Darwin concludes that the idea of evolution occurs. In other words, organisms change over time, and life on Earth has changed as its generations constantly changed from common ancestors in the past. It explains why evolution occurs and the outcome of it.
It first describes human evolution, and goes into detail about how they were first and how they are now. Then it talks about Paleoanthropology, the study of human evolution. Lastly it talks about the process of evolution, and provides a short video.
This image shows how evolution changed over the years, and what some of the changes that were made over generations.It shows how many species changed other time or how new species got added.