Human Evolution...

Now that we have a thought based upon research (see a previous post) about human cranial size relating to the climate. And cranial size has been associated in various studies with greater intelligence. Brain size follows along. Moving into the nether regions of the world in a colder climate will lead to a need to depend on others in harsher landscapes. Can we assume that human evolution is greatly influenced by the symbiotic relationship of a pair of people raising a child? A recent discussion with a friend now makes me believe that the emotion we term love is a by product of the need to raise and develop a human child. Social ties expand and deepen as two care for each other and the child. The child takes longer and longer to grow and learn. The care between two people gets greater. A pretty long circle. It seems chilren are staying with their parents even longer now a days. Human life is getting longer. Generations are wider. Mothers having children later. Staying in the work force longer. Children going through education for longer periods of time. Children living at home longer. Children (young adults) moving out into a world of debt.

There is a subtle shift. I guess it is continual and the observation of it is of no real significance. I leads to me wonder though...will the societies with a greater social bond and a higher degree of altruism grow larger? The Greek city states did well because of their ability to bond together when a powerful neighbor attached. Economic Socialism has yet to truly take form in the world (as neither has Capitalism). Will China rule the world because it has the largest families? Darwinism upon Socialism upon layers upon layers.