The Finches From The Galapagos Island

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Change is the key factor in a species survival, whether that change, is being minimal or extremely dramatic, and without change a species have condemned itself to extinction. Animals have learned to adapt to their surroundings in order to survive, and with these adaptation people can witness new breeds added to the spectrum and see them flourish. Breeds can be defined as a stock of animals or plants within a species having a distinctive appearance and typically having been developed by deliberate selection. For example the finches from the Galapagos Island’s they are all finches, but they all differed in their appearance, some had smaller others had larger beaks. Charles Darwin studied these Finches and came to discover that the Finches differed in appearance because they had adapted to their environment. The Galápagos finches provide an excellent example of this process. Among the birds that ended up in arid environments, the ones with beaks better suited for eating cactus obtained supplementary food. As a result, they were in healthier condition to mate. Similarly, those with beak shapes that were well suited in getting nectar from flowers or eating thicker shielded seeds in other environments were at an advantage there. In a very real sense, nature selected the best adapted varieties to survive and to reproduce. With his findings throughout the years Darwin formulated his theory of evolution by natural selection, and published his first book entitled, "On the Origin

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