Er, Tiiba, that’s not correct. Systematic differential reproduction works just as well as death. The problem is that it’s nigh mathematically impossible for group selection to overcome a countervailing individual selection pressure, i.e., a 3% individual sacrifice that, when universal in a group, doubles the fitness of that group, will not survive under realistic conditions. Again, see the links.
Er, Tiiba, that’s not correct. Systematic differential reproduction works just as well as death. The problem is that it’s nigh mathematically impossible for group selection to overcome a countervailing individual selection pressure, i.e., a 3% individual sacrifice that, when universal in a group, doubles the fitness of that group, will not survive under realistic conditions. Again, see the links.