By: B Rosemary Grant(Author), Peter R Grant(Author)
380 pages, 8 plates with colour photos; 75 b/w photos, 58 b/w illustrations, tables
This major study addresses a key question in evolutionary biology: why do some populations vary so much in morphological, ecological, behavioural, and physiological traits? Through the study of variation and its causes in a single species, the large cactus finch on Isla Genovesa in the Galápagos, the Grants provide evidence that species are capable of evolutionary change within observable periods of time.
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