One of the rarest fish in the country is slowly swimming back from the brink of extinction after being spotted in a California river for the first time in 10 years. The Southern California steelhead ...

Devils Hole pupfish are pictured. The rare and endangered fish live in a protected 500-foot limestone cavern in Death Valley National Park. Olin Feuerbacher National Park Service A Death Valley ...

America's national parks protect some of the most well-preserved wilderness and ecosystems in the world. As a result, many national parks are also excellent destinations for wildlife watching. Vast ...