If having long fur helps a guinea pig survive what would you expect to see change in the population as it evolves?

If having long fur helps guinea pigs survive, we would expect to see an increase in the frequency of the long fur trait in the population over time. This could result from natural selection, where individuals with longer fur have better survival and reproductive success in their environment. As generations pass, more offspring would inherit the long fur trait, leading to a population that predominantly exhibits this characteristic. Ultimately, we may see a shift towards longer fur becoming the norm in the population.