Positive selection

Positive selection is a natural process where certain genetic traits become more common in a population because they offer an advantage for survival or reproduction. If a gene mutation improves an organism’s ability to find food, resist disease, or reproduce successfully, individuals with that trait are more likely to pass it on to their offspring. Over time, this leads to the beneficial trait becoming widespread within the population. In essence, positive selection favors advantageous traits, helping species adapt to their environment and evolve positively.