Original sentence: In a paper in Science in 2006 Nowak enunciated and unified the mathematical rules for the five understood bases of the evolution of cooperation (kin selection, direct reciprocity, indirect reciprocity, network reciprocity, and group selection) He suggests that evolution is constructive because of cooperation, which is the secret behind the open-endedness of the evolutionary process, and that we might add “natural cooperation” as a third fundamental principle of evolution beside mutation and natural selection
Edited sentence: In a stunning paper in Science in 2006 Nowak enunciated and unified the mathematical rules for the five understood bases of the evolution of cooperation (kin selection, direct reciprocity, indirect reciprocity, network reciprocity, and group selection) He suggests that evolution is constructive because of cooperation, which is the secret behind the open-endedness of the evolutionary process, and that we might add “natural cooperation” as a third fundamental principle of evolution beside mutation and natural selection