{"fact":"Crow feather color isn't just about looks – it plays a big role in who they choose as a mate!  Crows tend to pick partners with similar plumage, a phenomenon known as assortative mating.","context":"In this system, there is only limited evidence for post-zygotic, natural selection against hybrids (Saino, 1990; Saino and Bolzern, 1992; Saino and Villa, 1992), but multiple support for plumage-based assortative mating (Meise, 1928; Randler, 2007a) and social marginalization of minority phenotypes (Saino and Scatizzi, 1991; Londei, 2013).","source":"Dirk Metzler; Ulrich Knief; Joshua V. Peñalba; Jochen B. W. Wolf, Assortative mate choice and epistatic mating-trait architecture induce complex movement of the crow hybrid zone, 10.1101/2020.03.10.985333","index":562}