Evidence Of Evolution

The first and quite possibly the best evidence for evolution is Homology. Homology is when species share similarities that are signs of common ancestry such as homologous structures. Homologous structures are ones that derive from a common ancestral structure (“Evidence of Evolution…”). These can prove to be very solid reasoning when arguing for evolution and against creationism. They have led scientists to believe that current animals have evolved from one common ancestor. An easy way to explain homologous structures is that they are common bone structures found in completely different animals. An example of this can be seen in the limbs of mammals. You can see countless examples of homologous structures when just looking at the sets of bones throughout an animal’s body. …show more content…
This can be further seen when specifically looking at certain groups of animals. One set of these animals that provides a great example are frogs, birds, rabbits, and lizards. “Frogs, birds, rabbits and lizards all have different forelimbs, reflecting their different lifestyles” (“Homologies”). “But those different forelimbs all share the same set of bones - the humerus, the radius, and the ulna” (“Homologies”). “These are the same bones seen in fossils of the extinct transitional animal, the Eusthenopteron” (“Homologies”). This shows common ancestry between these common day mammals and prehistoric, now extinct animals, like the