On the importance of defendable resources for social evolution: Applying new techniques to a long‐standing question

Cooperative behaviour often co‐occurs with the defence of key resources, typically in the form of a breeding site or territory communally exploited by a group of cooperating individuals. Nevertheless, not all animals that defend resources evolve advanced forms of cooperation and sociality—many non‐cooperative species occupy resources that do not differ in obvious ways from those inhabited by cooperative species. A key question is thus whether...