What is Evolution? This question has been bothering many college students throughout the history of evolution. There have been many theories formulated on the subject but none has stood the test of time. Evolution has actually been a major factor in how we see the world around us today and is an important part of how we classify diseases, bacteria, and other such biological organisms. In this article I will briefly go over what is evolution, how it is supported by science, and where the controversy lies.
First off, what is evolution? Evolution is change in the genetic attributes of biological populations over multiple generations. These attributes are actually the genetic expressions of genes, which are passed down from parent to children during reproduction. For instance, humans and chimpanzees are both descended from a common ancestor that lived some six to seven million years ago. Evidence of this common ancestor can be found in chimpanzees’ jaws and skulls. This evidence supports the theory that all humans and all chimpanzees have changed over the course of the past six to seven million years.
The next topic we will discuss what is evolution is the theory of natural selection. This theory states that over time natural selection has caused certain traits to become more prevalent than others. The favored traits can be used to explain the existence of certain diseases in some organisms and why these organisms have become more dominant in comparison to others. Another example of how natural selection is believed to occur is through the process called gene flow, in which a particular trait can spread rapidly through a population due to its advantageous attributes.
Lastly, one of the main theories regarding evolution is that species can survive and thrive according to which traits they are most likely to adapt to and utilize. If two species are closely related then each species can choose to change only its physical features while leaving its genetic structure unchanged. For instance, a cat that is only interested in altering its body to look more like that of a wolf would have difficulty adapting to conditions on earth that were very different from what it needs to survive. Therefore, it can be concluded that adaptation is the only possible explanation for the differences between closely related species.
Some people have even proposed the idea that all life on earth began through a single chance occurrence. In other words, all organisms began with their genetic combinations. Over time however, the rate of evolution decreased due to the accumulation of random mutations. These mutations did not act in isolation; rather, they acted in conjunction with each other and through the results of these interactions, various genes were brought into being.
Studies show that around half of all living things today carry DNA from a common ancestor. Furthermore, scientists have discovered that human DNA is very similar to that of all other animals. Based on this fact, it can be concluded that all humans, and all other creatures with a common ancestry to humans, followed a common ancestral route across the universe. Any significant amount of variation from this route would result in species divergence, meaning that something has left a mark on the blueprint of everything that came before.
There are many theories on what is evolution. For instance, Charles Darwin held that all living things are evolving, but that it is up to us whether or not we choose to adapt or try to avoid changes. Similarly, proponents of Intelligent Design believe in evolution but give special attention to the way in which life on earth has developed through time. The Theory of Evolution is important to both believers and non-believers. On the one hand, it helps us understand the evolutionary pattern and process and the gradual development of species through time.
Meanwhile, theories on what is evolution offer an explanation of how species appear and disappear over time. It also helps us understand the diversification of living organisms over time. These include how species became more diverse over the years, how species began to specialize for specific roles, and how species became less common as different environments changed. This information helps us understand both why species evolved in the first place, and how they might evolve in the future.