Evolutionary biologist who, with Peter R. Grant, studied Darwin's finches over decades. Repeated field measurements connected selection and hybridization with changing beak and body traits, revealing events that a short observation period could miss.[ref]
Unpredictable evolution in a 30-year study of Darwin's finches by Peter R. Grant and B. Rosemary Grant. Author list and described study
Portrait of B. Rosemary Grant
. David Craig. CC BY-SA 2.0, via Wikimedia Commons. Source.
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