Answer :
Prior to the adaptive radiation of finches, there were no unoccupied habitats in the Galápagos Islands.
Beak shape is not an important key innovation.
Charles Darwin's Finches and the theory of evolution
The Galapagos Islands are home to 13 of the world's only Darwin's finches, little land birds that bear his name. The fourteenth finch is the Cocos finch, which lives on the island of Cocos in Costa Rica. They aren't real finches, but rather members of the tanager family.
Natural selection, according to Charles Darwin, is a phenomenon that contributes to evolution. According to the natural selection principle, organisms create more offspring than are capable of surviving in their surroundings.
His journey to the Galapagos Islands was crucial in the formation of his theory of natural selection because he discovered a number of finch species that varied from island to island. The Galapagos Islands are an archipelago of 13 noteworthy islands.
In addition to giant tortoises, iguanas, fur seals, sea lions, sharks, and rays, they are home to 26 species of native birds, 14 of which are Darwin's finches. These finches are recognized as the vertebrates in the entire animal world that have evolved the fastest because of how quickly their look and behavior changed to adapt to this confined and quickly changing environment.
Learn more about Darwin's finches on the Galapagos Islands here:
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