Yellowstone National Park: The history of human-bear interactions involving food at Yellowstone are covered in this video. The reasons why visitors are currently discouraged from feeding bears at the park are discussed as well.

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!

Yellowstone National Park: Efforts to eradicate three invasive species currently inhabiting Yellowstone are discussed. The species are lake trout, whirling disease parasite, and New Zealand mud snails.