Charles Darwin Evolution

Upon his return to London Darwin concluded thorough research of his notes and specimens many ideas. Out of this study grew several related theories: one, evolution did occur, two, evolutionary change was gradual, requiring thousands to millions of years, three, the primary mechanism for evolution was a process called natural selection, and four, the millions of species alive today arose from a single original life form through a branching process called "specialization."

Darwin wanted to further his studies in plant and animal life, and he also became interested in the similarities of plant and animal species to those of the human species. He noticed that humans too also had to develop new characteristics that would help them adapt to their environments. This made him want to look further into where humans came from and also question the idea of creationism. He argued that men are animals because they have to adapt to their surroundings just as animals do. He suggested that the stronger animals have a better survival chance and they produce offspring that carry this trait. A whole new population of species can derive from these offspring and traits that have evolved from older generations and species. This became known as Darwin’s Theory of Evolution.

From the beginning of Charles Darwin’s writing of the “Natural Selection; or The Survival of the Fittest,” as edited by Joseph Pendleton, we find that he feels that nothing holds a light to as genius as the works of natural selection when he verbalized, “Can we wonder, then, that nature's productions should be far 'truer' in character than man's productions; that they should be infinitely better adapted to the most complex conditions of life…,” (Darwin 42). Being more of a verbal expression than a question, Darwin clearly feels that in comparison to natural selection, the breeder (man) selection, which he also speaks of in his literature, does not stand a chance. By giving examples, Darwin shows that natural selection can make something transpire

While other naturalists thought that external things cause the variation of species Charles Darwin believed that it was something more than that. Darwin tells us that his study of domesticated animals, cultivated plants and natural organisms will help explain his theory on the origin of

The excerpts from “The Origin of Species”, show his attempt to justify when evolution was happening. The “struggle for life”, described as this will to live would make organisms adapt to better survive. “Any variation” would make the organism distinct from its predecessor, which would cause the offspring to be unique as well. This gradual change is what Darwin believes to be survival of the fittest. The organism with a “variation” that

In 1858, the combined works of Charles Darwin and Alfred Wallace were presented to the Linnean Society in London. The two papers dealt with the theories of evolution and natural selection, both of which were relatively unknown scientific theories at the time but which are widely recognized today. The theory of natural selection indicates that if an organism is better suited to its environment, it will be more likely to survive and have offspring (Urry 11). Evolution is the one of the main themes of biology and is accepted as the cause of the diversity of life. Simply put, organisms have evolved to survive the environment that they live in and while very diverse, they share a common ancestor (Urry 2). While modern technology has made it easier

Not only did Darwin add to the theory of evolution, but he also came up with a theory of his own to support evolution, natural selection. Natural selection is a mechanism by which individuals that have inherited beneficial adaptations produce more offspring than do other individuals. Basically, what this means is that in nature specific characteristics that would provide more advantages are given to certain individuals. His theory of natural selection brings us right back to the Galápagos Islands where he saw variation among species. That variation had each species well-suited to their

By discovering similarities among various species, Charles Darwin concluded that all species had a common ancestor. He then developed a theory of evolution that species changed over time to adapt the changing environment. However, for those who failed to change and adapt, they gradually became extinct. He believed that species evolved through natural

Darwin stated that organisms exhibiting “advantageous variations” will be more likely to survive, and those who did not have the variations wild die and their lineage will become extinct. After establishing the main principles of natural selection he goes on to say that the continual modification and divergence of organisms creates a branching “course of action” for evolution. In this “course of action” new species continually branch off from old ones. The “branches” represent a link between species. This is the point where Darwin’s book challenges the theory of creationism. He says that the reason many species look alike is because they have either evolved from one another, or they both evolved from a common parent species. This implies that

The finches had evolved their beaks specifically to eat various kinds of foods on the islands they were on. Darwin wrote that when “an immigrant first settled on one of the islands, … it would undoubtedly be exposed to different conditions in the different islands [where] it would have to compete with a different set of organisms. “…Then, natural selection would probably favour different varieties in the different islands” (Darwin, 1859). The finches had developed different shaped beaks for their different food sources. The birds that were most suited for survival in their environment had more opportunities to breed and, as a result, their characteristics and traits were passed on to other generations. These birds that had further opportunities to breed were naturally selected, because they were better suited to survive, and thus, passed on the traits that helped their survival. Birds that did not have beaks appropriate for the food sources on the island had no chance to breed or pass on their traits, so the trait for that beak type was not as prevalent. This natural selection over time created a population of birds with beaks most fit for food sources on the islands.Biogeography investigates the distribution and spread of organisms across the earth, and provides compelling evidence of evolution. Darwin observed many different species while has was on the HMS Beagle. He noted that,

According to history, Charles Darwin is the first scientist to frame the theory of evolution by natural selection. It was publish in his book title "On the Origin of Species 1859”. Darwin express the theory of evolution by natural selection as a process by which species change over a period of time. This change take place because of the changes in genetic and behavioral traits. The ability of the organisms to change over time or adjust to fit environmental factors is due to the ancestral trait. The evolutional theory was supported by great body of evidence from various scientific disciplines.

Charles Darwin exposed his ideas on evolution by natural selection in a book called, 'The Origin of Species' (1859) where he stated that all species have descended from a common ancestor and therefore evolved into different species by what he called Natural Selection. He believed that phenotypic variation exists among individuals and that the variation is heritable. Also those individuals with heritable traits better suited to the environment they live in will survive and pass on their advantageous alleles to the next generation.

Charles Darwin broached the theory of natural selection in his book the Origin of Species, which has been considered the basis of evolutionary biology to this day. Natural selection is when populations of a species evolve over the course of many generations. Darwin believed that species were not created separately, but instead, species were derived from one another. In other words, the evolution of species creates many variations among creatures, and this is because all of those species came from a common ancestor, and characteristics changed to increase the species chance of survival.

1. The text was written by Charles Darwin, who is renowned for his theory of evolution. Besides his book The Origin of Species, he also wrote Voyage of the Beagle and The

Darwin first presented his theory of evolution by natural selection through his book called ‘On the Origin of Species’. The book was released in 1859 and it explained the process of how organisms changed over time through the result of changes in heritable physical or behavioural traits. These changes allow an organism to adapt to the environment that it inhabits so that the organism’s chances of survival improve and produce more offspring (Than, 2015). However, biological evolution does not simply mean a change over time. It is believed that the central idea of biological evolution is that all organisms on Earth share a common ancestor (Understanding Evolution, 2015). Darwin’s theory ‘presumes the development of life from non-life and stresses a purely naturalistic (undirected) ‘descent with modification’’ (All About Science, 2015). Mutations that aid the survival of an organism are preserved and that is a process called natural selection. The beneficial mutations are passed on to the next generation and over time, the beneficial mutations accumulate and the result is variation between organisms (All About Science, 2015). The fact that there are numerous species that are living and extinct shows that there must have been a reason why one organism had the ability to survive and the other did not. Their survival depended on their adaptability to their environment (American Museum of Natural History, 2015).