There are more kinds of bear. There are polar bear, black bear, grizzly and many more. The article I bring to you today is about Polar bear. When I was a kid I like to see bear. The thought in my mind was, bear is not dangerous. Am wrong and they are very dangerous, they human and other kinds of animals. Polar bear beling to animalia kingdom, phylum chordata and mammalia class. Polar bear is the world largest bear together with the omnivorous koiak bear which is certainly the same size. The adult male bear is weighs around 350-680 kg. The adult female is about half the size of the adult male bear. The polar bears are born on land and they spend most of their time at sea therefore their scientific name is "maritime bear". Polar bear can hunt consistently only from sea ice and they can spend much of their time on the frozen sea. Polar bear is an enormously powerful predator. If you see bear around your property or land, I advice you to run as fast as you can do you wont get hurt. Polar bear known to eat wide variety of other wild foods like, muskox, birds, reindeer, rodents, shellfish, crabs etc. Talking about reproduction and life cycle, the male may follow the tracks of a breeding female for 100 km or more. After find her engage in intense fighting with other males over mating rights. The fighting usually result in scars and broken teeth. Partners stay together and mate repeatedly for an entire week and the mating include ritual induces ovulation in the female.