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Charles Darwin was a British naturalist who proposed the theory of biological evolution by natural selection. Darwin defined evolution as "descent with modification," the idea that species change over time, give rise to new species, and share a common ancestor.
2 days ago · Charles Darwin’s theory of evolution had three main components: that variation occurred randomly among members of a species; that an individual’s traits could be inherited by its progeny; and that the struggle for existence would allow only those with favorable traits to survive.
Darwinism is a theory of biological evolution developed by the English naturalist Charles Darwin (1809–1882) and others, stating 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.
Darwin's theory of evolution is based on key facts and the inferences drawn from them, which biologist Ernst Mayr summarised as follows: Every species is fertile enough that if all offspring survived to reproduce, the population would grow (fact).
The book was immediately in great demand, and Darwin’s intensely controversial theory was accepted quickly in most scientific circles; most opposition came from religious leaders. Though Darwin’s ideas were modified by later developments in genetics and molecular biology, his work remains central to modern evolutionary theory.
Oct 19, 2023 · Charles Darwin was a 19th-century naturalist who revolutionized the theory of evolution. Learn about his life, his voyage on the HMS Beagle, and his discoveries on natural selection and adaptation. Explore how his ideas changed the way we understand the diversity of life on Earth.
with a hard casing at the end of its tail that Darwin saw as intermediate between the plain tail of a European viper and the full-blown rattle of a rattlesnake—which he considered the "more perfect" organ. But such talk was commonplace, and not in itself "evolutionary."
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