Humpback chub — it’s a fish. Giggles seem to materialize with the mere utterance of the name. But it is really a fish and not some kind of human activity or function. The fish is native to Colorado ...

The plucky humpback chub has weathered dams and invasive species, but climate change and a dwindling river flow pose new threats. Humpback chubs swim over bluehead suckers beneath a waterfall in the ...