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The East Siberian brown bear (Ursus arctos collaris) is a population or subspecies of brown bear which ranges from eastern Siberia, beginning at the Yenisei river, north to the Arctic Circle, as far as Trans-Baikaliya, the Stanovoy Range, the Lena River, Kolyma and generally throughout Yakutia and the Altai Mountains.
[3] [6] In some cases, the big adult males of these populations may have matched the Kodiak bear in size. [3] East Siberian brown bears from outside the sub-Arctic and mainland Ussuri brown bears average about the same size as the largest-bodied populations of grizzly bears, i.e., those of similar latitude in Alaska, and have been credited with ...
Bear habitats are generally forests, though some species can be found in grassland and savana regions, and the polar bear lives in arctic and aquatic habitats. Most bears are 1.2–2 m (4–7 ft) long, plus a 3–20 cm (1–8 in) tail, though the polar bear is 2.2–2.44 m (7–8 ft) long, and some subspecies of brown bear can be up to 2.8 m (9 ...
Individual bears vary in size seasonally, weighing the least in spring due to lack of foraging during hibernation, and the most in late fall, after a period of hyperphagia to put on additional weight to prepare for hibernation. [38] [39] Brown bear skeleton. Brown bears generally weigh 80 to 600 kg (180 to 1,320 lb), with males outweighing ...
Rank Common name Scientific name Family Image Average mass (kg) Maximum mass (kg) Average length (m) Maximum length (m) Shoulder height (m) Native range
Ussuri brown bears, along with the smaller black bears constitute 2.1% of the Siberian tiger's annual diet, of which 1.4% are brown bears. [12] [13] Ussuri brown bears that exceed 300 kg are reported to be invulnerable to attacks by Siberian tigers. [14] The effect the presence of tigers has on brown bear behavior seems to vary.
The Eurasian brown bear has brown fur, which ranges from yellowish-brown to dark brown, red-brown, and almost black in some cases; albinism has also been recorded. [4] The fur is dense to varying degrees and the hair can grow up to 10 cm (3.9 in) in length.
Captive bear with cub at Tierpark Hagenbeck, Germany. The Kamchatka brown bear is the biggest brown bear in Eurasia, [3] with a body length of 2.4 m (7.9 ft) to 3 m (9.8 ft) tall on hind legs, and a weight up to at least 650 kg (1,430 lb).