What particularly amazed Darwin about the creatures he observed on the Galapagos Islands?

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During his journey Darwin went to Galapagos Islands. There he observed an amazing diversity of creatures. Of particular interest, small black birds Later Darwin’s Finches amazed him. He realised that there were many varieties of finches on the same island . All the varieties, he conjectured, evolved on the island itself. From the original seed-eating features, many other forms with altered beaks arose, enabling them to become insectivorous and vegetarian finches . This process of evolution of different species in a