Adaptive radiation is shown through the evolution of multiple species from a single ancestor to fill ecological niches, exemplified by Darwin's finches on the Galápagos Islands.
Adaptive radiation is the evolutionary process by which a single species diversifies into multiple new species to occupy different ecological niches. One example of this is seen in Darwin's finches on the Galápagos Islands, where a single bird species evolved into various finch species with adaptations for different food sources on different islands due to geographical isolation. This phenomenon is also known as ecological speciation.
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