Photo: A mountain lion watches its territory from a rock

Mountain lions do not like to share their territory and are constantly on the lookout for invaders.

Photograph by Jim & Jamie Dutcher

Map

Map: Mountain lion range

Mountain Lion Range

Audio

Fast Facts

Type:
Mammal
Diet:
Carnivore
Size:
Head and body, 3.25 to 5.25 ft (1 to 1.6 m); Tail, 23.5 to 33.5 in (60 to 85 cm)
Weight:
136 lbs (62 kg)
Protection status:
Endangered
Size relative to a 6-ft (2-m) man:
Illustration: Mountain lion compared with adult man

This powerful predator roams the Americas, where it is also known as a puma, cougar, and catamount. This big cat of many names is also found in many habitats, from Florida swamps to Canadian forests.

Mountain lions like to prey on deer, though they also eat smaller animals such as coyotes, porcupines, and raccoons. They usually hunt at night or during the gloaming hours of dawn and dusk. These cats employ a blend of stealth and power, stalking their prey until an opportunity arrives to pounce, then going for the back of the neck with a fatal bite. They will hide large carcasses and feed on them for several days.

Mountain lions once roamed nearly all of the United States. They were prized by hunters and despised by farmers and ranchers who suffered livestock losses at their hands. Subsequently, by the dawn of the 20th century, mountain lions were eliminated from nearly all of their range in the Midwest and Eastern U.S.—though the endangered Florida panther survives.

Today, whitetail deer populations have rebounded over much of the mountain lion's former range and a few animals have appeared in more eastern states such as Missouri and Arkansas. Some biologists believe that these big cats could eventually recolonize much of their Midwest and Eastern range—if humans allow them to do so. In most western U.S. states and Canadian provinces, populations are considered sustainable enough to allow managed sport hunting.

Mountain lions require a lot of room—only a few cats can survive in a 30-square-mile (78-square-kilometer) range. They are solitary and shy animals, seldom seen by humans. While they do occasionally attack people—usually children or solitary adults—statistics show that, on average, there are only four attacks and one human fatality each year in all of the U.S. and Canada.

Big Cats Features

  • lion-photos-blog.jpg

    Lion Numbers Plunge

    The king of the African savannah is in serious trouble because of massive conversion of the continent’s remaining wilderness to human land-use, according to a detailed study.

  • Photo: Captive asiatic cheetah

    Finding the Last Cheetahs of Iran

    Intensely shy and hovering on the edge of extinction, Iranian cheetahs are essentially impossible to see.

  • A snow leopard perched on rocks in Pakistan.

    Some Snow Leopards Wild No More?

    Thinking of snow leopards as domesticated—and thus dependent on people for food—may help save the dwindling species, one conservationist claims.

  • A running cheetah.

    Cheetah Breaks Speed Record

    Beating Usain Bolt's best, Sarah the "polka-dotted missile" clocked the world's fastest recorded time for a 100-meter run.

Learn More About Big Cats »

Newsletters

Mobile

  1. 20304.jpg

    Mountain Lion Ringtone

    Enjoy sounds of the wild with a mountain lion ringtone.

From the Magazine

  1. Photo: Two adult preen, Ireland

    Gannets Pictures

    Champion divers but clumsy landers, doting parents but hostile neighbors—northern gannets abound in contradictions.

  2. Photo: Silent Ural owl

    Estonia's Ural Owls

    Photographer Sven Začek provides an intimate view of this large raptor.