Final answer:
Hyena packs are indeed dominated by females, which is a true statement embodying the matriarchal social structure of hyenas where females lead the clans and are often larger than males. This contrasts with the social structures of other species like lions, where dominant males vie for breeding rights.
Step-by-step explanation:
The statement that hyena packs are dominated by a female is true. In the animal kingdom, different species exhibit various mating and social behaviors. In the case of hyenas, their social structure is indeed matriarchal, with females typically being larger and more aggressive than males, and they lead the clans.
Comparatively, in species like lions and elephant seals, dominant males are often larger and compete with one another to mate with females. However, that's not the case with hyenas, where the females are in charge and the males are of lower status within the group dynamic.