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theory of evolution - Charles Darwin’s ideas of natural selection
Theory of evolution by natural selection essay
Essay about Evolution by natural selection
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Charles Darwin's theory of evolution centres on the idea that species compete to survive, and favorable characteristics are passed on from one generation to the next. Darwin said that evolution took place by a process of natural selection or survival of the fittest. This meant that the animals and plants best suited to their surroundings survived and were able to pass on their genes to their offspring. The ones that weren't best suited died off and didn't get the chance to reproduce. Animals and plants had to change or evolve due to environmental pressures. Over millions of years the conditions on the Earth have changed tremendously, the environmental conditions we have now are very different. If organisms hadn't adapted or changed to live in those changing conditions we would have no life on Earth. Those organisms that had the characteristics, which allowed them to survive, as food became scarce or the temperature got colder or warmer were able to survive and pass on the characteristics to the next generation. In any ...
My research of Darwinian evolution has led me to believe that there is little room for spirituality of any kind in a truly rigorous scientific theory of the origin of life. This is disconcerting, to say the least. Obviously we have outgrown a strictly creationist lens, but has religion become completely obsolete? Does spirituality have a real place amongst the scientific tenets of evolutionary theory, or is it merely a crutch that we lean on? Can God and Darwin co-exist?
"On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life," usually shortened to "the Origin of Species," is the full title of Charles Darwin's book, first published in 1859, in which Darwin formalized what we know today as the Theory of Evolution. Although Darwin is the most famous exponent of this theory, he was by no means the first person to suspect the workings of evolution. In fact, Charles owed a considerable debt to his grandfather Erasmus, a leading scientist and intellectual, who published a paper in 1794, calledZoonomia, or, The Laws of Organic Life. This set down many of the ideas that his grandson elaborated on 70 years later.
Only in the past one hundred years have men finally put aside their Biblical and mythical tales about creation, and looked to the facts in order to piece together a logical explanation for the origin of mankind. In turn, men were now able to explain the enigma of their origin without the presence of a supernatural being responsible for their creation. At the head of a slew of men trying to uncover logical reasons for mans derivation was Charles Darwin. Darwin was the most accomplished of these men because he was able to put forth a logical conjecture that was based upon facts and observations. This theory, for a short time, was able to end the feud among educated men because many now put their trust in this new “theory of evolution”. Unfortunately, this revolutionary new theory threatened the religious beliefs about creation and soon a new rivalry emerged between the creationists and evolutionists.
Charles Darwin is a revolutionary naturalist, his theories and discoveries of nature continue to stand two centuries later. Even as a young child, Darwin conveyed his interests in nature and later in his career, furthered his passion as a naturalist spending his earlier years gathering bulky counts of data. While studying at Cambridge University, he accepted the request to work as a naturalist on the scientific ship HMS Beagle collecting biological and geological data. On this excursion, he visited places such as the Galapagos Islands, Australia, and other South American islands to record and collect data. The data and fossils collected confirmed that complex plant life had evolved from a basis plant life. Until 1859, when he published On the
James Hutton was born June 3rd, 1726, in Edinburgh, Scotland. He was a Scottish farmer and a naturalist, later in life he was known as the father of modern geology.
Natural selection is the process proposed by Charles Darwin for how species evolved . Those individuals in a species that possess advantageous characteristics are more likely to survive and pass those characteristics than are individuals that do not possess those advantages.
Charles Darwin was a man of science. He had a true passion for all things involving both plants and animals. Darwin made many contributions to the field of science, but his main contribution that he is most well-known for involves his theories of evolution, or more specifically, how species tend to change over long periods of time through a process called natural selection. Natural selection is defined by Darwin as the “preservation of favorable variations and the rejections of injurious variations“ (Jacobus 900). Even though many of his theories have now been embraced by the scientific community as natural laws in motion, much controversy remains over whether or not his ideas should be perceived as true scientific law. Despite the discoveries of overwhelming amounts of evidence, many people still believe that evolution is exactly what Darwin called it—a theory, and nothing more.
Charles Darwin came up with the theory of evolution and used the term natural selection to describe it. He proposed that all living species derived from a common ancestor. In On the Origin of Species (1859), Darwin explained: “if variations useful to any organic being do occur, assuredly individuals thus characterised will have the best chance of being preserved in the struggle for life; and from the strong principles of inheritance, will then tend to produce offspring similarly characterised” (p127).
Within a few decades, geneticists determined that quantitative characters are influenced by multiple genetic loci and that the alleles at each locus follow Mendelian laws of inheritance.
Have you ever just sat and thought to yourself how the universe was created also what it took to create the planets and living organisms. I am explaining the definition of “Evolution” as defined by the scientist Charles Darwin. “The process by which organisms change over time as a result of changes in heritable physical or behavioral traits. Changes that allow an organism to better adapt to it’s environment will help it survive and produce offspring.” Theory of Evolution which was first formulated in his book titled “On the Origin of Species” in the year 1859.
Popularly referred to as the father of evolution, Charles Darwin was the fifth child of Robert Darwin and Susannah Wedgewood born the same year and day as Abraham Lincoln- a historical icon, February 12, 1809. He had four sisters, three older than him and one younger while his brother was older than he was and they belonged to a privileged, wealthy and well-known family. He held his father, Robert Waring Darwin, in high regard and he was a renowned physician with connections among the local gentry and new industrialists. Notably also, his grandfather- Erasmus Darwin, was a physician and poet with a liking to natural philosophy where his patients were from affluent backgrounds one of them being Josiah Wedgewood. Erasmus Darwin put forward a natural explanation for the origin and development of life where in his book Zoonomia, published in 1974, he looked into the domestication of animals, cross-fertilization of plants along with movement of climbing plants. Various works of his discussed the mechanism of inheritance and made observations on sexual selection. It is important to acknowledge the intellectual atmosphere that Charles and his father grew up in (Berra, 2009).
Evolution is something that is talked about frequently throughout people’s education, it is probably first brought to people’s attention in middle school more than likely. “The science of biology is very broad in scope because there is a tremendous diversity of life on earth… the source of diversity is evolution, the process of gradual change during which new species arise from older species” (OpenStax). According to OpenStax, “the term for where new species arise from older species is adaptation.” Which makes sense because, people always hear the most fittest are the ones to survive while the weak die. This where the term natural selection comes into place, according to The Recluant Biologist, “not all members are the same – within any population there is a variation in the physical characteristics of the individuals… Darwin reasoned that if some of these variants provide the individual with a slight edge over their competitors in the
Charles Darwin has had the greatest influence on the world by proving the evolution of living things. Charles Darwin had first noticed the similarities of plants and animals when he took a five-year cruise on the H.M.S. Beagle, which was available to him through a friend from school. During the cruise Charles Darwin started becoming interested with the similarities between the plants and animals that were similar on different islands with similar climates, so he decided to study them more closely.
The question of how man evolved has been pondered for some time. Many great philosophers and explorers have made attempts to try to answer this question. Charles Darwin was one of these people. Darwin led a full life of exploration, and during these adventures, he accumulated much information about evolution. He met many explorers that had various ideas of their own about how man evolved. In discussion with these people, he figured out if what they were telling him was fact or fiction. This helped him to formulate his own theory.
In 1859, English Biologist Charles Darwin suggested a process in which species change over time which is known as natural selection. Darwin did not discover natural selection using genetics as he had no knowledge of genetics since it had not been discovered. Since then genetics has provided the solid evidence to support natural selection as the process by which evolution occurs. He began his journey in 1831 when he went to work on the HMS Beagle where he spent five years drawing maps of lands they visited and keeping a journal of their findings with his crew members. Darwin observed that many species that were related, faintly differed depending on where they were found. Darwin’s observation was influenced by the writings of Thomas Malthus, who proposed a constant battle for survival among species which led to Darwin’s Controversial theory The Origin of species in 1859. A century has passed since Darwin has presented his Theory of Evolution through natural selection where he argued that species