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Polar bear. 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 species is sexually dimorphic, as ...
The key danger for polar bears posed by the effects of climate change is malnutrition or starvation due to habitat loss.Polar bears hunt seals from a platform of sea ice. Rising temperatures cause the sea ice to melt earlier in the year, driving the bears to shore before they have built sufficient fat reserves to survive the period of scarce food in the late summer and early fall.
Cougars kill small bear cubs on rare occasions, but there was one report of a bear killing a cougar of unknown age and condition between 1993 and 1996. [145] [146] Eurasian lynx (Lynx lynx), the largest type of lynx and the only one to regularly take large prey, is similarly an habitual victim of kleptoparasitism to brown bears throughout Eurasia.
The polar bear is an example of a pagophilic species.. Pagophily or pagophilia is the preference or dependence on water ice for some or all activities and functions. The term Pagophila is derived from the Ancient Greek pagos meaning "sea-ice", and philos meaning "-loving".
August 14, 2024 at 3:35 AM. [Getty Images] Two polar bears killed a worker at a remote Arctic radar station in Canada's northern Nunavut territory, prompting an investigation into the rare fatal ...
In the spring, bear are hunted in coastal areas where they gather for food. During the autumn, bear are hunted while feeding on salmon or wild berries in the surrounding tundra. The average size of the bear taken is around 7.5–8.0 ft (2.3–2.4 m) in Magadan and Okhotsk and 8.0–8.5 ft (2.4–2.6 m) in Kamchatka. [6]
A grizzly-polar-bear-hybrid (also named grolar bear, pizzly bear, zebra bear, [1][2] polizzy, grizzlar, or nanulak) is a rare ursid hybrid that has occurred both in captivity and in the wild. In 2006, the occurrence of this hybrid in nature was confirmed by testing the DNA of a unique-looking bear who had been shot near Sachs Harbour, Northwest ...
Solitary predator: a polar bear feeds on a bearded seal it has killed. Social predators: meat ants cooperate to feed on a cicada far larger than themselves.. Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey.