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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]
Professor of biology Jerry Coyne sums up biological evolution succinctly: [3]. Life on Earth evolved gradually beginning with one primitive species – perhaps a self-replicating molecule – that lived more than 3.5 billion years ago; it then branched out over time, throwing off many new and diverse species; and the mechanism for most (but not all) of evolutionary change is natural selection.
Evolution provides the field of biology with a solid scientific base. The significance of evolutionary theory is summarised by Theodosius Dobzhansky as "nothing in biology makes sense except in the light of evolution." [78] [79] Nevertheless, the theory of evolution is not static. There is much discussion within the scientific community ...
Charles Darwin in 1868. Darwinism is a term used to describe a theory of biological evolution developed by the English naturalist Charles Darwin (1809–1882) and others. The theory states that all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce.
In the early 19th century prior to Darwinism, Jean-Baptiste Lamarck (1744–1829) proposed his theory of the transmutation of species, the first fully formed theory of evolution. In 1858 Charles Darwin and Alfred Russel Wallace published a new evolutionary theory, explained in detail in Darwin's On the Origin of Species (1859).
A pre-programmed task, as in a military maneuver, using this definition, may be termed an "evolution." After the publication of Charles Darwin 's The Origin of Species in 1859, "evolution" became primarily associated with biological evolution as a non-guided process for the differentiation of forms of life from a common ancestor.
According to a 2024 survey conducted on anime fans by Polygon, 65% of the surveyed anime fans said that they find anime more emotionally compelling than other forms of media and more than 3 in 4 of Millennial and Gen-Z fans use the medium as a form of escapism. Almost two-thirds of the anime-watching Gen Z audience said they emotionally connect ...
A second season, Free! - Eternal Summer, aired 13 episodes between July 2 and September 24, 2014 and was simulcast by Crunchyroll and Funimation. [2] An original video animation episode was included with the seventh Blu-ray Disc and DVD volume released on March 18, 2015. [3] A third season, Free! - Dive to the Future, premiered on July 11, 2018 ...