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The polar bear is the largest living species of bear and land carnivore, though some brown bear subspecies like the Kodiak bear can rival it in size. [ 31 ] [ 32 ] Males are generally 200–250 cm (6.6–8.2 ft) long with a weight of 300–800 kg (660–1,760 lb).
A male polar bear cub named Rasputin was relocated from Moscow to the Nuremberg Zoo in December 2008 for what was thought to be an extended stay before his permanent move to the Zoo Aquarium de Madrid. Originally meant to remain in Germany for only a year, the male bear—called "Raspi" by fans—shared Flocke's enclosure.
The name is symbolic because the polar bears are 100% dependent on sea ice for their survival. Polar bears catch all their prey from the sea ice, so no sea ice – no polar bears. Due to global warming, the sea ice in the Arctic Sea is rapidly diminishing, and the latest forecasts predict that the polar bear may be almost extinct in the wild 40 ...
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Black bears are not closely related to brown (i.e. “grizzly”) bears or polar bears, and she more characteristics with Asian bears. They are omnivores who generally live solitary lives.
It is important the the female polar bears have fed enough in the spring and summer before fall, because of the scarcity of food on land when winter comes. While in the maternity den, the mother polar bear will not eat, drink or defecate. The female polar bear will stay in the maternity den and give birth to her cubs. [3]
Original - Mother polar bears nurse their cubs for as long as 30 months. The milk of Polar Bears mothers is very fat-rich. As a cub grows older the frequency of nursing decreases. Edit 2 - Stabilised wobble, now a slight 'jitter'. Adjusted brightness and contrast. Cropped to subject, removed bear in bottom right.
Polar bear feeding on a seal on an ice floe north of Svalbard, Norway. It is the most carnivorous species. The sloth bear is not as specialized as polar bears and the panda, has lost several front teeth usually seen in bears, and developed a long, suctioning tongue to feed on the ants, termites, and other burrowing insects