The process of speciation is completed with the cessation of genetic exchange. Peter R. Grant Read Quote
The theory of founder effects does not explain how novel features like plumage traits arise. Peter R. Grant Read Quote
Almost nothing is known from hybridization studies about the inheritance of courtship behavior of females, or of their responsiveness to particular male signals. Peter R. Grant Read Quote
Genes that underlie the capacity to receive, use and transmit information are the evolving properties. Peter R. Grant Read Quote
The divergence of songs in the new population away from those in the progenitor population would only be prevented if these processes were balanced by repeated immigration and subsequent breeding: song flow. Peter R. Grant Read Quote
Exchange of breeding individuals between two populations tends to homogenize their gene pools. Peter R. Grant Read Quote
