Scientists offer two main approaches to studying and understanding human evolution: the top-down approach and the bottom-up approach. The top-down approach relies on the analysis of living apes, such as chimpanzees, while the bottom-up approach focuses on fossils of apes, which are mostly extinct.When we consider the totality of the evidence, including all living and fossil apes and hominids, it is clear that the story of human evolution based on the few species of apes currently alive misses the whole picture of evolution. On the other hand,The story would be more complete if more of these extinct species were part of the evolutionary equation for great apes and humans. Fossilized great apes are essential for reconstructing the starting point from which humans and chimpanzees evolved.All humans are from the ape group, and as such, humans are related to whales, trees, and bacteria. , the same genetic material that makes up other animals.