Evolution | Definition, History, Types, & Examples | Britannica
6 天之前 · Evolution, theory in biology postulating that the various types of living things on Earth have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations. The theory of evolution is one of the fundamental keystones of modern biological theory.
Neo-Darwinism | Evolutionary Theory, Natural Selection
Neo-Darwinism, Theory of evolution that represents a synthesis of Charles Darwin’s theory in terms of natural selection and modern population genetics. The term was first used after 1896 to describe the theories of August Weismann (1834–1914), who asserted that his germ-plasm theory made impossible
Evolution - Natural Selection, Genetics, Adaptation | Britannica
6 天之前 · De Vries proposed a new theory of evolution known as mutationism, which essentially did away with natural selection as a major evolutionary process. According to de Vries (who was joined by other geneticists such as William Bateson in …
Evolution - Darwin, Natural Selection, Genetics | Britannica
6 天之前 · History of evolutionary theory. Early ideas; Charles Darwin; Modern conceptions. The Darwinian aftermath; The synthetic theory; Molecular biology and Earth sciences; The cultural impact of evolutionary theory. Scientific acceptance and extension to other disciplines; Religious criticism and acceptance; Intelligent design and its critics
Evidence for evolution and Charles Darwin and Theodosius …
evolution, Biological theory that animals and plants have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations. It is one of the keystones of modern biological theory. In 1858 Charles Darwin and Alfred Russel Wallace jointly published
Evolution - Natural Selection, Adaptation, Genetics | Britannica
6 天之前 · Evolution - Natural Selection, Adaptation, Genetics: The central argument of Darwin’s theory of evolution starts with the existence of hereditary variation. Experience with animal and plant breeding had demonstrated to Darwin that variations can be …
Human evolution | History, Stages, Timeline, Tree, Chart, & Facts ...
2025年1月7日 · Human evolution, the process by which human beings developed on Earth from now-extinct primates. The only extant members of the human tribe, Hominini, belong to the species Homo sapiens. The exact nature of the evolutionary relationships between modern humans and their ancestors remains the subject of debate.
What Darwin Got Right (and Wrong) About Evolution | Britannica
Natural selection is the process that drives evolution, or change within a species. His classic theory was first published in On the Origin of Species in 1859, more than 150 years ago.
synthetic theory of evolution - Encyclopedia Britannica
…formulating and applying the modern synthetic theory of evolution to higher organisms. This theory distinguishes the basic processes of gene mutation and recombination, natural selection, changes in structure and number of chromosomes, and reproductive isolation.
evolution - Kids | Britannica Kids | Homework Help
The English scientist Charles Darwin was the founder of the modern theory of evolution. During a trip around the world, he collected fossils and observed the many variations among living things on a group of islands.