Only mature bulls have large harems and breeding success peaks at about eight years of age.

During the breeding season males assemble large harems of females, which they guard aggressively against rivals.

Male gorillas, who run large harems, are twice as large as females.

These deer tend to form large herds, and during the breeding season males defend large harems of females.

Ming is known to keep a large harem of willing and unwilling women that serve his needs.

The Emperor possessed a large harem of concubines; sexual contact with a concubine by anyone other than the emperor was a severe offense.

He had wealth, vitality, spiritual knowledge, and a large harem, but no son.

In this "ancestral environment," large harems were rare; competition for women, though intense, was seldom epically intense.

Unfortunately, this peace was not to last, as the King soon started to conquer his neighboring kingdoms, and acquired much wealth, power, and a larger harem.

These documenters wrote that he kept a large harem of both men as well as women.