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Natural Selection

Definition

Natural selection is the process by which certain traits become more or less common in a population over generations based on their ability to survive and reproduce. Organisms with advantageous traits are more likely to pass those traits onto their offspring, leading to the gradual adaptation of a species to its environment.

Analogy

Think of natural selection like a talent show where contestants with the best skills get chosen for the next round. In this case, organisms with beneficial traits are like talented contestants who make it through each round, while those without advantageous traits get eliminated.

Related terms

Charles Darwin: An influential scientist who developed the concept of natural selection and published his ideas in his book 'On the Origin of Species.' His work revolutionized our understanding of evolution.

Adaptation: The process by which organisms change over time in response to their environment. Adaptations can be physical, behavioral, or physiological changes that help an organism better survive and reproduce.

Survival of the Fittest: A term coined by Herbert Spencer, which describes how individuals with favorable traits are more likely to survive and pass on their genes. It does not necessarily mean physical strength but refers to overall reproductive success.