Some years ago I watched a documentary which I cannot find again. It was possibly called 'Giants of Denali' or similar, and focused on big mammals of Alaska. It seemed to include a montage of wildlife scenes filmed by tourists. It included a scene of bull Elk fighting between waiting cars. It also included a lengthy scene of a moose (or a buffalo?) dying on a river island, and wolves and grizzly bears feeding on it. That scene actually featured elsewhere, too, also as photos in National Geographic. Anybody knows the name, and possibly can find it on Youtube?