
Natural selection | Definition & Processes | Britannica
Oct 8, 2025 · In natural selection, those variations in the genotype (the entire complex of genes inherited from both parents) that increase an organism’s chances of survival and procreation …
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 …
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 …
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 …
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 …
What is natural selection? - Inheritance and genetics - BBC ...
Natural selection is a process by which a species changes over time in response to changes in the environment, or competition between organisms, in order for the species to survive. The …
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 …
Natural Selection - Definition and Examples | Biology Dictionary
Jan 15, 2021 · Natural selection is a pressure that causes groups of organisms to change over time. Animals inherit their genetics from their parents or ancestors, and the environment is …
2.10 Mechanisms of Evolution: Natural Selection
Natural selection produces changes in trait frequencies within populations (that is, evolution). Specifically, natural selection increases the frequency of beneficial (adaptive) gene variants.
Natural Selection: Charles Darwin & Alfred Russel Wallace
Many German biologists conceived of life evolving according to predetermined rules, in the same way an embryo develops in the womb. But in the mid-1800s, Darwin and the British biologist …