How long does a poler bear feed its milk to its baby?

Polar bear mothers typically nurse their cubs for about 2.5 to 3 years. During this time, the cubs depend on their mother's milk for nourishment, which is rich in fat and essential for their growth and development. The nursing period also allows the cubs to learn vital survival skills before they become more independent. After weaning, the cubs continue to stay with their mother for some time until they are ready to hunt on their own.