Yellowstone National Park: This video covers both native and invasive species of trout that are found in the waters at Yellowstone. The physical characteristics of each of the five species are covered in detail. Cutthroat trout are native and must be released if caught!

What's on Your Line? - Bonus Feature

Invasive species found in Everglades National Park, Hawai‘i Volcanoes National Park, and Yellowstone National Park are discussed. Efforts to remove the invasive species are included as well.

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What's on Your Line? - Bonus Feature

What's on Your Line? - Bonus Feature

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