Unit of selection (in defense of "group" selection)

[Laurence Fiddick]

david sloan wilson and elliot sober have an article on group selection that
i believe is currently in press to be published in behavioral and brain 
sciences. they are strongly in favor of a group selectionists approach and
basically throw down the gauntlet at the gene selectionists. it'll be 
interesting to read the commentary when this one gets out.