Most animal societies are run by males, but for some, it's the females that rule.
These matriarchal groups are usually led by the oldest and wisest individuals. Female leadership has mostly evolved in mammals, which tend to live longer and have fewer offspring than other types of animals. Animals with female leaders are those where females have a disproportionate influence on the collective behavior of group members, according to a 2020 study in the journal The Leadership Quarterly.
