Mendel Rescued Darwin’s Theory

Pisum sativumMendel rescued Darwin’s theory of natural selection early in the twentieth century – to a point.

By the end of the nineteenth century, Charles Darwin’s influence had continued to deteriorate, stemming from his obsolete theory of inheritance.

In the search for a scientifically valid theory, scientists, early in the twentieth century, rediscovered Gregor Mendel’s genetic inheritance theory, which had been published thirty years earlier.

Mendel’s theory delivered what Darwin missed – a scientifically valid theory of inheritance capable of driving evolution.

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Inheritance, Second Principle of Natural Selection

Darwin Tree of Life Names A

Inheritance is the second of the five principles of natural selection introduced by Charles Darwin in The Origin of Species. While Darwin knew that inheritance plays a crucial role in natural selection, he was conflicted over how it works, noting –

“The laws governing inheritance are for the most part unknown.”

Niles Eldredge, of the American Museum of Natural History, introduced the V.I.S.T.A. framework to codify the principles of Darwin’s theory. Encapsulating Darwin’s five structural principles of natural selection are variationinheritanceselectiontime, and adaptation.

In 1837, nearly twenty years before publishing The Origin of Species, Darwin drew his first sketch linking inheritance to speciation (pictured left).

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Variation, First Principle of Natural Selection

Variation Birds

Variation is the first of the five principles of natural selection introduced by Charles Darwin in The Origin of Species. Darwin wrote –

“Natural Selection acts exclusively by the preservation and accumulation of variations,”

Niles Eldredge, of the American Museum of Natural History, introduced the V.I.S.T.A. framework to codify the principles of Darwin’s theory. Encapsulating Darwin’s five structural principles of natural selection are variationinheritanceselectiontime, and adaptation.

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Logic and Science

Logic and ScienceLogic and science play crucial roles in understanding how nature works. Importantly, however, there are distinct types of logic and methods in science. Selecting the appropriate type of logic and science is crucial for developing scientifically valid explanations.

Charles Darwin applied various logic and scientific methods in his life-long quest to explain how Earth’s biosphere works. The story of his quest is fascinating, giving insight into how the interplay of logic and science still influences modern evolution research.

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Phylogenetics of Coronaviruses

CoronavirusThree years into the pandemic, the origin of COVID-19 is still controversial. Two leading theories are under investigation: natural selection process or genetically engineered – each with vastly different implications. The phylogenetics of coronaviruses is the key to the COVID-19 origin dilemma and gaining insights into the theory of evolution.

Coronaviruses are RNA, not DNA viruses. RNA viruses are associated with causing the common cold, influenza,  mumps, and measles; coronaviruses in humans can cause respiratory tract infections ranging from no symptoms, mild symptoms to a cytokine storm resulting in organ failure and death in humans.

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