Wildlife

Yellowstone’s abundant and diverse wildlife are as famous as its geysers. There are nearly 300 species of birds, 16 species of fish, five species of amphibians, six species of reptiles, and 67 species of mammals—including seven native ungulate species and two bear species.

 
A wolf standing on a snowy bank near brown grass howls

Mammals

Home to the largest concentration of mammals in the lower 48 states.

A yellow-breasted bird with black markings calls out as it stands on a stick

Birds

About 150 species build their nests and fledge their young in Yellowstone.

An underwater view of a spotted fish with a red slash on its neck and side swims above pebbles

Fish and Aquatic Species

Native fish underpin natural food webs and have great local economic significance.

A frog with stretched chin in water

Amphibians

Amphibians are valuable indicators of stressors such as disease or climate change.

The head of a brown spotted snake among grass

Reptiles

There are six reptile species in Yellowstone.

 
 

Wild animals, especially females with young, are unpredictable and dangerous. Keep a safe distance from all wildlife. Each year a number of park visitors are injured by wildlife when approaching too closely. Approaching on foot within 100 yards (91 m) of bears or wolves, or within 25 yards (23 m) of other wildlife is prohibited. Please use roadside pullouts when viewing wildlife. Use binoculars or telephoto lenses for safe viewing and to avoid disturbing wildlife.

By being sensitive to its needs, you will see more of an animal’s natural behavior and activity. If you cause an animal to move, you are too close. It is illegal to willfully remain near or approach wildlife, including birds, within any distance that disturbs or displaces the animal.

 
Two people look through binoculars

Wildlife Watching

Bring some binoculars and enjoy animals from a safe distance.

Photo of a bull elk bugling

Nature

Discover the wonder of Yellowstone's geothermal features and our role in the conservation of wildlife.

Last updated: August 16, 2017

Contact the Park

Mailing Address:

P.O. Box 168
Yellowstone National Park, WY 82190-0168

Phone:

(307) 344-7381

Contact Us