How many lions are in Yellowstone?

There are an estimated 34 to 42 mountain lions that reside year-round in Yellowstone. But for wildlife watchers in the park they remain a rare and special sight. The lions tend to move across rugged and difficult-to-access terrain, and are adept at hiding.



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The current population of lions in Yellowstone is estimated to be 18-24 animals and is thought to be increasing. Mountain lions live an average lifespan of about 12 years in the wild. Mountain lions were significantly reduced by predator control measures during the early 20th century.

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The wolverine is probably the rarest animal seen in Yellowstone. The US Fish and Wildlife Service: Wolverines are the largest land-dwelling member of the mustelid family and are extremely rare in the continental United States.

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The cougar (Puma concolor), also known as mountain lion, is the one of the largest cats in North America and a top predator native to Greater Yellowstone.

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The Pronghorn is the fastest North American land animal, capable of reaching speeds of up to 60 miles per hour. The pronghorn's speed is its main defense against predators. The newborns, for the first few days of their lives, are vulnerable to coyotes.

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About 800 moose inhabit the southern part of Yellowstone, Grand Teton National Park and surrounding national forests. This largest member of the deer family loves cold weather and frequents marshy meadows and edges of lakes and streams.

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Big Bird the Sandhill Crane at Yellowstone Wildlife Sanctuary.

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Elk are the most abundant large mammal found in Yellowstone and are an important species within the Greater Yellowstone Ecosystem. Yellowstone provides summer range for an estimated 10,000–20,000 elk (Cervus canadensis) from six to seven herds, most of which winter at lower elevations outside the park.

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As of January 2023, there are at least 108 wolves in the park. Ten packs were noted. Wolves in Yellowstone sit at the core of a larger population connected throughout the Greater Yellowstone Ecosystem. In general, wolf numbers have fluctuated between 83 and 123 wolves since 2009.

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Predators of the bobcat include mountain lions, coyotes, foxes, owls, wolves, and humans.

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