Despite its gruesome moniker, the Colorado River cutthroat trout has long been revered as one of North America's most beautiful native fish — and it's now one of the country's most imperiled. Named ...

The Center first petitioned to list the Rio Grande cutthroat trout under the Endangered Species Act in 1998. The Service responded that the trout was unlikely to become endangered and decided instead ...

"Rising from the Shadows" uses breathtaking underwater imagery to reveal the dramatic world of the Cutthroat Trout as they encounter ... hybridization with other species. Viewers will meet the ...

Of the four major trout species in the United States—rainbow, brook, cutthroat and brown—only the brown trout was introduced from abroad, but any of the four might be considered invasive when ...