Is bear hibernation a weather phenomenon?

Bear hibernation is not a weather phenomenon. According to relevant public information, lack of food is the main reason for animal hibernation. If there is enough food, many bears don't hibernate, but hunt all winter. But when there is not much food, bears will hide in caves for the winter. When small mammals hibernate, their body temperature will drop rapidly, but the bear's body temperature will only drop by about 4 degrees, otherwise the heart rate will slow down by 75%. Once the bear begins to hibernate, its energy source changes from diet to fat stored in the body.