Posts Tagged ‘natural selection’

In the same way Isaac Newton discovered the physical laws of motion and gravity, Charles Darwin attempted to discover the natural laws of evolution in The Origin of Species. Natural selection became Darwin’s proposed natural law, as expressed in the title−The Origin of Species by Means of Natural Selection.

Today, Darwin’s theory of evolution is promoted as a “fact” that accepted by “all scientists”. Evolution as a “fact”, not theory, is center stage in the realm of politics. The media hammered presidential candidate Rick Perry for stating that evolution is “just a theory”. Ironically, though, the facts of evolution continue to elude even the vast majority of the most educated in Western society.

In an article published in BioEssays (2011) entitled “Why is it so difficult to accept Darwin’s theory of evolution?” Jacques Dubochet, professor of Ecology and Evolution at the University of Lausanne, Switzerland, was amazed to discover that less than 20% of attendees to a celebration of Darwin’s 200th birthday could “[w]rite down in a few words, the essential elements of Darwin’s theory of evolution”. Continue Reading

Anders Behring Breivik, a Norwegian right-wing extremist, confessed to be the perpetrator of the dual terrorist attacks in Norway on 22 July 2011. The attach included the bombing of government buildings in Oslo, causing eight deaths, and a mass shooting at a camp of the Workers’ Youth League (AUF) of the Labour Party on the island of Utøya, where he killed 69 people. Others are still missing.

In his 1518-page “European Declaration of Independence,” Breivik reveals himself as a champion of modern biology and the scientific worldview, listing The Origin of Species by Charles Darwin as one of his most “important” books. (p. 1407)

“Social-darwinism was the norm before the 1950”, Breivik laments. “Back then, it was allowed to say what we feel. Now, however, we have to disguise our preferences to avoid the horrible consequences of being labeled as a genetical preferentialist.” (p. 1227) Continue reading

Charles Darwin in The Origin of Species hoodwinks natural selection with alternating unlimited and limited power. Natural selection was Darwin’s “grand” natural law acting through the ages giving rise to ever increasing complex forms of life. This essence of the concept is captured in the title: The Origin of Species by Means of Natural Selection.

Natural selection, the proposed natural law driving the progress of evolution, was envisioned by Darwin, on the one hand, with powers like that of a deity: It has been said that I speak of natural selection as an active power or Deity; but who objects to an author speaking of the attraction of gravity as ruling the movements of the planets?
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The puzzling platypus was discovered long before Charles Darwin published The Origin of Species. This duck-billed oddity is like a mammal, a bird, and a reptile all in one species.

When the platypus, nicknamed the “watermole,” was first discovered in 1797 by early European settlers near the Hawkesbury River, outside Sydney, it triggered a lasting controversy. The perplexed local governor, Captain John Hunter, sent specimens back to Mother England for study.

The “watermole” was equally mystifying in England. Zoologists George Shaw suggested it was a “freak imposture” sold to gullible seamen by Chinese taxidermists. Suspecting fraud, they tried to pry the “duck’s bill” off of the pelt, leaving marks on the bill that are still visible today at the British Museum in London.
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In The Origin of Species, Charles Darwin explains how “external resemblances [of moths]… has been gained for the sake of protection” giving the moth “a better chance of escaping destruction from predaceous birds”… “So that we have an excellent illustration of natural selection.”

Bernard Kettlewell in the early 1950’s was the first to design an experiment to test Darwin’s “excellent example of natural selection” in two types of wooded areas in England—polluted and nonpolluted. Kettlewood demonstrated light colored peppered moths survived better than darker colored moths in areas where the tree trucks were of lighter color, and conversely— darker colored moths survived better than lighter colored moths in areas where the tree trucks were of darker color.

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Charles Darwin never mentions hemoglobin even in the sixth and last edition of The Origin of Species in 1872, even though this oxygen-carrying protein hemoglobin was discovered much earlier by Friedrich Ludwig Hünefeld in 1840. Hünefeld explains: “I have occasionally seen in almost dried blood… rectangular crystalline structures which under the microscope had sharp edges and were bright red.”

In 1851, Otto Funke published a series of articles in which he described growing hemoglobin crystals by successively diluting red blood cells with a solvent such as pure water, alcohol, or ether, followed by slow evaporation of the solvent from the resulting protein solution. Hemoglobin’s reversible oxygenation was described a few years later by Felix Hoppe-Seyler. Continue Reading

Swedish botanist, physician, and zoologist, Carl Linnaeus (1707 – 1778), founded the scheme of naming and classifying plants and animals with a genus and species name. This is known as binomial nomenclature. Linnaeus is known as the father of modern taxonomy. Linnaeus is also considered one of the fathers of modern ecology.

Linnaeus ranked as a legend even with his contemporaries. Swiss philosopher Jean-Jacques Rousseau sent him the message: “Tell him I know no greater man on earth.” The German writer Johann Wolfgang von Goethe wrote: “With the exception of Shakespeare and Spinoza, I know no one among the no longer living who has influenced me more strongly.” Swedish author August Strindberg wrote: “Linnaeus was in reality a poet who happened to become a naturalist”. Continue Reading

Natural selection is Charles Darwin proposed natural mechanism for the origin of new species, as the title implies—On the Origin of Species by Means of Natural Selection. Natural selection was Darwin’s proposed unifying “natural law of evolution”.

What is the evidence for natural selection? Darwin explains -

In order to make it clear how, as I believe, natural selection acts, I must beg permission to give one or two imaginary illustrations.

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Charles Darwin in The Origin of Species explains the role of natural selection in evolution: “I do believe that natural selection will generally act very slowly, only over long periods of time…. natural selection acts slowly by accumulating slight, successive, favorable variations.” The key to evolution is the accumulation of “slight, successive” changes.

In 1995, Edward B. Lewis, Christiane Nüsslein-Volhard, and Eric F. Wieschaus were awarded the Nobel Prize in Physiology or Medicine for their work on HOX genes. During the 1950’s, geneticist Edward B Lewis discovered the Bithorax complex (BX-C) group of HOX genes in the fruit fly Drosophila melanogaster. Continue Reading

Isaac Newton and Charles Darwin are similar up to the point of the great divide.

Although born nearly 200 years apart, Newton and Darwin were both Englishmen born into wealthy families, Newton was the son of a wealthy farmer, and Darwin was the son of a wealth physician.

Newton and Darwin were abandoned by their mother early in life: Newton’s mother went to live with her new husband at the age of three and Darwin’s mother died when he was just eight years old. Neither Newton nor Darwin gained respect from their fathers.

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