For more than 40 years, the Endangered Species Act (ESA) has helped prevent the extinction of our national treasures. Learn about the species of the West that the ESA has saved from the threat of extinction and put back on the road to recovery. Included in this factsheet: Aleutian Canada goose, Columbia whitetail deer, grizzly bear, gray wolf of the northern Rockies, and southern sea otter.   

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Grizzly bear sow
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Sea otter
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Gray Wolf in Yellowstone
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