Humpback chubs are the least mobile of Colorado’s four federally protected native fish. They live out their entire lives on river stretches as short as 1.5 miles. Dams hit humpbacks especially hard.

An endangered fish found in the Colorado River basin is on the upswing, federal officials said Tuesday, Jan. 21, 2020, as they proposed reclassifying the humpback chub as threatened.

Although biologically a minnow, the humpback chub can reach 20 inches and 2.5 pounds. Silver-sided and white-bellied, with a greenish streak on its back and a distinctive lump behind its head, it ...

The humpback chub, a Colorado River fish whose survival was imperiled by the construction of massive dams and the introduction of nonnative predators, is officially endangered no more. The U.S ...

The U.S. Fish and Wildlife Service on Friday said it has reclassified the humpback chub from endangered to threatened under the Endangered Species Act, thanks to significant progress made by ...

Charismatic is hardly the best word to describe the humpback chub, a fish with a frowny eel face jammed onto a sportfish body in a way that suggests evolution has a sense of humor.

The humpback chub is a silvery green fish with a Quasimodo hump only found in a few deep-water spots in the Colorado River — and in the ballpark in downtown Grand Junction.