Science Essays and Research
Papers - Charles Darwin and Science
The
book “On the Origin of Species by Means of Natural Selection” was published in
1859, in which Darwin had explained the evolution of life as a process of
natural selection. Life, he wrote, is a competitive struggle to survive, often
in the face of limited resources. Living things must compete for food and space.
They must evade the ravages of predators and disease while dealing with
unpredictable shifts in their environment, such as changes in climate. Darwin
was of the view that, within a known population in a specified environment,
certain individuals have characteristics that make them more probable to
continue to exist and reproduce. These individuals will convey these vital
characteristics on to their offspring. The number of organisms with these
qualities increases as each generation passes on the advantageous combination of
traits. On the other hand individuals lacking the beneficial traits gradually
decrease in number. Darwin point of view was that natural selection commands the
equilibrium in a population toward those with the combination of traits, or
adaptation, best suited to their environment. (Microsoft Encarta Encyclopedia
2002)
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Darwin's colossal achievement is not limited only to the early scientific works
and his developmental works. His dedicated observation, thoughts,
inquisitiveness and vigor permitted him to make prominent perceptive
contributions to environmental science and other different disciplines. Darwin
was impressed by the inter connection of different species, climate and
environment. He stressed that the life in any area was the outcome of an amazing
history of struggle or war or "great battle for life". He proposed new solutions
to how organisms spread across the globe. These thoughts ultimately led to the
controversial theory of evolution.
Darwin's Theory Of Evolution And Natural Selection Of The Species
In "The Origin of Species" Charles Darwin had presented the theory that natural
selection was the method that elucidates the course of evolution. Darwin's
theory of natural selection did assist to influence most people that life
survives in its present shape as a consequence of evolution, rather than a
casual series of strange phenomenons. Darwin's theories fundamentally achieved
some most important accomplishment: The first was that all organisms share out
changes from a common ancestor, which maintained the theory of evolution more or
less convincingly and decisively. The second was that scientists are no more
forced to question whether evolution is fact or fiction. Evolution is considered
to be a scientific fact. Darwin initiated the theory of species changing and
adapting gradually in due course, and deduced that the adaptive change
frequently occurred via the mechanism of natural selection. The thoughts
included the terms "Natural Selection" and/or "Survival of the Fittest”, either
independently or as a group, which was a convincing scientific justification for
evolution. Darwin’s explanations also showed that a lot of characteristically
dissimilar organisms of plants and animals were interrelated through somens. He
portrayed Natural Selection as the "Preservation of favorable individual
differences and variations, and the destruction of those, which are injurious,
or the Survival of the Fittest."
An added part of Darwin's theory includes the variation in the physical and
habitual qualities of every species. This is the region in which the Survival of
the Fittest theory most frequently plays the foremost role. Darwin emphasized
that for a species to cope with the always varying environments and conditions
it is conditional that it must not only adjust, but must also be able to convey
on those modified characteristics to its children. According to Darwin the total
number of species on earth, including the much mass extermination, each one has
at some point; generate organisms with progressively higher intellect. If it is
assumed that the scientific society has appropriately evaluated the comparative
intelligence of fish, reptiles, birds, mammals and humans, then the relativity
of these changeable levels of intelligence are expected to remain the same. In
other terms, the intelligence of one species should not, according to Darwin's
theory, augment any more swiftly than the next, which would avert any
possibility of a currently less intelligent species sooner or later exceeding
human levels of intellect.
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Darwin's concept that species become accustomed to various environments without
any help from heavenly being is still acknowledged by most scientists, though it
has been expanded upon. One of the most widespread reasons people are so anxious
to establish Darwin as incorrect is because they have converted his theories to
mean that humans developed from apes. This was not however, his statement.
Evolutionism in fact declare that existing apes and humans advanced from a
common ancestor, but that ancestor was in a number of ways, fairly dissimilar
from existing apes. This clarification was not enough to satisfy people’s
vigorous claim of disrespect and blaspheme, but it does present an opportunity
of recognition for them to calm down, if they desire to do so. In spite of
everything, scientific theories can either be acknowledged or discarded just
founded on the reason that whether people like the effects of the consequences.
Theories live or die based on their capability or lack of ability to precisely
forecast explanations and create helpful substantiations. (flfl.essortment.com)
Darwin
initially tried in The Origin of Species to persuade that organisms are utterly
flexible and not permanent natural variety. He demonstrated through the domestic
plants and animals that these were well known to be vastly soft and to have
altered so much under domestic environments as to be categorized as different
species by taxonomists. He after that illustrated that the survival and plenty
of organisms was dependent on many factors, many of which tended to hold their
numbers in check such as climate, food, predators, available space etc. There
after Darwin described the consequences of differential death and survival on
reproduction, the perseverance and dissimilarity of form being natural
selection. Darwin's theory of genealogical evolution which involved
self-determining heredity unfolding one after the other was a collection of
different bodies of substantiation such as the chain of fossil forms in the
geological record, geographical distribution of life, recapitulative emergence
in embryology, homologies, and vestigial organs.
The well-known last paragraph to the Origin of Species elaborates a unique
experience of Darwin's visualization:
It is interesting to contemplate a tangled bank, clothed with many plants of
many kinds, with birds singing on the bushes, with various insects flitting
about, and with worms crawling through the damp earth, and to reflect that these
elaborately constructed forms, so different from each other, and dependent upon
each other in so complex a manner, have all been produced by laws acting around
us. These laws, taken in the largest sense, being Growth with reproduction;
Inheritance which is almost implied by reproduction; Variability from the
indirect and direct action of the conditions of life, and from use and disuse; a
Ratio of Increase so high as to lead to a Struggle for Life, and as a
consequence to Natural Selection, entailing Divergence of Character and the
Extinction of less improved forms. Thus, from the war of nature, from famine and
death, the most exalted object, which we are capable of conceiving, namely, the
production of the higher animals directly follows. There is grandeur in this
view of life, with its several powers, having been originally breathed by the
Creator into a few forms or into one; and that, whilst this planet has gone
circling on according to the fixed law of gravity, from so simple beginning
endless forms most beautiful and most wonderful has been, and is being evolved.”
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Those who favor Darwin claim that Current analysts frequently misinterpret the
meaning of the name of Darwin's book. They consider “origin of species” to stand
for the origin of life. Then it is often said that Darwin was 'unsuccessful' to
explain the origin of life correctly. But those who advocate ideas of Darwin are
of the view that this was not Darwin's stance. Darwin had argued that species,
which is the different kinds of organisms, we observe has not come from manifold
exceptional formation and creation actions. Instead that species were the
adapted offspring of earlier forms. Darwin also explained that the beginning of
species was in descent with change not natural creations according to ecological
conditions or divine involvement. (http://65.107.211.206/science/darwin/darwinov.html)
Reaction In Contemporary England
The reaction to the Origin of species was severe and immediate. Some biologists
disagreed with the Darwin and claimed that he could not verify his theory. A
large number of people disapproved Darwin’s concept of variation, giving reason
that he could make clear neither the origin of variations nor how they were
passed to following generations. This specific scientific doubt was not replied
until the beginning of current genetics in the early 20th century .In fact, many
scientists continued to express doubts for first half of the 20th century about
the truth of the Darwin’s theory. The most made known aggression on Darwin’s
ideas, nevertheless, was not made by the scientists but from religious opponents
in England. The thinking that living things had evolved by natural processes
denied the special creation of humankind and seemed to place humanity on a plane
with the animals; both of these ideas were serious contradictions to orthodox
theological opinion.
The book Origin of Species produced significant public enthusiasm. Scientists,
politicians, and important people of all class read and talked about the book,
some protecting and some rejecting the Darwin's ideas. The most noticeable of
them all involved in the controversies was T.H. Huxley, known as “Darwin's
bulldog,” who defended the theory of evolution with articulate and sometimes
mordant words on public occasions as well as in numerous writings. Evolution by
natural selection was indeed a favorite topic in society salons during the 1860s
and beyond. But grave scientific controversies also came up, first in Britain
and then in the United States. A renowned naturalist Alfred Russell Wallace, who
had hit upon the idea of natural selection independently, had sent a short
document to Darwin from the Malay Archipelago. On July 1, 1858, one year before
the publication of the Origin, a paper jointly written by Wallace and Darwin was
presented, in the absence of both, to the Linnean Society in London. In this
paper Darwin had developed the theory in considerably more detail, provided far
more evidence for it, and was primarily responsible for its acceptance.
Wallace's views differed from Darwin's in several ways, most importantly in that
Wallace did not think natural selection sufficient to account for the origin of
man, which in his view required unswerving divine interference.
Charles Darwin's theory had also made a remarkable effect on the world as a
whole. It has provoked debate; while at the same time generated a new variety of
scientific thinking. Darwin was able to obtain extensive support for his idea
mostly based on evidence and the way it was presented .The Origin of Species was
also a breakthrough that used his own work and the ideas of others even if they
were not directly linked to evolution, to cover the way for the completion of
his theory (Bowler). In The Origin of Species Darwin write that “young with a
certain favorable adaptation will pass it on to the next generation and survive
or adapt even more using the first adaptation”. This means that humans were
created in the same way In Darwin's time; this was unacceptable and prevented
some from supporting his idea. Some challenged his theory because they opposed
the association of animals and man. In addition, some did not believe that
Darwin's justification of his theory and some evidence supporting it was
scientifically felt enough.
The supreme reaction was due to controversy regarding the Darwinian theory
involves Darwinism's clashing views with Creationism. Creationism is the broad
range of beliefs involving God's intervention, which also explains the origin to
the universe, life, and the different kinds of plants and animals on earth. This
was the reason that the church in England opposed the theory being in
confrontation with the religious ideas. Darwin’s evidence however did not concur
with Creationism. This also resulted in a great uproar with the Christian church
in his time. During early part of the last century the theory of evolution was
gaining a greater presence in schools, but evangelic Christians continued to be
skeptical of the theory and this difference exists even in this era. (bucconeer.worldcon.org)
References
Microsoft Encarta Encyclopedia 2002
Charles Darwin's The Origin of Species, November 16, 2001, http://flfl.essortment.com/charlesdarwin_rjnw.htm
Charles Darwin (1809-1882) Gentleman Naturalist, Last modified 28 September,
2002,
http://65.107.211.206/science/darwin/darwinov.html
Darwin and Natural Selection, October 28, 2002,
http://anthro.palomar.edu/evolve/evolve_2.htm
Bowler, Peter J. Charles Darwin The Man and His Influence, New York, NY:
Blackwell Publishers Oxford, 1990.
The Darwinian Theory and Its Impact On Our Lives and Society, November 16, 2001,
http://www.bucconeer.worldcon.org/contest/2002e_3.htm
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