Theory of evolution
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Here I have published theory of evolution by Charles Darwin and his visits of Galapagos; in H.M.S. Beagle.Some descriptions from "THE ORIGIN OF SPECIES". Little bit about DNA.
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The document discusses two major intellectual revolutions - the Copernican revolution and Darwinian evolution. The Copernican revolution established the heliocentric model of the solar system with the sun at the center, as discovered by Nicholas Copernicus in the 16th century. Charles Darwin's theory of evolution by natural selection, established in his 1859 book On the Origin of Species, proposed that species evolve over generations through the natural selection of small, inherited variations that increase the individual's ability to survive and reproduce. The document provides background on Copernicus, Galileo, and Darwin, and summarizes some of the key evidence and ideas that influenced their revolutionary scientific theories.
Darwin
- Charles Darwin developed the theory of evolution by natural selection, which explains how all living things came to be through descent with modification from common ancestors and how they became adapted to their environments.
- His theory reconciled evidence from various fields like fossils, geographical distribution of species, embryology, and taxonomy. No other explanation has made sense of these diverse facts.
- Darwin's writings had profound impacts across many fields from geology to theology and influenced how humans are understood in relation to other animals. He made highly original contributions to many areas of science beyond just evolution.
history of evolutionary thought
1) Evolution is defined as gradual change over time. Charles Darwin proposed the theory of evolution by natural selection, where heritable traits that increase an organism's chances of survival are passed on to offspring.
2) Darwin observed variations among species on the Galapagos Islands that supported his theory of evolution from common ancestry.
3) Darwin's theory combined Mendel's principles of heredity with Malthus' population principles to explain evolution through natural selection acting upon inherited variation.
Evolution
The document summarizes key aspects of the theory of evolution including its timeline, major figures, and evidence. It describes how evolution occurs through processes like mutation, natural selection, genetic drift, and artificial selection. It outlines Charles Darwin's voyage on the HMS Beagle where he collected evidence and developed his theory of evolution by natural selection. This established that life evolves over generations through a process of common descent with modification from shared ancestors.
History of Cave Biology
Cave biology developed through different historical periods and was influenced by the prevailing scientific thought of each time. Early studies of cave organisms were mainly descriptive before Darwin published On the Origin of Species. After Darwin, debates emerged between natural selection and neo-Lamarckian ideas about use and disuse influencing evolution. By the early 20th century, Mendelian genetics was rediscovered and biospeleology declined in English-speaking countries, though it continued in France with philosophical debates about evolution.
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- 3. • Born: 12 February 1809, The Mount, Shrewsbury, United Kingdom • Died: 19 April 1882, Down House, Downe, United Kingdom • English naturalist
- 4. HIS WORKS • Journal of researches into the natural history and geology of the countries visited during the voyage of H.M.S. Beagle. [1845] • On the origin of species by means of natural selection. [1859] • The descent of man. [1871] • The expression of the emotions in man and animals. [1872]
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- 12. •NATURAL SELECTION :is the way that organisms best suited to an environment survive.
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- 17. ALIANS FUTURE OF HUMANS