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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).
Chameleons - Colour change signals a chameleon's physiological condition and intentions to other chameleons. [3] [4] Because chameleons are ectothermic, they change color also to regulate their body temperatures, either to a darker color to absorb light and heat to raise their temperature, or to a lighter color to reflect light and heat, thereby either stabilizing or lowering their body ...
The white protective coloration of arctic animals was noted by an early student of camouflage, the naturalist Alfred Russel Wallace, in his 1889 book Darwinism; he listed the polar bear, the American polar hare, the snowy owl and the gyr falcon as remaining white all year, while the arctic fox, arctic hare, ermine and ptarmigan change their ...
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The Arctic fox (Vulpes lagopus), also known as the white fox, polar fox, or snow fox, is a small species of fox native to the Arctic regions of the Northern Hemisphere and common throughout the Arctic tundra biome. [1] [8] [9] [10] It is well adapted to living in cold environments, and is best known for its thick, warm fur that is also used as ...
Tragic photos taken on a remote Arctic island show two young polar bear cubs playing with and chewing on a large sheet of black plastic as their mother looks away.
The polar bear population is estimated to be around 16,000 in Canada, which is more than 60% of the world’s population. The bears are said to be most active during the day and have a keen sense ...
The Kodiak bear (Ursus arctos middendorffi), also known as the Kodiak brown bear and sometimes the Alaskan brown bear, inhabits the islands of the Kodiak Archipelago in southwest Alaska. [3] It is one of the largest recognized subspecies or population of the brown bear , and one of the two largest bears alive today, the other being the polar bear .