Natural and Artificial selection

  • Natural Selection

    • Process where organisms better adapted to their environment tend to survive and produce more offspring.

    • Key components include variation in traits, competition for resources, and differential reproduction.

    • It acts on existing variations within a population.

    • Example: The evolution of the peppered moth in response to industrial pollution in England.

  • Artificial Selection

    • Human-directed breeding of organisms for specific desired traits.

    • Involves choosing which individuals to reproduce based on their traits.

    • It can lead to rapid changes in a species that might not occur via natural selection.

    • Example: Selective breeding of dogs for size, coat type, and temperament.