Keith Henson, a writer on evolutionary psychology, once said that “Evolution works slowly. Our psychological characteristics today are those that promoted reproductive success in the ancestral environment.” Evolution was first introduced by a naturalist named Charles Darwin. Darwin had written an autobiography, at the age of 50, On the Origin of Species (1859) in which he explained how species evolve over time through natural selection; this theory became known as Darwinism. “Verlyn Klinkenborg, who writes editorials and cartoons on science and nature for the New York Times” (Muller 706) questions Darwin's theory in one of his essays entitled Darwin at 200: The Ongoing Force of His Unconventional Idea. Both articles talk about the theory of Darwinism, but the authors use different writing techniques and were written in different time periods. Darwin himself writes to inform us what the theory is, while Klinkenborg goes on to explain why Darwinism is just a theory. Today, evolution is still a highly controversial topic among many. It shows up in different topics that are discussed every day, such as politics, religion, and education. Evolution in general is a difficult concept to understand. There are multiple factors that influence the outcome of a species, for example: genetics, nurture, nature and environment all play an important role. It was once said that species do not survive because they are the strongest or most intelligent, but because they are the most responsive to change. Charles Darwin was born in 1809 in England, studied medicine in Edinburgh and ministry in Cambridge. He later became interested in natural history. From 1831 to 1836 he traveled around the world on a cruise; this triggered an int......middle of paper......alm, in the sense that he wasn't trying to force you to think one way or the other, unlike Klinkenborg, where he had used a very more assertive and aggressive tone in his writings, although both articles made it clear that it was up to the reader to decide whether the idea was conventional or not. In conclusion, both articles explain what Darwinism means to them. It is the personal opinion of the authors and it is up to the reader to decide what to believe. A person's politics, religious views, and education can have an influence on what a person decides to believe. The topic of evolution and Darwinism has always been and will always be very controversial. In the end, although both Charles Darwin and Verlyn Klinkenborg have one thing in common, which is that Darwinism is only a theory at the moment, and could always be a theory..