Understanding Sexual Selection in Evolutionary Biology

In a complex model of evolutionary dynamics, researchers investigate the role of sexual selection and its influence on the development of elaborate secondary sexual characteristics, such as the peacock's tail. This phenomenon, explained by Darwin's sexual selection theory, highlights the existence of traits that may increase reproductive success despite posing risks to survival. Peafowl exhibit striking plumage that typically attracts mates.

Recent studies have suggested that these traits, while initially appearing counterintuitive due to predation risks, signify the health and genetic fitness of the males. The sexual selection pressure forces males to compete, sometimes resulting in a trade-off between survival and attractiveness.

Given this context, which of the following statements most accurately captures the concept of sexual selection in shaping such traits over generations?