View synonyms for natural selection

natural selection

[ nach-er-uhl si-lek-shuhn, nach-ruhl ]

Phonetic (Standard)IPA

noun

the process by which forms of life having traits that better enable them to adapt to specific environmental pressures, as predators, changes in climate, or competition for food or mates, will tend to survive and reproduce in greater numbers than others of their kind, thus ensuring the perpetuation of those favorable traits in succeeding generations. Compare survival of the fittest.

natural selection

a process resulting in the survival of those individuals from a population of animals or plants that are best adapted to the prevailing environmental conditions. The survivors tend to produce more offspring than those less well adapted, so that the characteristics of the population change over time, thus accounting for the process of evolution

natural selection

The process by which organisms that are better suited to their environment than others produce more offspring. As a result of natural selection, the proportion of organisms in a species with characteristics that are adaptive to a given environment increases with each generation. Therefore, natural selection modifies the originally random variation of genetic traits in a species so that alleles that are beneficial for survival predominate, while alleles that are not beneficial decrease. Originally proposed by Charles Darwin, natural selection forms the basis of the process of evolution.
See Notes at adaptationCompare artificial selection

natural selection

A process fundamental to evolution as described by Charles Darwin . By natural selection, any characteristic of an individual that allows it to survive to produce more offspring will eventually appear in every individual of the species , simply because those members will have more offspring.

The expression survival of the fittest was used to describe this process in the nineteenth century but is not favored by modern scientists.

First recorded in 1855–60

Darwin was a British Scientist who developed the theory of evolution and natural selection.

His observations of the many varieties of Finch birds in the Galapagos Island led him to solidify his theory of natural selection.

This crucial point—the third and most crucial condition for natural selection—is absent from the paper.

I suppose the main argument goes like this: We are no longer subject to Darwinian natural selection.

We have taken the reigns of natural selection to become the chief agents of the evolutionary process.

It was decided to let the law of natural selection operate freely.

By a system of evolution and working of the law of natural selection, four families use the house at the same time.

Natural selection plus geographical and ecological isolation has undoubtedly been operative in speciation and in subspeciation.

Dr. Roth has conjectured that phratries were introduced "by a process of natural selection" to regulate the food supply.

Natural selection acts by suppressing, or developing, structurally distributed colour.

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