Excerpt:
The scientists, Seth Meek and Charles Gilbert, had discovered a new species of fish. They named it Etheostoma nianguae. Today we know it as the Niangua darter, a now federally threatened fish found nowhere else but in streams in the Osage River basin. The pair's scientific expedition across the Ozarks that summer and other work vastly expanded our knowledge of the richly varied aquatic life in Missouri's streams.