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Hace 2 días · 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).
Hace 1 día · Polar bears may be exposed to T. gondii through consumption of marine mammals such as seals, which have a relatively high prevalence (26–63%) 69 in the eastern Canadian Arctic.
Hace 4 días · Bear, any of eight species of large short-tailed carnivores found in the Americas, Europe, and Asia. The sun bear is the smallest, often weighing less than 50 kg (110 pounds). The largest bear, and the largest land carnivore, is either the polar bear or the Kodiak bear; either can weigh up to 720 kg (1,600 pounds).
Hace 4 días · Svalbard. An arctic playground where there are more polar bears than people. This is a land of glaciers, the northern lights, the midnight sun, and frozen tundra. Svalbard may seem barren, but it is filled with arctic wildlife like reindeer, walrus, and polar bears.
Hace 14 horas · A polar bear sits on an ice in Svalbard (Alamy/PA) A wilderness within remarkably easy reach, this Norwegian-ruled archipelago is one of the best places to observe polar bears in their natural habitat. As ice melts during summer months, when the sun shines for 24 hours a day, it’s possible to access many of the islands.
Hace 14 horas · Fact #311: Polar bears hunt walruses by targeting those crushed in panic rather than attacking directly. This strategic approach allows them to conserve ener...
Hace 14 horas · We made two novel detections: the first detection of a Mycobacterium tuberculosis complex member in Arctic wildlife and the first of E. rhusiopathiae in a polar bear. We found a prevalence of 37% for E. rhusiopathiae, 16% for F. tularensis, 29% for Mycobacterium tuberculosis complex, 18% for T. gondii, and 75% for Trichinella spp.
