U.S. Fish & Wildlife Service

Endangered Species

Nothing is more priceless and more worthy of preservation than the rich array of animal life with which our country has been blessed.  It is a many faceted treasure…and it forms a vital part of the heritage we all share as Americans.
President Richard Nixon – Statement upon signing the Endangered Species Act, 1973

Endangered and Threatened Species of Alaska

Alleutian shield fern

Alleutian shield fern

eskimo curlew

Eskimo Curlew

northern sea otter

Northern sea otter

polar bear

polar bear

Steller's eider. USFWS.

Steller's eider

short-tailed albatross

short-tailed albatross

spectacled eider

spectacled eider

wood bison

wood bison

Endangered Species Program

Preventing Extinction. Achieving Recovery

The Endangered Species Act (ESA) provides a critical safety net for America’s native fish, wildlife and plants. This landmark conservation law has prevented the extinction of hundreds of imperiled species and helped many others recover. The U.S. Fish and Wildlife Service (USFWS), along with our sister agency, the National Marine Fisheries Service (NMFS), is responsible for implementing the ESA nationally. We continuously strive towards making implementation of the ESA less complex, less contentious, and more effective. Ultimately we want to work with you and our partners to accelerate recovery of threatened and endangered species, and make it easier for people to coexist with listed species.

Learn More About The Endangered Species Program


Male Stellers eider
Male Stellers eider. Photo Credit: Laura Whitehouse/USFWS

Success Stories

“Sea Otter” and the Geese

Second Short-Tailed Albatross Hatches at Midway Atoll National Wildlife Refuge

Other Species of Significance


Listed species only in Canada

Previous Candidate species

Other species previously considered

For a list of listed and candidate species under the jurisdiction of both FWS and NMFS, click here.

Additional links to species in Alaska:

Department of Fish and Game  
NOAA Fisheries

ESA De-MYTH-ified

What are the facts when it comes to the Endangered Species Act? Dispel the myths surrounding this important piece of conservation law through ESA De-MYTH-ified!

Get the Facts


Confused? Brush up on your ESA lingo by visiting our glossary page!

Learn More