Learn more about a specific fish or wildlife species in Washington.
Species marked with an "AIS" badge are aquatic invasive species. For more information about these environmentally and economically destructive species, visit the Aquatic invasive species page.
| Species | Category |
|---|---|
| River otter (Lontra canadensis) | Mammals |
| Rocky Mountain elk (Cervus elaphus nelsoni) | Mammals |
| Rocky mountain mule deer (Odocoileus hemionus hemionus) | Mammals |
| Roosevelt elk (Cervus elaphus roosevelti) | Mammals |
| Roy Prairie pocket gopher - Mazama species (Thomomys mazama glacialis) | Mammals |
| Sagebrush vole (Lemmiscus curtatus) | Mammals |
| Sea otter (Enhydra lutris kenyoni) | Mammals |
| Sei whale (Balaenoptera borealis) | Mammals |
| Shaw Island Townsend's vole (Microtus townsendii pugeti) | Mammals |
| Shelton pocket gopher - Mazama species (Thomomys mazama couchi) | Mammals |
| Shrew-mole (Neurotrichus gibbsii) | Mammals |
| Silver-haired bat (Lasionycteris noctivagans) | Mammals |
| Sperm whale (Physeter macrocephalus) | Mammals |
| Spotted bat (Euderma maculatum) | Mammals |
| Spotted skunk (Spilogale putorius) | Mammals |
| Steller sea lion (Eumetopias jubatus) | Mammals |
| Striped skunk (Mephitis mephitis) | Mammals |
| Tenino pocket gopher - Mazama species (Thomomys mazama tumuli) | Mammals |
| Townsend mole (Scapanus townsendii) | Mammals |
| Townsend’s big-eared bat (Corynorhinus townsendii) | Mammals |
| Townsend’s ground squirrel (Urocitellus townsendii townsendii) | Mammals |
| Washington ground squirrel (Urocitellus washingtoni) | Mammals |
| Western gray squirrel (Sciurus griseus) | Mammals |
| Western Long-eared bat (Myotis evotis) | Mammals |
| Western small-footed myotis (bat) (Myotis ciliolabrum) | Mammals |