Touting the cub’s “bearish female power,” the Tierpark zoo in Berlin, Germany, said Friday it was finally able to perform a medical checkup that determined the sex of a baby born in December to Tonja ...

The polar bear is a carnivorous ... (770–1,540 lb), while a sow (adult female) is about half that size. Although it is the sister species of the brown bear, it has evolved to occupy a narrower ...