Darwinism:
Selective Breeding and Genetics
Darwinism and the theory of natural selection had far reaching implications for society both culturally and scientifically. For the first time in history a theory was proposed that offered a plausible mechanism for evolution. This paper examines the science behind natural selection as well as the impact Darwin has had on modern evolutionary paradigms. Specifically it poses two questions: (1) How did Darwin formulate his ideas about natural selection and evolution? And (2) Is natural selection still fundamentally valid or have we moved into a new evolutionary paradigm.
Pre Darwin.
Every scientific field has an earlier paradigm as scientific cannons change through the process of time. Before the advent of Darwin and his ideas about “natural selection” human evolution was perceived quite differently. During the Medieval Ages the predominate field of thought was in the “Great Chain of Being.” A structured hierarchy that believed everything had its place in a divinely inspired universe (Suber, 1997). An objects place on the “evolutionary” chain depended on the amount of “spirit” or “matter” it contained, less “spirit” and more “matter” placed it further down on the chain. Ideas such as “spontaneous generation,” which stated that organism could arrive fully formed from inorganic matter only served to enforce Christian ideals of divine inspiration and hinder any kind of true scientific research. (Evers, 1999)
Carolus Linnaeus (1707-1778), known as the father of taxonomy, was the first scientist to use empirical evidence in support of a hierarchal classification of organisms. Linnaeus conducted hybridization experiments in plants and began to classify them based on their reproductive organs into geneses’. Although the classifications were confusing and often unwieldy it marked the first time that scientific experiments had been conducted in this manner. Although the...
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