Differentiate an 'aggressive crowd' from an 'emergent crowd' based on their formation and primary behavioral characteristic.

An aggressive crowd differentiates from an emergent crowd primarily in its formation and dominant behavioral characteristic. An aggressive crowd typically forms when a group of individuals converges around a strong, shared negative emotion, such as anger, frustration, or hatred, often in response to a perceived injustice, threat, or common enemy. Its formation is driven by a collective grievance or a desire to confront a specific target. For example, a protest against a government policy that escalates into property destruction demonstrates the formation of an aggressive crowd. The primary behavioral characteristic of an aggressive crowd is its propensity for hostile, destructive, or violent action directed towards a specific object, person, or institution. Individuals within an aggressive crowd often experience deindividuation, which is a psychological state where a person's sense of individual identity and responsibility is diminished when they are part of a large group, leading to behaviors they might not exhibit alone. This type of crowd is highly emotional, less rational, and goal-oriented towards inflicting harm or damage. In contrast, an emergent crowd forms spontaneously and often without pre-planning, typically as individuals converge due to a sudden, shared focus of attention or an unexpected event. Its formation is not driven by a pre-existing collective emotion or a specific agenda, but rather by curiosity, observation, or immediate reaction to the evolving situation. For instance, people gathering around an unexpected street performance or a minor traffic accident represent an emergent crowd. The primary behavioral characteristic of an emergent crowd is its lack of a defined collective goal or inherent intent for aggression. Its members are initially unorganized, and their actions are often fluid, exploratory, or observational, rather than directed towards a specific target. While an emergent crowd can potentially evolve into other crowd types, including an aggressive crowd, depending on the dynamics and events that unfold, its defining initial characteristic is its spontaneous, undirected gathering and its uncommitted, often curious, initial behavior.