top-rated free essay

Darwin S Theory Of Evolution And Natural Selection

By abg1997 Feb 08, 2015 466 Words
Darwin’s Theory of Evolution & Natural Selection
Charles Robert Darwin was born on 12 February 1809 in Shrewsbury, Shropshire into a wealthy family. Darwin himself initially planned to follow a medical career, and studied at Edinburgh University but later switched to divinity at Cambridge. In 1831, he joined a five year scientific expedition on the survey ship HMS Beagle. This is where he came up with his theory of evolution. During his voyage on the Beagle, Darwin found evidence that challenged traditional belief that species are unchanging. During this, he read Charles Lyell’s book Principles of Geology. As Darwin began visiting many places, he began to see things that he thought could be explained only by a process of gradual change. He realized the plants and animals on the Galapagos Islands resembled those in South America. He later suggested that the animals migrated to the Islands from South America and changed after they arrived. He later called this change evolution. When he returned from his voyage he continued his studies, but did not report his ideas of evolution until many years later. The key to Darwin’s thinking about how evolution takes place was an essay written in 1798 by Thomas Malthus. Malthus suggested that human populations do not grow unchecked because death caused by disease, war, and famine slows population growth. Darwin realized that his hypothesis can apply to all species. Considering Malthus’s view and his own observations and experience in breeding domestic animals, Darwin made a key association. A process in nature in which organisms possessing certain genotypic characteristics that make them better adjusted to an environment tend to survive, reproduce, increase in number or frequency, and therefore, are able to transmit and perpetuate their essential genotypic qualities to succeeding generations. He call this natural selection. In 1844, Darwin finally wrote down all these ideas about evolution and natural selection in and early outline that he showed to few scientists. He decided to publish it after being contacted by Alfred Russel Wallace. His book On the Origin of Species by Means of Natural Selection appeared in November of 1859. Darwin’s theory of evolution and natural selection were based on four major points. 1) Inherited variation exists within the genes of every population or species. 2) In a particular environment, some individuals are better suited to survive and have more offspring. 3) Over time, the traits that make certain individuals of a population able to survive and reproduce tend to spread in that population. 4) There is overwhelming evidence from fossils and many other sources that living species evolved from organisms that are extinct. Over all, without Darwin, we wouldn’t be where we are in science today. He lead us to believe in evolution and natural selection, helping us know many of the things we now know.

Cite This Document

Related Documents

  • Darwin & The Theory of Natural Selection

    ... When leading scientific theories and concepts somehow manage to find a way to your dinner table and become the subject of discussion while you much down on beef and boiled broccoli, there’s a chance you might have nothing to add to the conversation. And after hearing comments and arguments made by the rest of your company or family members...

    Read More
  • Darwin's Theory of Evolution by Natural Selection

    ...obtusata a Model Organism for Understanding Darwin’s Theory of Evolution by Natural Selection ABSTRACT: The mechanisms for individuals in a population to survive heterogeneous habitats have been a strong debate within the scientific community. The native European Littorina obtusata are a great model organism to study Darwin’s Theory of Evo...

    Read More
  • Charles Darwin Natural Selection to Charles Darwin and the concept of evolution. Although he did not invent the idea, he did carry out the necessary research to document that evolution occurred and then made the idea acceptable for scientists and the general public. This was not easy to do, as the idea of evolution was not widely accepted because of the views of the p...

    Read More
  • Natural Selection and Evidence for Evolution

    ...UNIT 1 – LESSON 2 NOTES Natural Selection and Evidence for Evolution:  The mechanism for evolution is called Natural Selection to distinguish it from Artificial Selection.  Evolution occurs at the population level because genetics don’t change. The frequencies of different genetic types (genotypes) within a population do change ov...

    Read More
  • Evolution and Natural Selection

    ...STATED CLEARLY: EVOLUTION AND NATURAL SELECTION (TRANSCRIPT) What exactly is evolution? In biology, the theory of evolution doesn’t exactly tell us how life began on Earth, but tells us how life, once it came into existence, diversified into the many incredible forms we see now and in the fossil record. It also helps us make sense of the way...

    Read More
  • Darwin and His Theory of Evolution

    ...Darwin and His Theory of Evolution Tamitha Chavez South University Online Darwin and His Theory of Evolution Charles Darwin was an English naturalist born February 12, 1809. Darwin was interested in how both man and plants came to be the way they are currently. After a great deal of research he wrote a book titled On the Origin of Specie...

    Read More
  • Darwin and Natural Selection

    ...Darwin and Natural Selection 1. Yes, this article is credible information. Daniel O’Neil, who is the Professor Emeritus of Anthropology Behavioral Sciences Department in Palomar College, wrote the article. 2. Based on the reading, we can infer that Darwin’s upbringing as a child was quite luxurious and opulent. We can interpret this fr...

    Read More
  • Charles Darwin and the Theory of Evolution

    ...Charles Darwin and the Theory of Evolution Charles Darwin (1809-1882) Darwin was a British scientist who first set the building blocks for the theory of evolution, and transformed the way in which we think about the natural world and the organisms within it. Charles Robert Darwin was born on the 12th of February 1809 in Shrewsbury, Shropshire...

    Read More

Discover the Best Free Essays on StudyMode

Conquer writer's block once and for all.

High Quality Essays

Our library contains thousands of carefully selected free research papers and essays.

Popular Topics

No matter the topic you're researching, chances are we have it covered.