Evolution
The development of living organisms from non-living matter, as in the origin of life on Earth, or in the concept of spontaneous generation which was once held to account for the origin of life but which modern understanding of evolutionary processes has rendered outdated.
In 1908, English mathematician Godfrey H. Hardy and German physician Wilhelm Weinberg independently derived a mathematical model describing what happens to the frequency of alleles in a population over time. Their combined ideas became known as the Hardy-Weinberg theorem. It states that the mixing of alleles at meiosis and their subsequent recombination do not alter [...]
On his return to England in 1836 and for the next 17 years, Darwin worked diligently on the notes and specimens he had collected and made new observations. He was particularly interested in the obvious success of breeders in developing desired variations in plant and animal stocks. He wondered if this artificial selection of traits [...]
Continue reading about Theory of Evolution by means of Natural Selection
The fossil record can tell us about the structure and way of life of past animals and the sequence in which they appeared: the facts about the time dimension may enable us to root evolutionary trees. Obviously the fossil record is very patchy and very incomplete: animals lacking hard skeletons are less likely to leave [...]
Continue reading about What can fossils tell us about evolution?
The theory of organic evolution appears most plausible explanation for the occurrence of varied forms of plants and animals on this earth. But an absolute proof in this connection is lacking. The circumstantial proof is the only type of evidence available. The convincing evidences for the occurrence of descent with modification come from: Morphology and [...]
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