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.
It was recently confirmed that Jonathan Rhys-Meyers will join the cast of Vikings Season 5. Fans immediately speculated that the Irish actor will play an important role in the series. However, the producers have not yet revealed Rhys-Meyersâ character.