Answer: When Nature selects a variation, that means the trait gets passed along from generation to generation.
Explanation: The trait might not be beneficial to the species, but that won't stop it from passing it down from parent to offspring. We don't know if the variation will bring a new species, or cause the population to shrink. We don't even know if it will help the prey escape predators. But we do know that all traits are passed along from generation to generation.
