In his book The Origin of Species Darwin explained animals use their traits for the purpose of survival and mating. The Theory of Natural Selection accounts for why certain animal species produce more offspring (this is due to the offspring having the traits needed for survival”. Evidence for evolution can be seen in fossil records, gene flow, and genetic drift. An example of gene flow is when an animal from one herd mates with an animal from another herd, this results in moving genes to a new population. An example of genetic drift is an animal who comes close to extinction and the population has a lack of genetic variability. …show more content…
Scientists all over the world use taxonomy to correctly identify which animal species they are discussing. In addition to classifying animal’s taxonomy can also be used to trace evolutionary behavior. This is done by using phylogenetic relationships to build evolutionary trees. In doing so you can see how species with specific traits gave rise to new species. Taxonomy can be show how species share similar traits and trace where that trait evolved from. Fossil evidence can give information of how an animal behaves. Aspects of behavior that we can learn from fossils includes morphological structure, predation and mating. This can help scientists learn more about extinct species and evolution has allowed new species to have the same