"It may be that moral values have evolved for their survival value, being instilled by evolution, and are thus objective, not being derived from human opinion or knowledge. In this case they would not be universal because they presumably wouldn’t have existed before they evolved, and they may change, perhaps drastically, in the future. On such a view the laws are not universally applicable, but they meet the criteria for objectivity."
Objective vs. Universal Moral Values and Duties
From an objective point of view there are objectively right and wrong ways for organisms with an evolved survival/self-preservation instinct to behave. The objectively right way to behave is to behave in such a way that it increases chances of survival and the objectively wrong way is to behave in such a way that it decreases chances of survival. Since we are social animals living in communities and living in communities increases our chances of survival the objectively right way for us to behave is to behave in such a way that we keep our communities healthy and well functioning. The objectively right way for us to behave is to help each other survive because that increases our chances of survival. We call behaving the right way behaving morally and behaving the wrong way behaving immorally.