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Evolution is the change in the heritable characteristics of biological populations over successive generations. [1] [2] It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. [3]
The basic mechanisms of evolution are applied directly or indirectly to come up with novel designs or solve problems that are difficult to solve otherwise. The research generated in these applied fields, contribute towards progress, especially from work on evolution in computer science and engineering fields such as mechanical engineering. [6]
A tree of life, like this one from Charles Darwin's notebooks c. July 1837, implies a single common ancestor at its root (labelled "1").. A phylogenetic tree directly portrays the idea of evolution by descent from a single ancestor. [3]
Swami B.V. Tripurari : Beliefnet article describing Hindu perspectives on evolution; The Perils of Vedic 'Science' , Meera Nanda, Beliefnet article on Hindu science and evolutionary theories. The Secret Diary of Charles Darwin, Sivasiva Palani: Discussion of contradictions between Hinduism and evolution in Hinduism Today. Hare Krishna
Nāgarī is an adjective derived from nagara , a Sanskrit word meaning "town" or "city", and literally means "urban" or "urbane". [21] The word Nāgarī (implicitly modifying lipi , "script") was used on its own to refer to a North Indian script, or perhaps a number of such scripts, as Al-Biruni attests in the 11th century; the form ...
The theory of recapitulation, also called the biogenetic law or embryological parallelism—often expressed using Ernst Haeckel's phrase "ontogeny recapitulates phylogeny"—is a historical hypothesis that the development of the embryo of an animal, from fertilization to gestation or hatching (), goes through stages resembling or representing successive adult stages in the evolution of the ...
The second is the notion of branching evolution, implying the common descent of all species of living things on earth from a single unique origin." [11] Additionally, "Darwin further noted that evolution must be gradual, with no major breaks or discontinuities. Finally, he reasoned that the mechanism of evolution was natural selection." [11]
The term "technological evolution" captures explanations of technological change that draw on mechanisms from evolutionary biology. Evolutionary biology was originally described in On the Origin of Species by Charles Darwin. In the style of this catchphrase, technological evolution can be used to describe the origin of new technologies.