29 NOV 2013 by ideonexus

 The Actuarial Math of Altruism

I have talked in elemental terms of suicidal genes for saving the lives of particular numbers of kin of exactly known relatedness. Obviously, in real life, animals cannot be expected to count exactly how many relatives they are saving, nor to perform Hamilton's calculations in their heads even if they had some way of knowing exactly who their brothers and cousins were. In real life, certain suicide and absolute 'saving' of life must be replaced by statistical risks of death, one's own and oth...
Folksonomies: evolution altruism hamilton
Folksonomies: evolution altruism hamilton
  1  notes

It's not just intra-species, but the closer the relative the more altruism. Also the potential to reproduce affects the relationship as well.