Kgnu - How On Earth

Greenback Cuttthroat Trout (starts at 6:06)  Colorado has always been a state of nature lovers, which is why, in the era of our great great grandfathers, citizens even designated an official state fish. It’s the Greenback Cutthroat Trout that thrived in the mountain streams above Boulder and Denver. Colorado wildlife officials had long assumed that Greenback Cuttthroat Trout still live in our mountain streams. The problem is, they were wrong. Through a complex set of Sherlock Holmes investigations begun in recent years, scientists at CU-Boulder figured out a “fish switch" decades ago, meant Greenback Cutthroat Trout were missing from our streams, and possibly extinct. Since then, we have much better news about the fish that “almost” got away.  In this feature, How on Earth’s Shelley Schlender, speaks with CU-Boulder biologist, Jessica Metcalf. (To access photos of greenback cutthroat trout go to http://photography.colorado.edu/res/sites/news/ and type “cutthroat” in the search box.) Migraines (starts at 14:2