Proof of Evolution

Evolution is the theory that states that organisms evolve from one another. There have been many explanations as to how evolution occurs; however the most sensible one would be Charles Darwin’s theory of natural selection. This means that the animals fit for survival live and reproduce while the unfitting animals die out. Natural selection and evolution have a great amount of evidence. The human anatomy is very similar to that of other organisms. Similar structures can be identified in humans, monkeys, penguins, dogs, birds, and even whales. Fossils are another proof of evolution. They can show us when, where, and how certain organisms live. Molecular Biology is another supporting subject of evolution. It compares nucleic acid and protein characteristics among organisms. Three major proofs of evolution are Anatomy, Paleontology, and Molecular biology.
Anatomical similarities in organisms may show evidence of a common ancestor; however this is not always the case.   Birds, bats, and insects all have wings, but they all evolved independently of one another. Dolphins and whales also look similar, but these creatures are also unrelated. These misleading structures are known as analogous traits. Homologous traits, on the other hand, are similar structures that have been inherited by a common ancestor. These structures, however, do not necessarily have the same function. For example, humans, whales, chimpanzees, and several other vertebrates have homologous structures. These structures are more useful when looking for links in certain organisms. Some traits were once useful to pre-evolved organisms but at one point, became useless. These are called vestigial structures. Some current vestigial structures in humans include the tailbone, the appendix, the pinky toe, male nipples, and ear muscles. Homologous, analogous, and vestigial structures all explain how we evolved.
Fossils have made a huge impact on our understanding of evolution. They allow us to find when certain...