Tenet of Darwin’s Theory

Galapagos FinchNatural selection” is the name Charles Darwin used to describe the mechanism driving evolution and the origin of species.  The title of his book was The Origin of Species by Means of Natural Selection.  Natural selection was the “means” of evolution, the fundamental tenet of Darwin’s theory.

Natural selection emerged as the cornerstone law of evolution following the publication of The Origin in 1859. “I do believe,” Darwin argued, “natural selection acts slowly by accumulating slight, successive, favorable variations.”

Natural selection, the tenet of Darwin’s theory, when viewed through the lens of twenty-first-century technologies, increasingly faces scientific challenges.

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Coelacanth Genome

CoelacanthThe long-awaited analysis of one of the most influential lobed-finned fish in evolution history, the coelacanth genome (pictured left), was published last week by Chris T. Amemiya (pictured right below) of the University of Washington and Jessica Alföldi from MIT and Harvard in the prestigious journal Nature.

The coelacanth plays a crucial and colorful role in the history of evolution.

Biologist Louis Agassiz, born in Switzerland, became a professor at Harvard University and founder of the Museum of Comparative Biology and was the first to describe and name the fish in 1839. Ironically, Agazzi became a leading critic of Charles Darwin.

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Self-Assembly Origin of Life

DNA polymerase I.

A research team led by Michael Blaber of Florida State University College of Medicine recently reported a solution to a problem with the “protein-first,” also known as the protein self-assembly origin of life theory. The issue involves protein folding.

Biologically active proteins are only functional when folded into specific molecular structures.

Proteins’ ability to fold into specific structures is essential to performing cellular functions. While the team’s approach aligns with Charles Darwin’s theory, the protein self-assembly origin of life competes with the popular “RNA-first” origin of life theory.

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