Peter R. Grant

The process of speciation is completed with the cessation of genetic exchange. ↗

— Peter R. Grant

#completed #exchange #genetic #process

The theory of founder effects does not explain how novel features like plumage traits arise. ↗

— Peter R. Grant

#does #effects #explain #features #founder

Thus mating of females was strictly along the lines of paternal song. ↗

— Peter R. Grant

#females #lines #mating #paternal #song

Thus the genetic basis to the origin of bird species is to be sought in the inheritance of adult traits that are subject to natural and sexual selection. ↗

— Peter R. Grant

#basis #bird #genetic #inheritance #natural

We observe closely related species in sympatry and infer how they evolved from a common ancestor. ↗

— Peter R. Grant

#common #evolved #how #infer #observe