Adorable Pictures Show The Bond Between Newborn And Mother Polar Bear (13 Photos)

The average weight of captive polar bear cubs is somewhere in between 570 grams and 750 grams (1.2 to 1.6 lbs) at birth. In the wild habitat, they often hardly weigh more than a pound at birth. However, they will attain 7.7 pounds in just 30 days after birth. They will stay inside the den for as long as 60 days after birth. While maternity den the polar bear cubs not only stay safe from predators, they also get warm. Once they reach 2-months age, they will leave the den. By the time baby polar bears leave their dens, they weigh 10 – 15 kg (22 – 33 pounds).