Nature Picture Library Canadian timber wolf / Northwestern wolf (Canis lupus occidentalis) pack moving through snow, Wood Buffalo National Park, Alberta, Canada. Taken on location for BBC Frozen Planet, March 2009. - Chadden Hunter
History of wolves in Yellowstone - Wikipedia
living systems - wood buffalo national park
Wood Buffalo National Park
WOOD BUFFALO NATIONAL PARK - YouTube
Northern Bison Sanctuary or Big Ranch? Wood Buffalo National Park | Environment & Society Portal