Polar bear (Ursus maritimus) : The world’s largest land carnivore, Ursus maritimus (Ursus maritimus), is an animal of the genus Ursus in the bear family. The body is large and stout, with shoulder height up to 1.6 meters. Adult males weigh between 300 and 800 kilograms and can reach a head length of 2.5 meters. Females are smaller, weighing 150-300 kg and 1.8-2 m long. Similar to the brown bear, but without the shoulder hump. The head is relatively smaller than that of other bears, with small, round ears and a slender neck. The skin is black, because the hair is transparent, the appearance is usually white, but also yellow and other colors. The body size is huge and fierce. Each foot has five toes and non-retractable claws. The front PAWS are large and paddle-shaped, suitable for swimming and walking on thin ice.
Polar bears live in the ice-covered waters of the Arctic Circle. In winter, caves can reach depths of permafrost. The preferred habitat is the Arctic sea ice floes. Periglacial and pressure ridges that fracture and refreeze provide the best hunting grounds. Usually alone, except during mating and lactation. About 66.6 percent of the time was inactive for most of the year, with 29.1 percent spent walking and swimming, tracking prey 1.2 percent, or eating 2.3 percent. Polar bears are excellent swimmers and may search a wide range for food. It’s the most carnivorous species, eating 98.5% of its diet meat. The main prey is seals, and even larger species such as walruses and beluga whales. They also prey on seabirds, fish, small mammals, and sometimes clean up carrion. They occasionally eat berries or plant roots during the summer. At the end of spring and summer, they will come to the seaside to take the seaweed to supplement the minerals and vitamins the body needs.
Polar bears are found in ice-covered waters throughout the Arctic Circle. In a region where the Arctic sea ice completely melts each summer, polar bears are forced to spend months on land, where they feed mostly on stored fat until the sea surface freezes.
