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Peter R. Grant quotes
Plumage features constitute a major component of courtship signals.
Peter R. Grant
Males transmit signals in courtship through behavioral displays.
Peter R. Grant
The process of speciation is completed with the cessation of genetic exchange.
Peter R. Grant
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