c) better adapted to its environment
Natural selection is a fundamental concept in evolutionary biology that explains how species adapt over time to their specific environments. This process occurs because individuals with traits that are advantageous for survival and reproduction in a particular environment tend to leave more offspring than those without such advantageous traits. Over generations, these beneficial traits become more common within the population, leading to a species that is better suited—or better adapted—to survive in its environment. While intelligence, size, or aggression may play roles in certain contexts, the primary outcome of natural selection is that a species becomes more adept at thriving in its unique surroundings.