The process by which wild plants and animals are genetically modified over time by humans to become more suited to human needs and controlled environments. This selective breeding leads to changes in the physical and behavioral traits of the species, making them dependent on human intervention for survival and reproduction. An example is the cultivation of wheat, which has been selectively bred for larger grain size and easier harvesting compared to its wild ancestors.
This phenomenon is a foundational element of human civilization, enabling the development of settled agriculture and pastoralism. Its significance lies in the increased food security and resource availability that allowed for population growth, specialization of labor, and the emergence of complex societies. Historically, it represents a major turning point in the relationship between humans and the environment, transforming humans from hunter-gatherers to managers of ecosystems.