Do female hyenas dominate the males?

Yes. Hyena communities, called clans, are headed by a female called the matriarch. All the other females in the clan have a distinct role in a hierarchy; just as there is only one matriarch, there is only one female hyena below the matriarch and above all other, and below her is a female hyena subordinate to the hyena beneath the matriarch and above all the others, and so on, until the lowest ranking female is reached-who is still superior to every male in the clan.

The reasons for female dominance are not surprising: female hyenas are larger, stronger, and more aggressive than males.