A family of river otters (Lontra canadensis) foraging in the Yellowstone River in Hayden Valley in Yellowstone National Park, Wyoming

2 animal families animal family animal themes animal theme animals dams dam families family forage foraging hayden valley habitat horizontals horizontal in the wild lontra canadensis landscape looking for food mammal mammals national parks national park no one no people no person no body no one nobody nps np otter otters pair river otter river otters related relations relationship relationships river rivers two animals two water wild animal wild animals wildlife wild yellowstone national park yellowstone river yellowstone