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The mechanism that Darwin proposed for evolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.
19 de oct. de 2023 · Darwin chose the name natural selection to contrast with “artificial selection,” or selective breeding that is controlled by humans. He pointed to the pastime of pigeon breeding, a popular hobby in his day, as an example of artificial selection.
Charles Darwin era un naturalista británico que propuso la teoría de la evolución biológica por selección natural. Darwin definió la evolución como "descendencia con modificación", la idea de que las especies cambian a lo largo del tiempo, dan origen a nuevas especies y comparten un ancestro común.
4 de jun. de 2019 · Natural selection is the mechanism that causes evolutionary change, helping organisms adapt to their environment. Charles Darwin and Alfred Wallace published simultaneous papers in the subject in 1858, and Darwin subsequently published many additional works on evolution and natural selection.
25 de sept. de 2019 · For Darwin, natural selection is a drawn-out, complex process involving multiple interconnected causes. Natural selection requires variation in a population of organisms. For the process to work, at least some of that variation must be heritable and passed on to organisms’ descendants in some way.
Natural selection is one of the basic mechanisms of evolution, along with mutation, migration, and genetic drift. Darwin’s grand idea of evolution by natural selection is relatively simple but often misunderstood. To see how it works, imagine a population of beetles: There is variation in traits.
17 de jun. de 2019 · This entry offers a broad historical review of the origin and development of Darwin’s theory of evolution by natural selection through the initial Darwinian phase of the “Darwinian Revolution” up to the publication of the Descent of Man in 1871.
