Post-script: Natural Selection Does Not Only Act on “Individuals”

One common criticism against (multi) group-level selection (in favor of kin selection­ under inclusive fitness framework, which fits the individual selection, plus selfish “genes” narratives better) in explaining the evolution of altruism or other group-oriented traits is that a “group” is ill-defined, organisms seem to come and go and interact ephemerally. However, the concept of …

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