Cubs are about the size of a small squirrel or chipmunk when born. They grow quickly by feeding on their mother's milk. They start to eat other foods after a few months. The cubs stay with their mother for a few years. The mother bear teaches them how to find food and how to stay safe.
Many bears live where the winter is very cold.
In these places, bears will find or make a den. They will enter the den when it gets too cold and stay there until spring. Bears will not eat or drink during this time. Cubs are born while the mother bear is hibernating. Bears have a few enemies.