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Why do male lions leave their pride?

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A male lion — lion The distinguishing feature of a male lion (*Panthera leo*) is its mane, which makes the animal look larger and may serve to intimidate rivals or impress prospective mates.

Male lions are typically expelled from their pride at approximately three years of age. This departure is a natural part of their life cycle, transitioning them into a nomadic existence.1

Once they leave, these males remain nomads until they are mature enough—typically after age five—to attempt to take over a different pride. This period of nomadism is highly competitive, as mating opportunities for lone males are rare. To increase their chances of successfully seizing and maintaining control of a new pride, males often form cooperative partnerships or coalitions.1

The competition for pride tenure is fierce because the resident males are responsible for defending the territory and mating with the pride's females. When a new coalition of males successfully takes over a pride, they often engage in infanticide, killing the young cubs sired by their predecessors to bring the females back into a reproductive state more quickly.1