Natural Selection Theory

Natural selection is a process where organisms with traits better suited to their environment are more likely to survive and reproduce. Over generations, these advantageous traits become more common in a population. Variations occur naturally due to genetic differences. When environmental conditions favor certain traits—like speed, camouflage, or resistance—those traits increase in frequency. This process drives the evolution of species, shaping them over time to better fit their habitats. In essence, natural selection filters traits through survival and reproduction, leading to gradual biological change across generations.