Posted: May 16th, 2022
Natural Selection
Student’s Name
Natural Selection
Natural selection is the process through which human and animal species adapt and change. Natural selection definitely applies to people. It is how nature rewards people who are better adapted to their environments with success in terms of enhanced survival and ability to reproduce more (Williams 18). Natural selection still continues to influence the evolution of a broad range of human characteristics, from when individuals begin giving birth to children to their body mass index. Many features vary among dissimilar human populations, from the size of the body to the color of hair, and those dissimilarities are normally associated with disparities in genes. Natural selection takes place when several of those characteristics help several survive and reproduce more in comparison to others. As a result, their genes turn out to be more widespread in the population with time, and it is the way humans evolve to adapt to environmental changes.
The thing I find most difficult about the relationship of people to natural selection is that natural selection sometimes makes compromises so as to attain reproductive success. As a consequence, people have developed a number of characteristics that pose real challenges to health today. For instance, after human beings began walking upright, they went through another main change: the brains grew to become much bigger. In order to accommodate a bigger brain, the shape of human faces also changed, and as such, the jaws had to become narrower (Williams 25). Therefore, this means that for most individuals, their 3rd molars, once important for chewing have no room to erupt through gums, so they become affected. If these affected teeth are not removed, they can become very painful or even cause infections. The thing that makes most sense to me is the matter of survival of the fittest. I believe it plays a dominant role in that the strongest human populations (with strong genes) have highest rates of survival.
Work Cited
Williams, George C. Adaptation and Natural Selection: A Critique of Some Current Evolutionary Thought. Princeton UP, 2018.
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