Evolutionary theory is one of the greatest and most impacting scientific theories to date as well as being the most controversial, despite its wide acceptance within the scientific community. For every scientist that supports it there is a person with strong fundamentalist or creationist to counter it. The main reason of alarm is the claim of human descent and its direct contradiction with the Book of Genesis for Christians and Jews. Even though there is a large number of people that don’t believe it, there has been much evidence gathered that does support it many times over in the generations since Darwin's publication of The Origin of Species. The article written by David Quammen is a great attempt at explaining and putting together some