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The polar bear was given its common name by Thomas Pennant in A Synopsis of Quadrupeds (1771). It was known as the "white bear" in Europe between the 13th and 18th centuries, as well as "ice bear", "sea bear" and "Greenland bear". The Norse referred to it as isbjørn ' ice bear ' and hvitebjørn ' white bear '. The bear is called nanook by the ...
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While they are protected, persons going outside settlements are required to carry a rifle to kill polar bears in self-defence, as a last resort should they attack. [77] Spitsbergen shares a common polar bear population with the rest of Svalbard and Franz Joseph Land. The Svalbard reindeer (R. tarandus platyrhynchus) is a distinct sub-species ...
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 ...
Articles relating to the polar bear (Ursus maritimus), a hypercarnivorous species of bear. Its native range lies largely within the Arctic Circle , encompassing the Arctic Ocean and its surrounding seas and landmasses, which includes the northernmost regions of North America and Eurasia .
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.
A bear patella bearing butchery marks has been dated to 10860–10641 BC; it was found in the Alice and Gwendoline Cave, County Clare. DNA studies have shown that the Irish bear was intermediate between the modern brown bear and modern polar bear. [7] This suggests that the Irish bear interbred with archaic polar bears during the Pleistocene. [8]