I'm afraid I have to disagree with your point. From an evolutionary perspective, “vessels to propagate our genes” carries a lot of baggage with it, including t

I'm afraid I have to disagree with your point. From an evolutionary perspective, “vessels to propagate our genes” carries a lot of baggage with it, including the need to be healthy enough to take a baby to term, care for yourself/other family/group members, and raise it until it reaches sexual maturity, all of which require efficient energy gathering, storage, and usage strategies.