Social evolution is the study of applying evolutionary logic to explain the change of mankind and animal lifestyles and behaviors. Human behavior has changed from the beginning of time to the present time. All the topics I have learned about in lecture are very interesting because I discovered things that I never knew. Also, I learn why some animals and humans behave the way they do and the reasons behind it. However the most interesting topic for me was kin selection because I found it exciting and surprising how degree of relatedness works with human selection. Kin selection is an evolutionary theory that pronounces that people are most likely to choose people who share similar genes or are blood related because it will increase the odds of gene transmission to future generations. I found this topic intriguing because when I compared it to my life, it made complete sense. Kin selection explains why family tends to be more altruistic to each other than to others. The reason behind this is because that behavior leads to having the chance of increasing inclusive fitness, which is the number of offspring an individual will produce. I’ve noticed this to be true in many situations that I have encountered in my life. For example, humans behave more altruistically to their family in many ways. Some families live in the vicinity of each other, which means they want to stay close to each other. Their degree of relatedness must be high. Also, people give more importance to family than to unrelated kin and an example of that would be buying them more costly gifts for Christmas or for a birthday. Another example I have seen is the care a grandchild receives from his or her grandparents. When a person has a baby, she is most likely offered help from her parents during the first year or two. Technically anyone can offer help but because grandparents are close related kin who are willing to offer help because their genes are in their grandchild and therefore want to pass them on. I now understand that humans act altruistically to closely related kin, people with higher degrees of relatedness, than to unrelated kin.