This 2017 video says about itself:
Evolution by Natural Selection – Darwin’s Finches | Evolution | Biology
In December 1831 a naturalist called Charles Darwin boarded the HMS Beagle, bound on a surveying voyage of South America. Whilst the ship and crew carried out coastline surveys, Darwin was free to explore the islands en route. In 1835 the Beagle arrived at the Galapagos islands, near Ecuador. What Darwin found there surprised him greatly. As well as giant tortoises and marine iguanas, Darwin collected and preserved a variety of different songbirds called finches. Upon returning to the UK he examined them together with ornithologist John Gould, and made some fascinating discoveries.
From the University of Bristol in England:
How the development of skulls and beaks made Darwin’s finches one of the most diverse species
February 3, 2020
Darwin’s finches are among the most celebrated examples of adaptive radiation…
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