Though playfully jousting here, bears are very solitary animals and are rarely observed interacting with one another apart from mating season. However, a family structure maintains intact for the bear’s first 30 months. Cubs will drink their mother’s milk and depend on her for survival. Once a bear survives to mature adulthood, it has an excellent chance of living 25 years in the wild. In fact, mortality rates are as low as 5 percent for adult polar bears. On NATURE, we see polar bears roaming arctic Canada, but they are also found in the U.S. (Alaska), Russia, Greenland, and Norway.