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Male polar bears also have proportionally larger heads than females. [34] The weight of polar bears fluctuates during the year, as they can bulk up on fat and increase their mass by 50 percent. [31] A fattened, pregnant female can weigh as much as 500 kg (1,100 lb). [35] Adults may stand 130–160 cm (4.3–5.2 ft) tall at the shoulder.
An average adult male measures 244 cm (8 ft 0 in) in length, and stands 133 cm (4 ft 4 in) tall at the shoulder. The largest recorded wild male weighed 751 kg (1,656 lb), and had a hind foot measurement of 46 cm (18 in). [12] A large male Kodiak bear stands up to 1.5 m (4.9 ft) tall at the shoulder when it is standing on all four legs.
The polar bear alert program was set up around that time. No-one has been killed by a polar bear here since. Cyril is now a technician at the new Churchill Marine Observatory (CMO).
Arctodus is an extinct genus of short-faced bear that inhabited North America during the Pleistocene (~2.5 Mya until 12,800 years ago). There are two recognized species: the lesser short-faced bear (Arctodus pristinus) and the giant short-faced bear (Arctodus simus).
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Polar bear fur is not actually white, but rather clear and hollow, the better to insulate them in icy waters and help them stay afloat. When exposed to the sun, these tubular hairs yellow slightly.
A male walrus is relaxing by the water's edge. Suddenly, a hungry male polar bear comes by to attack the walrus. Startled and nervous, the walrus heads straight for the sea. The bear attempts to bite and scratch the walrus, but the pinniped's thick skin is too much, even for a large bear like itself.
This 1,000-pound, 5-year-old male polar bear arrived at the Louisville Zoo from Henry Vilas Zoo and will soon join Qannik on habitat rotation as a part of a breeding recommendation. More at https ...