05:55Wonders of NatureEpisode 18: Cold - Temperature/AdaptingBBC Two Duration: 2 minutes Tue 19th Mar 2013, 05:55 on BBC Two Northern IrelandAnimals who live in a cold climate, including wolves, bears, birds and buffalo.GenresLearningFactualScience & NatureNature & EnvironmentSeriesWonders of Nature Source: BBC Online