AltruismHepatolenticular DegenerationGame TheoryCation Transport ProteinsCopperBiological EvolutionCooperative BehaviorHelping BehaviorMetallochaperonesMenkes Kinky Hair SyndromeCommodificationGroup StructureAdenosine TriphosphatasesEgoEthicsRats, Inbred LECCompetitive BehaviorSocial BehaviorSelection, GeneticCeruloplasminGames, ExperimentalVolunteersSpores, ProtozoanMotivation