Peter R. Grant Quotes

Peter R. Grant — American Scientist

Peter Raymond Grant and Barbara Rosemary Grant, a married couple, are both British evolutionary biologists at Princeton University; each holds the position of Emeritus Professor. They are noted for their work concerning Darwin's finches on the Galápagos Island named Daphne Major. The Grants have spent six months of the year each year since 1973 capturing, tagging, and taking blood samples of the finches on the island... (wikipedia)

Almost nothing is known from hybridization studies about the inheritance of courtship behavior of females, or of their responsiveness to particular male signals.

Plumage features constitute a major component of courtship signals.

Males transmit signals in courtship through behavioral displays.

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

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 Quotes

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