1 The University of Colorado, Department of Ecology and Evolutionary Biology, Boulder, CO 80309, USA. Electronic address: elizabeth.scordato@colorado.edu.
2 The University of Colorado, Department of Ecology and Evolutionary Biology, Boulder, CO 80309, USA. Electronic address: rebecca.safran@colorado.edu.
Biologists have long sought the genes that contribute to phenotypic and population divergence. Two new studies identify genomic regions involved in plumage coloration and migratory orientation.