Definition of natural selection in English:

natural selection

noun

Biology
  • The process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution.

    Compare with survival of the fittest (see survival)
    • ‘As in Darwin's theory of natural selection, a species must adjust to survive.’
    • ‘The theory of evolution by natural selection is the unifying theory of biology.’
    • ‘In other words, these capacities are the outcome of evolution by natural selection.’
    • ‘In other words, Darwinian processes of natural selection are now at play in the science media.’
    • ‘By a process of natural selection the better adapted individuals and species survived while the others died out.’
    • ‘These traits and differences are said to have evolved in our ancestors via natural selection.’
    • ‘They argue that advances in molecular biology suggest that natural selection is wrong.’
    • ‘There are many excellent popular science books on the subject of evolution and natural selection.’
    • ‘You would expect natural selection to remove the unattractive variants.’
    • ‘So, in terms of Biology, natural selection is based on genetic information.’
    • ‘Charles Darwin's ideas on evolution through natural selection are the basis for these arguments.’
    • ‘In fact, there is no real scientific evidence to refute natural selection as a valid theory.’
    • ‘He says that adaptive fitness, produced by natural selection, is not necessarily related to survival value.’
    • ‘Surely there's not enough intra-species competition for natural selection.’
    • ‘So genetic stock changes through natural selection rather than learning.’
    • ‘This helps the market to evolve to become smarter over time through natural selection.’
    • ‘Studying the Galapagos islands helped to inspire Charles Darwin's theory of natural selection.’
    • ‘The researchers do not know why natural selection favored human ancestors who could run long distances.’
    darwinism, natural selection
    View synonyms

Pronunciation

natural selection

/ˈnaCH(ə)rəl səˈlekSHən/