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  1. Natural selection - Wikipedia

    It is a key law or mechanism of evolution which changes the heritable traits characteristic of a population or species over generations. Charles Darwin popularised the term "natural selection", contrasting it …

  2. Natural selection | Definition & Processes | Britannica

    Dec 5, 2025 · natural selection, process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype, or genetic constitution.

  3. What is natural selection? - Natural History Museum

    In natural selection, genetic mutations that are beneficial to an individual’s survival are passed on through reproduction. This results in a new generation of organisms that are more likely to survive to …

  4. Natural Selection - National Geographic Society

    May 7, 2025 · Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some …

  5. What Is Natural Selection and How Does It Work?

    Apr 21, 2025 · Natural selection is the fundamental engine of evolution, sculpting the living world with quiet, relentless power. It is not a force that demands attention, but one that works behind the …

  6. Natural Selection: Definition, Theory, Types & Examples

    Oct 29, 2024 · Natural selection is the process whereby organisms better adapted to their environment tend to survive, pass on the genes, and produce more offspring. It is a mechanism of evolution that …

  7. NATURAL SELECTION Definition & Meaning - Merriam-Webster

    Dec 22, 2025 · The meaning of NATURAL SELECTION is a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads …

  8. Natural Selection Explained: Definition, Examples, Practice ... - Pearson

    Natural selection is a fundamental mechanism of evolution, grounded in two key observations and two logical inferences. These principles, often referred to as Darwin's four postulates, are essential for …

  9. How Natural Selection Works - learn.genetics.utah.edu

    Through natural selection, many species of plants have developed the ability to make toxins that protect them from being eaten. And many species of caterpillars have developed the ability to break down …

  10. Evolution by Natural Selection | Biological Principles

    Evolution by natural selection occurs when certain genotypes produce more offspring than other genotypes in response to the environment. It is a non-random change in allele frequencies from one …