Biogeography, island evolution, and drought effects on species in the Galápagos Islands are explained.
Biogeography is the study of the geographical distribution of living organisms and the factors that determine their distribution patterns.
An example of island biogeography providing evidence of evolution is the adaptive radiation of finches on the Galápagos Islands studied by Charles Darwin, which led to the development of his theory of natural selection.
The drought on the Galápagos Islands observed by the Grants led to changes in the beak size of finches due to variations in food availability, showcasing adaptation through natural selection.
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