how old are bear cubs when they leave their mother
POLAR beAR FAMILIes. â¢ Polar bear cubs stay with their mother till they are 2 years old. â¢ Polar bear mothers usually have two cubs, although sometimes they have one or three. â¢ Polar bear cubs leave the den when they are three months old. â¢ After they leave the den, cubs live out on the ice with their mother. During severe storms, the mother may make a temporary den in the snow. â¢ Polar bear milk is high in fat content.