Charles Darwin Theory

What is Charles Darwin Theory

The English naturalist Charles Darwin (1809-1882) had developed the Darwinism theory in biological evolution and others, stating that through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce, all species of organisms arise and develop. This theory is also known as Theory of evolution.

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Darwin’s Contribution

In the 19th century Charles Darwin, an English naturalist, made an extensive study of nature for over 20 years. The observations on animal distribution, and the relationship between living and extinct animals has been found by him, and finally found that not only between them but also with the other species that existed millions of years ago the present living animals share similarities to some extent, and among which some have become extinct.

Due to his contribution to the establishment of the theory of evolution, Carles Darwin is known as the father of evolution. To remove all the conventional old beliefs that had been helped by his theory, which said that the formation of various species was a supernatural phenomenon or act of the Almighty. A more rational explanation of the formation of new species has been given by Darwin's evolutionary theory of natural selection.. Various species originated from a single species as a result of adaptation to the changing environment, as per the natural selection.


The Theory of Evolution

The following ideas regarding the theory of natural selection has been given by Darwin

1. Species keep on evolving or changing with time. As the environment changes, the requirements of an organism also change and they adapt to the new environment. As per the natural requirements, this phenomenon of changing over a period of time is called adaptation.

2. As per Darwin’s theory, only the higher changes are naturally selected and the lower ones are eliminated. Thus, to a progressive evolution, not all the adaptations contribute. 

3. Almost all organisms share common ancestry with some organisms. All organisms had one common ancestor at some point in time and kept on diverging ever since, according to Darwin.

4. Darwin also studied that the birds of Galapagos Island (Darwin’s finches) developed different beaks as per the availability of the food. This proved adaptive radiation.

5. According to Charles Darwin, evolution is a very slow and gradual process. It has been concluded by him that evolution took place over a very long period of time. We usually refer to billions of years, as we talk about the time period in evolution. A long period of time the generation of a species has been taken from another. As the changes and adaptation take a long time to stabilize and give rise to a new species, it is a very steady process. 

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Charles Darwin’s Evolution


The Importance of Charles Darwin’s Theory

There are many theories given by Charles Darwin, which are accepted and are still followed as the best available explanation of the existence of life on this planet earth. A deep impact on the understanding of the evolution of human life has been done by Charles Darwin’s theories. There is much importance to Darwin's theory and the impact was not limited to science itself.


According to Darwin’s Theory of Evolution

  1. The first cellular forms of life appeared on earth about2000 million years ago.

  2. Later single-celled organisms, followed by the multicellular organisms, and invertebrates were formed and became active.

  3. Different organisms started to invade from water to land, and Jawless fish evolved. Later, amphibians, reptiles and some of the viviparous mammals came into existence.

  4. The primates, which evolved about 23.03 to 5.333 million years ago, resembled today's gorillas and chimpanzees.

  5. The modern Homo sapiens arose during the ice age between 75,000-100,000 years ago.

  6. All living organisms reproduce and multiply enormously.

  7. No two individuals are alike. Either in their physical features, behavior, etc, they are different from each other. 

  8. Some traits are consistently passed on from their parents to their offspring.

  9. In all living species the rate of reproduction varies. Some reproduce more and some minimum.


Fun Facts

1. Darwin was born on the same day (on february 12, 1809) as Abraham Lincoln.

2. Darwin waited more than 20 years to publish his groundbreaking theory on evolution.

3. There are over 340 breeds of dog, yet they all come from one kind of wild wolf that existed many years ago.

4. The same five-fingered bone structure has been shared by humans in their hands with lots of other animals that have paws, wings or flippers, such as lemurs and bats.

5. The slightest difference in colour or design can help an animal or plant live, survive and reproduce better in the wild. This is known as natural selection.

6. If animals and plants did not compete to survive, the earth would be covered by the offspring of a single pair.

7. Fossils are evidence of extinct species. However, perfect conditions are needed for fossils to form.

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Fossils

8. We are able to see from fossils that dinosaurs, woolly mammoths and dodos lived many years ago. But we’ll never really know all of the weird and wonderful species that previously existed.

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FAQ (Frequently Asked Questions)

1. What is The Summary of Charles Darwin’s Theory of Evolution?

The English naturalist Charles Darwin (1809-1882) had developed the Darwinism theory in biological evolution. It has been stated by Charles Darwin theory, that evolution happens by natural selection. A variation in physical characteristics is being shown by individuals in a species. With characteristics best suited to their environment individuals are more likely to survive, finding food, avoiding predators and resisting disease.

2. What is Natural Selection According to Darwin?

Charles Darwin in 1859 set out his theory of evolution by natural selection as an explanation for adaptation and speciation which is known as Darwin's theory. Natural selection has been defined by Darwin in his theory as the principle by which each slight variation of a trait, if useful, is preserved.