Small and scrappy can win, at least in the case of some monkey groups, according to research. In territorial disputes, smaller groups can win as larger, more powerful groups avoid aggressive attacks.

The reason? Some monkeys simply refuse to participate in the disputes, according to a new report published online Wednesday in the Proceedings of the National Academy of Science.

The research focused on wild white-faced capuchin monkey groups at a research station in Panama. Researchers found that monkeys at the center of the territory responded more aggressively to challenges, unlike at the borders where monkeys fled attacks.

These behavior patterns even the balance of power among groups and create a 'home-field advantage', which may explain how large and small groups are able to coexist, stated a press release.