how did the discovery of DNA prove that Darwin’s theory of evolution was correct and how does it change the way we view evolution today and into the future?

Charles Darwin was a biologist who visited the Galapagos islands in 1835 during his travels he encountered many fascinating organisms and during expeditions he collected the bodies of multiple birds. While he was going home he discovered that all the birds(finch’s) were the same species even though they didn’t look alike.

Darwin’s first study was with dogs breeders and focused on the idea of specific traits being passed down based on human interactions. he believed that the small adaptations that happened in the finch from the different Galapagos islands was the cause of adaptation. He believed that those small differences allowed for the fit to get fitter and for the unfit to slowly die off which overtime lead to much bigger differences. He believed the birds had these different characteristics because they adapted to their environment depending on which of the islands they resided, they used their beaks as tools and the long beaks were used to go deep into flowers and short beaks were for breaking hard nuts. This proves his theory of evolution by natural selection and instead of human interactions passing down traits like with dogs it was natures interactions that affected the species and allowed them to evolve over time.

Natural selection is another place to explore in the medical field it gives us a chance to discover the cause of diseases and the chance of finding a cure. In the movie What Darwin never knew that we watched in class, they spoke about finding a cure for microscelepathy. Microcelepathy is a disease where the human brain is the same size as a chimps and this is because of 1 of the 21 different mutations. They have yet to find a cure but using Darwin’s theory has helped them a lot, natural selection has opened many doors for scientists and our future and is evolving all thanks to Darwin’s early discoveries. Now with the discovery of DNA we could test and prove Darwin’s theory easily.