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":370}