Natural selection is the process by which organisms better adapted to their environment tend to survive and reproduce. This principle, first proposed by Charles Darwin, explains how species evolve over time. Organisms with traits that improve their chances of survival are more likely to pass those traits to their offspring, leading to evolutionary changes in populations.
Natural selection operates on variations within a species, which can be influenced by genetic mutations. Over time, these favorable traits become more common, while less advantageous traits may disappear. This process is a driving force behind the diversity of life on Earth and shapes the development of species across generations.