These stunning images show the first two weeks of life of a newborn polar bear. Mother Tonja gave birth to her cub, who has not yet been named, on December 1 at Tierpark Zoo in Berlin, Germany. Since then the young cub has been growing in strength as it spends most days feeding on its mother and snuggling up to her thick fur. The guinea pig-sized cub is still blind and deaf but already has a healthy appetite, eating every two hours. The pair will not leave their enclosure until spring when they will be seen in public. Zoo staff has said they are "very satisfied" with the cub's development. Thanks to new camera technology, experts can follow the events in the bear's litter cave around the clock. The mortality rate of young polar bears is unusually high. In the natural habitat, about 85% of polar bears do not make it past their second birthday. Since absolute rest for the mother and baby is key to successfully rearing the newborn, the bears will be left alone in the coming weeks. 14 Dec 2018 Pictured: Polar bear cub born on December 1. Photo credit: Tierpark Berlin / MEGA TheMegaAgency.com +1 888 505 6342