These Animals Have Some Of The Most Surprising Mating And ...

(Why Some Animals Mate Themselves to Death)

Alternatively in monogamous animals, such as the albatross, a breeding pair mates for life. These are considered conventional sex roles.

Picture of a male emu standing protectively over its last surviving chick.
A male emu father staying close to protect his new chick from predators in New South Wales, Australia. Males of these species are responsible for care of their young offspring.Photograph by Jami Tarris, Getty Images

However, breeding relationships like matriarchies or female-led harems that fall outside traditional polygyny or monogamy are deemed role reversals.

Role reversals in the sea, sky, and underground highlight the diversity of courtship in the animal kingdom—and the wonderful variety of life on Earth.

 Mammal queens 

In underground colonies of naked mole-rats, a powerful queen reigns over hundreds of blind, hairless subjects. As in bee or ant colonies, naked mole-rat queens are the only females who mate and give birth. She’s joined by one—or occasionally a few—breeding males, who she has granted the right to sire the next generation. The rest of the colony is tasked with baby care, in addition to expanding burrows with their robust teeth and feeding the queen. Biologists call this “extreme cooperative breeding.”

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