The first eight wolves arrived through the Roosevelt Arch on the morning of 12 January 1995, in a horse trailer escorted by two park service patrol cars. The wolves had been live-trapped in three different packs in Jasper National Park and the surrounding wilderness of Alberta, Canada, weighed, fitted with radio collars, and flown south. Wyoming Farm Bureau Federation lawyers had obtained a stay from a federal appeals court before the plane landed, and the wolves spent the next several hours confined in their transport crates while the legal status of the project was resolved. The stay was lifted just after midnight. …What happened in the thirty years after 1995 has become one of the most-cited and most-contested case studies in contemporary ecology.