Male Barbary macaques interfere in conflicts and form coalitions with other males, usually with related males rather than with unrelated males, suggesting that they do so in order to indirectly increase their own fitness.
Male Barbary macaques interfere in conflicts and form coalitions with other males. This is usually with related males rather than with unrelated males. They do so. This is to indirectly increase their own fitness. Unrelated males are suggesting this.