Mitä ilmeisimmin aivojemme koon tärkein valintapaine olivat sosiaalisten ongelmien ratkaisu, ko-operaatio ja ryhmätyö, asiat, joista on kiistattomasti hyötyä. Tutkijat ovat mallintaneet tätä keinotekoisilla organismeilla ja todenneet mallin ennustavan suurempia aivoja ja älykkäämpää käytöstä, kun sosiaalisuus kehittyy:
http://phys.org/news/2012-04-scientists-social-interaction-teamwork-human.html
"By allowing the brains of these digital organisms to evolve freely in their model the researchers were able to show that the transition to cooperative society leads to the strongest selection for bigger brains. Bigger brains essentially did better as cooperation increased.
The social strategies that emerge spontaneously in these bigger, more intelligent brains show complex memory and decision making. Behaviours like forgiveness, patience, deceit and Machiavellian trickery all evolve within the game as individuals try to adapt to their social environment.
"The strongest selection for larger, more intelligent brains, occurred when the social groups were first beginning to start cooperating, which then kicked off an evolutionary Machiavellian arms race of one individual trying to outsmart the other by investing in a larger brain. Our digital organisms typically start to evolve more complex 'brains' when their societies first begin to develop cooperation." explained Dr Andrew Jackson."
Kreationisteille rautalangasta: tässä on aivojen koon ja älykkyyden tärkein valintapaine, johon vastaaminen oli mahdollista aivoja kasvattavien mutaatioiden ja lihansyönnistä saatavan energian ansiosta, ensin raa'an lihan ja myöhemmin kypsennetyn lihan.
http://phys.org/news/2012-04-scientists-social-interaction-teamwork-human.html
"By allowing the brains of these digital organisms to evolve freely in their model the researchers were able to show that the transition to cooperative society leads to the strongest selection for bigger brains. Bigger brains essentially did better as cooperation increased.
The social strategies that emerge spontaneously in these bigger, more intelligent brains show complex memory and decision making. Behaviours like forgiveness, patience, deceit and Machiavellian trickery all evolve within the game as individuals try to adapt to their social environment.
"The strongest selection for larger, more intelligent brains, occurred when the social groups were first beginning to start cooperating, which then kicked off an evolutionary Machiavellian arms race of one individual trying to outsmart the other by investing in a larger brain. Our digital organisms typically start to evolve more complex 'brains' when their societies first begin to develop cooperation." explained Dr Andrew Jackson."
Kreationisteille rautalangasta: tässä on aivojen koon ja älykkyyden tärkein valintapaine, johon vastaaminen oli mahdollista aivoja kasvattavien mutaatioiden ja lihansyönnistä saatavan energian ansiosta, ensin raa'an lihan ja myöhemmin kypsennetyn lihan.
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