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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).
Pinnipeds and polar bears have longer guard hairs forming the most visible fur; [1] polar bears' guard hairs are hollow. Some considerations in judging the quality of an animal's coat: Colour (coat colour other than those allowed in the breed standard results in disqualification)
Polar bear fur is not actually white, but rather clear and hollow, the better to insulate them in icy waters and help them stay afloat. When exposed to the sun, these tubular hairs yellow slightly.
Some high Arctic species like the snowy owl and polar bear however remain white all year round. In military usage, soldiers often either exchange their disruptively-patterned summer uniforms for thicker snow camouflage uniforms printed with mainly-white versions of camouflage patterns in winter, or they wear white overalls over their uniforms ...
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 ...
This is a moderately-sized subspecies with long, shaggy fur. Both dark-colored and light-colored variants are encountered, with intermediate colors predominating. The fur around the neck, chest and shoulders is yellowish-brown or whitish and frequently forms a collar, which no other brown bear subspecies typically possesses in a mature state.
Polar bear feeding on a seal on an ice floe north of Svalbard, Norway. It is the most carnivorous species. The sloth bear is not as specialized as polar bears and the panda, has lost several front teeth usually seen in bears, and developed a long, suctioning tongue to feed on the ants, termites, and other burrowing insects
The polar bear alert team's vehicles are gathering outside, trying to move a bear away from town. "If climate change continues," muses Tee's classmate Charlie, "the polar bears might just stop ...