Video by @daisygilardini / A polar bear mother cuddle and plays with its only cub.⁣ Polar bears usually give birth to two cubs. The mortality rates of cubs during their first year of life is around 50%.⁣ When a mother is left with only one cub, field biologists have found that the mother is much more inclined to interact and play with its sole surviving cub. Play is an extremely important part of the process of growing up for any cub. It helps the cub to grow stronger, build self-confidence, and