Bears hibernate during the winter months in most areas of the world. Duration of winter denning is dependent upon latitude and varies from a few days or weeks for black bears in Mexico to 6 months or more for bears in Alaska (Kolenosky and Strathearn 1987, Haroldson et al. 2002).
On March 17, 2016, History renewed Vikings for a fifth season of 20 episodes, which is set to premiere on November 29, 2017.
The Vikings have won one NFL Championship, in 1969, before the league's merger with the American Football League (AFL). Since the merger, they have qualified for the playoffs 25 times, third-most in the league. The team has played in Super Bowls IV, VIII, IX, and XI, though failing to win any of them.