Is Evolution True Essay Example | Topics and Well Written Essays - 250 words

Is Evolution True - Essay Example Individuals who have better survival characteristics will have greater chance of reproducing and pass on those characteristics to the off springs (Shubin, 2009). Comparative anatomy is the evidence that two different species of animals share similar anatomical similarities such as similar bone structures. For example, whales and hummingbirds have tetrapod skeletons that are inherited from a common ancestor. However, their bodies have changed and parts have been lost through natural selection. Another example that clearly demonstrates this is the similarities between crocodiles and alligators (Coyne, 2010). Comparative embryology is another concept supporting the theory of natural selection. All vertebrate embryos follow a similar developmental path because of their common ancestry. These embryos have a similar basic body plan due to the similar set of genes they exhibit. For example, the embryos of humans, fish, birds and rabbits look very similar during the early stages. In addition, they all have gill slits and two-chambered heart (Shubin, 2009). In conclusion, evolution by natural selection can still be exhibited in day to day life. For example, nowadays bacteria and viruses are constantly becoming resistant to antibiotics that would work effectively previously. Also, if two people get into a fight, the strongest is likely to win or whereby the strongest and fastest sperm cell usually fertilizes the ovum in