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The polar bear (Ursus maritimus) is a large bear native to the Arctic and nearby areas. It is closely related to the brown bear, and the two species can interbreed.The polar bear is the largest extant species of bear and land carnivore, with adult males weighing 300–800 kg (660–1,760 lb).
The trackways suggest that Arctodus had an oval-shaped, undivided pad on its sole, front paws that were slightly larger than its back paws, possessed long claws, and had its hind foot overstep the forefoot when walking, like modern bears. [81] An additional A. simus paw print measuring 15 cm (5.9 in) long and 19 cm (7.5 in) wide has been ...
By far the largest bear species discovered, estimated to stand around 4.0 m (13 ft) and weighing 1,600 kg (3,500 lb), they are genetically closer to the spectacled bear (Tremarctos ornatus), than to Arctodus of North America, implying the two extinct forms evolved large size in a convergent manner.
Skull of a harbor seal Skeleton of a harbor seal in the Seal Museum in Iceland. Individual harbor seals possess a unique pattern of spots, either dark on a light background or light on a dark. They vary in colour from brownish black to tan or grey; underparts are generally lighter. The body and flippers are short, heads are rounded.
The Tremarctinae or short-faced bears is a subfamily of Ursidae that contains one living representative, the spectacled bear (Tremarctos ornatus) of South America, and several extinct species from four genera: the Florida spectacled bear (Tremarctos floridanus), the North American giant short-faced bears Arctodus (A. pristinus and A. simus), the South American giant short-faced bear ...
The ulna is estimated to have been 48.5 cm (19 in) long when complete- for comparison, modern subadult polar bear ulnae are 36–43 cm (14–17 in) long. [1] The ulna was dated to the early Weichselian of the Late Pleistocene (~70kya). [2] Of the 16 specimens identified as Pleistocene polar bears, this is the only fossil ascribed to this ...
[2] [3] [4] The skeleton of a bear thought to be 11,000 years old or more was removed from the caves in 2008. The bones were found by cavers in 1995, deep in the Uamh an Claonaite system and have been examined by the National Museums Scotland to determine the age and species.
Original - The polar bear (Ursus maritimus) is a bear native to the Arctic. Polar bears are the world's largest land carnivores, with most adult males weighing 300–600 kg (660–1320 lb); the adult female (pictured) are about half the size of males. A semi-aquatic marine mammal, the polar bear has adapted for life on a combination of land ...