Breeding season - Mountain lions are polygamous. The estrous cycle lasts approximately 23 days, with estrus usually lasting 8 days. The breeding season of Florida panthers starts in October and continues through April, with the majority of conceptions occurring from November to March. Growth of young - Kittens begin nursing within minutes after birth and gain weight rapidly.
Males usually grow faster than females.
At 2 weeks of age, eyes and ears are open, and kittens are able to walk. In 10 to 20 days kittens may weigh over 2 pounds. The kittens are weaned when they are 2 to 3 months old. Longevity - The maximum longevity of wild mountain lions is unknown. Mountain lion habitat is essentially the same as that of their primary prey.