Polar bears look cute, but they are very nasty! they are carnivores. Better stay away from them, because Polar bears can run up to 40 km/H. They can find their prey from far away with their excellent sense of smell. Can Polar bears swim? have you ever seen that in the zoo? Polar bears are excellent swimmers and divers. They can dive for up to two minutes. The mating season of Polar bears is from April to June. During this period of time males and females Mate with each other, but after mating, they separate again immediately. The females dig a snow cave in October, where they bring their young into the world. The babies are only 20 to 30 cm tall when they are born and are blind and deaf.