The selfish gene could try not to waste resources raising children that are not possessing the gene. That works even better.
http://en.wikipedia.org/wiki/Green-beard_effect
I’m not sure Green-beard effects can actually occur in practice since a mutation that kept the Green beard while destroying the pathway for self-altruism would out-compete the original Green beards.
http://en.wikipedia.org/wiki/Green-beard_effect
I’m not sure Green-beard effects can actually occur in practice since a mutation that kept the Green beard while destroying the pathway for self-altruism would out-compete the original Green beards.