Yellowstone National Park is home to 4,179 documented species across 16 categories, including 5 threatened or endangered species and 2076 native species.
Biodiversity Overview
Species by Category
Native vs Non-Native Species
Abundance Distribution
| Abundance Level | Species Count | Percentage |
|---|---|---|
| Unknown | 1,817 | 43.5% |
| Uncommon | 696 | 16.7% |
| NA | 668 | 16% |
| Rare | 451 | 10.8% |
| Common | 383 | 9.2% |
| Abundant | 153 | 3.7% |
Threatened & Endangered Species
Endangered Species List
Yellowstone National Park contains 5 species with federal threatened or endangered status.
| Species | Category | Status | Nativeness |
|---|---|---|---|
| June Sucker | Fish | NA | Unknown |
| Rainbow trout | Fish | NA | Non-native |
| Canada lynx, Canadian Lynx, lynx | Mammal | NA | Native |
| Grizzly Bear | Mammal | NA | Native |
| scrub pine, white pine, whitebark pine | Vascular Plant | NA | Native |
Conservation Priorities
Of the 4,179 species in Yellowstone National Park, 5 require active conservation management. The most species-rich category is Insect with 1,764 documented species.
Frequently Asked Questions
How many species are in Yellowstone National Park?
Yellowstone National Park has 4,179 documented species across 16 categories. Insect is the largest category with 1,764 species.
Are there endangered species in Yellowstone National Park?
Yes, Yellowstone National Park is home to 5 threatened or endangered species requiring conservation management.
What is the most common wildlife category?
The most common category is Insect (1,764 species), followed by Vascular Plant (1,444).
Data Source: National Park Service (NPS) Biodiversity Database.
Last Updated: April 10, 2026