/sci/ - Science & Math

>>9817442
Females selecting males based solely on aesthetic appearance is an extremely new event. What's more, prehistoric men were necessarily fit, to the extent that they needed to be able to operate as hunters in running several miles daily to track down prey. While an extremely muscular man will be able to easily --as a rule of thumb-- defeat another smaller human in battle, against other opponents in nature they are not of huge importance for two reasons: First, a large amount of muscle mass necessarily weakens stamina when running long distances. Secondly, a large amount of muscle mass will not make you any more capable to fight off animals that were already a threat to human in single combat, large cats and the like. Humans most effectively hunted in packs, and by exhausting animals with their heightened stamina.

Put simply, the notion of a chiseled physique being of utmost importance is a modern invention. If it continues to be selected for it will naturally become more common. That said, to assume that selection pressures will stay the same is naive.