{"fact":"Past studies underestimated how far north hybrid crows are distributed, as the current genetic evidence places the center of their hybrid zone in southwestern British Columbia.","context":"Notably in our study, however, both mtDNA and nuDNA analyses placed the center of the hybrid zone in southwestern British Columbia, farther north than previous hypotheses based on traditional phenotypic characters.","source":"David L. Slager; Kevin L. Epperly; Renee R. Ha; Sievert Rohwer; Chris Wood; Caroline Van Hemert; John Klicka, Cryptic and extensive hybridization between ancient lineages of American crows, 10.1111/mec.15377","index":662}