Within a chimp community, a male hierarchy, ordered more or less in linear fashion, establishes social standing, with one male at the top or "alpha" position. All adult males dominate all females, although females have their own hierarchy, albeit much less straightforward.About ChimpanzeesOther factors that determine dominance and social status are physical fitness, aggressiveness, skill at fighting, ability to form coalitions, intelligence, and other personality traits. Status is either maintained or changed through communication and social interactions, such as physical competition and grooming.
Humans aren't that different. Many of the factors, such as grooming and personality traits, apply to both humans and chimps.