Bears live primarily in the forest and they have a remarkable way of adapting to people moving in to their territory. Black bears eat berries, nuts, tubers, roots, honey, worms, buds, leaves, fruit, twigs, grubs, fish, insects, and small mammals. In the spring, black bears even eat the inside layer of young trees. They must eat between 11 and 18 pounds of food each day to stay healthy. Black bears hibernate during the winter months.
Water should be boiled for at least 3 to 5 minutes to sanitize it. Some agencies recommend boiling for 10 minutes just to be safe. If you live at high altitudes, add a minute for every 1000 feet above sea level.
1 Go directly to the next step.  Boil the water for one minute. If you live at an altitude of 6500 feet or higher, boil the water for 3 minutes. The World Health Organization suggests you bring the water to a rolling boil for one minute, which means, boil the water rapidly with lots of bubbling.