How Bears Get Through the Winter
In winter, snow covers the ground. Plants die back and food is hard to find. A bear has a plan for this hard season. It sleeps through much of the winter.
All summer and fall, a bear eats and eats. It eats berries, nuts, fish, and plants. Its body turns the extra food into a thick layer of fat. This fat is like a pantry packed inside the bear.
When the cold comes, the bear looks for a den. A den can be a cave, a hollow log, or a hole dug under a tree. The bear curls up inside. Its heart beats slowly and its body stays cool. The bear lives on its stored fat, so it does not need to eat or drink for a long time.
A bear in its den is not in a deep sleep like a log. It can wake up if something disturbs it.
If a mother bear has cubs, they are often born in the den during winter. When spring comes, the bears walk out, hungry and ready to eat again.