What's the Darwin Theory? Is it true?

Answer 1

Evolution is an observed, indisputable fact. It has been observed in nature, and in laboratory settings.

Darwin's theory was an attempt to scientifically explain how evolution occurs. His primary thesis is that evolution occurs mostly through natural selection. That is, natural forces in the environment, and changes in an environment interact with the variation inherent in all organisms. Those organisms who have variations that are more favourable to survival will survive to have offspring, and will pass those favourable variations onto their offspring.

Again, this has been observed to occur in the wild and laboratory settings many, many times, and is taken as true by all reputable scientists. Thus, 'Darwin's theory' is still accepted as the primary force behind evolution.

The theory has been modified and elaborated over the 150 years since it was first proposed, as we have identified the source of inheritance of variability (DNA), and possible sources of the variability itself (i.e. mutations). There has also been identification that natural selection is not the only source of selection of inherited traits. Other factors such as genetic drift and founder's effects can also influence allele frequencies in a population.

A scientific theory is never 'proved'. This applies to the theory of gravity, the theory of light, Einstein's theory of relativity, and all other scientific theories. They can only be disproved, or supported through observations and predictions that are consistent with the theory. The theory of evolution through natural selection has never been disproven, and has more evidence and predictions backing its veracity than virtually any other scientific theory (including gravity and relativity).

Answer 2

Darwin's theory of evolution by natural selection. You have an good answer above by askh. Our understanding of how evolution occurs/occured is subject to change as we learn more but the fact that it has occurred and is still occuring is not much disputed within the scientific community. I believe the last poll done showed 99% of all earth and life scientists support the general theory of evolution. Amongst the public there is much misunderstanding and resistence based on religious beliefs. Science calls things like gravity a theory and in the spirit of being open to the data and intellectual honesty will overthrow ideas if we learn they are incorrect. Although Einstein showed Newton's model was off and the theory was modified, we don't question that gravity is a fact of life.

Answer 3

The theory of evolution has two parts.
- Occasionally, because of a genetic change (a mutation), a daughter organism is different from the parent. This difference may increase the likelihood that the daughter will survive and reproduce. The process is called variation.
- A mutation which increases survivability is more likely to be passed on to succeeding generations. This is called natural selection. Artificial selection is important nowadays -- we propagate trees that produce more oranges, cows that produce more milk, et cetera.

Both of these elements are known to occur, so the theory is proven to be true. See the reference for a history of how this process has created present-day life.

Answer 4

Theory of the evolutionary mechanism proposed by Charles Darwin as an explanation of organic change. It denotes Darwin's specific view of how evolution works. Darwin developed the concept that evolution is brought about by the interplay of three principles: variation (present in all forms of life), heredity (the force that transmits similar organic form from one generation to another), and the struggle for existence (which determines the variations that will be advantageous in a given environment, thus altering the species through selective reproduction). Present knowledge of the genetic basis of inheritance has contributed to scientists' understanding of the mechanisms behind Darwin's ideas, in a theory known as neo-Darwinism.
Modern knowledge of heredity—especially the concept of mutation, which provides an explanation of how variations may arise—has supplemented and modified the theory, but in its basic outline Darwinism is now universally accepted by scientists.

Answer 5

A theory means a "temporary hypothesis," which explains observed phenomena, until fresh observations are made, which cannot be explained by the existing theory. That is how science progresses, as theories get modified / changed to fit in the "new" non-conforming observations.

Answer 6

Darwin established his position in the scientific establishment as a distinguished geologist, and looked for a wife. Secretly, he was developing what would become his theory of natural selection, the aspect of his life which seems most significant nowadays. This section outlines that development, with links (headed #) to the sections below giving more detail.
At Darwin's Geological début, species related to places were shown when the ornithologist John Gould noticed that specimens from the Galápagos Islands formed "a series of ground finches which are so peculiar" as to form "an entirely new group." The anatomist Richard Owen found that Darwin's fossils showed that extinct species were related to current species in the same locality.

Transmutation ideas convinced Darwin that original immigrants had been altered somehow to become an array of new species, and he began to look at fossils in an evolutionary light.

In Secret notebooks Darwin's speculations included an "irregularly branched" genealogical tree, life as arising only once, and possible experiments. He developed an essentially materialist and deterministic view of human beings and began writing of "my theory".

Animal observations of an orang-utan at the zoo showed how human its expressions looked, and made him think that there was little gulf between man and animals. He investigated animal breeding and found parallels to nature removing runts and keeping the fit, with farmers deliberately selecting breeding animals so that through "a thousand intermediate forms" their descendants were significantly changed.

His Secret speculations considered instincts and mental traits, with habits, beliefs, facial expressions and even the "love of deity" having evolved. He thought of the social implications of evolution, suggesting female education to improve mankind which had been "created from animals."

Malthus and Natural Law led him to apply to his search for the Creator's laws the Whig social thinking of struggle for survival with no handouts.

In his Theory he compared breeders selecting traits to a Malthusian Nature selecting from variants thrown up by "chance", then continued to look to the countryside for supporting information.

Answer 7

darwins' theory is basically the belief that we evolved from the apes. As for it being true , my personal thoughts are the we did evolve but there are too many gaps in the darwin thoery to say that we for sure we were all apes at one point in history.

Answer 8

The Theory of Evolution. And yes, it's true.

Answer 9

Theory of evolution.

Answer 10

umm no. Hint---- Darwin THEORY. Its darwins explaination of evolution. Which hasnt been proven.