Charles Darwin's Theory Of Evolution

Biological evolution is a change in the characteristics of living organisms over generations of time. Though a person may be different from their parents; the offspring and the parents will generally look similar. On a wider scope, all humans consist of the same parts; a nose, eyes, mouth, legs, and arms. This basic body plan has stayed similar for thousands of years. However, millions of years ago our ancestors may have had longer hair, sharper teeth, and a smaller brain, mostly due to the environment our ancestors were living in when it was more important to climb a tree than it was to read a book. Years before this, humans would have arms for front legs and years before this, they would have fur and before this: our ancestors would only

This helps organisms adapt to their environment and therefore giving these evolved organisms a higher chance of survival and producing more offspring. This inevitably causes these new offspring to be born with their parent’s helpful traits which would result in the population consisting of mostly these evolved offspring; those who don’t adapt will have a lower chance of survival and reproduction. Additionally, Darwin had four key points to prove his theory of evolution which are called the evidence of evolution consisting of the fossil record that helps determine how old a fossil is, geographic distribution of living species which helps explain how different species of an organism are located across the world, homologous body structures that are the same body structures that are the same organ or physical trait that are the same embryonic tissue, but become much more mature structures. Similarities in embryology when the early stages of organisms are very similar (especially in animals with backbones). Darwin also believed that evolution does not follow any particular pattern and is not predetermined. Using his theory of evolution, Darwin created a theory on how the population of elephants mostly have long trunks when years ago, the elephant population had short trunks. According to Darwin, most elephants had short trunks but there were a select few of elephants who had long trunks. Due to the lack of vegetation and water, these elephants could reach, elephants with these short trunks could not get their food, and began to die off. However, those elephants with longer trunks were able to reach the higher branches of vegetation and water and were able to survive