Comparison between Natural Selection and Artificial Selection

 

Let me share with you a comparison between Natural Selection and Artificial Selection.

Aspect Natural Selection Artificial Selection
Introduction A Process through which organisms with advantageous traits for their environment are more likely to survive and reproduce, leading to the gradual change of populations over time. A Process through which humans selectively breed organisms for specific traits, leading to the propagation of desired characteristics over generations.
Selection by Environment factors such as predation, climate and resource availability. Humans breeders or farmers
Mechanism of Selection Differential survival and reproduction of individuals based on their heritable traits. Controlled breeding by humans to encourage the reproduction of organisms with specific traits.
Time Scale Takes place over long periods, resulting in gradual changes in populations. Can occur relatively rapidly, leading to significant changes in a few generations.
Variability Relies on the existing genetic variation within a population. Can result in significant changes in genetic composition
Goal Maximizes the adaptation of a population to its natural environment. Achieves specific human-desired traits in a population.
Examples ·        Peppered moths evolving coloration in response to industrial pollution.

·        Darwin’s finches adapting beak shapes based on food availability.

·        Domestication of plants and animals for agriculture.

·        Selective breeding of dogs for specific traits (size, coat color, etc.