Darwin is famous for his discovery in the Galapagos islands, studying finches. The finches were all from derived from the same original finch but over time they were separated into “groups” by the difference of their beaks due to the finches living on different islands they were open to different resources to survive from. The one thing that Darwin didn’t understand was how exactly the finches did change how their bodies know how to create and make their beaks different. That is what we know now. With the study of DNA we understand that when an animal is changing by evolution their actual DNA changes too. The DNA strand develops different instructions over time to better serve survival. BY this new information we now know that it is possible to change animals unnaturally by changing their DNA. It also helps us understand that we all evolved from certain animals, for example us as humans are believed to have evolved from fish.