ON THE EVOLUTION OF COOPERATION (AN OCCASIONAL SERIES, PROBABLY): Paper from PLoS Comp Bio. Wherein cooperation is seen as more of an emergent property in a spatially limited environment for one-celled organisms, explaining why cooperation is so common in communities of teeny-tiny life. Implications for the evolution of we multicellular creatures? Maybe! Though I would embarrass myself by trying to speculate on this topic. (Note that our individual cells are also spatially constrained, genetically identical and cooperate just fine. Idle speculations are less embarrassing in parentheses.)