Yellowstone National Park Wildlife / Animals, Pictures, Viewing & Information



Yellowstone National Park has the largest concentration of wildlife in the lower 48 states.

What species of Wildlife can I see in the park?

Below is just a sampling of the animals that you can encounter on your visit to Yellowstone National Park. Habitat preferences and seasonal cycles of movement determine where a particular animal may be at a particular time. Early morning and evening hours are when animals tend to be feeding and thus are more easily seen. However, remember that the numbers and variety of Yellowstone animals you see are largely a matter of luck and coincidence.


Less than 1,000 pronghorn antelope currently migrate through the Yellowstone area.


Everyone comes to Yellowstone to see a bear. Keep your eyes open, there are still here, both grizzly and black bear.

Bighorn Sheep

A few hundred of these call Yellowstone National Park and the surrounding area their home.


Yellowstone National Park is the only place in the lower 48 states to have a continuously free-ranging bison population since prehistoric times.


No research has been conducted in Yellowstone to determine the numbers or distribution of this elusive animal that usually is solitary, nocturnal, and widely scattered over its range.


Easily the largest population of large mammals in Yellowstone Park, over 15,000 elk call the area their home.


Moose are the largest member of the deer family and can be found in the marshy areas of the park including lake shores and along rivers.

Mountain Lions

The mountain lion, also called the cougar, is the largest member of the cat family living in Yellowstone.

Mule Deer

Mule deer are so-named for named for their large mule-like ears.


There are currently 13 wolf packs making Yellowstone National Park their home. Wolves are some of the most intelligent mammals on the planet. Treat them with the utmost respect.

Interesting Facts

The following are the National Park Service Statistics for the wildlife of Yellowstone:

  • 61 different mammals
  • Along with black bears, over 500 grizzlies live in the greater Yellowstone ecosystem
  • Gray wolves were restored in 1995; more than 370 live in the greater Yellowstone ecosystem.
  • Wolverine and Lynx live in the park and are some of the rarest mammals to spot.
  • Seven native species of hooved animals—elk, mule deer, bison, moose, bighorn sheep, pronghorn and white-tailed deer—live in Yellowstone National Park, here, including one of the largest herds of elk in the United States.
  • Non-native mountain goats have colonized the northwestern and northeastern portions of the park.

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