is there any peculiar phenomenon related to sun in the circle where these animals are found?
Yes, the midnight sun - the centre of the sun is visible at local midnight, and polar night - the centre is not visible at local noon.
Arctic Circle
The Arctic Circle is the southernmost latitude in the Northern Hemisphere at which the centre of the sun can remain continuously above or below the horizon for twenty-four hours; as a result, at least once each year at any location within the Arctic Circle the centre of the sun is visible at local midnight, and at least once the centre is not visible at local noon.
where did the polar bear live with her family Within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. what is its food? Its diet primarily consists of ringed and bearded seals. is it flexible with food? Yes, they also eat muskox, reindeer, and even plants like berries, roots, and kelp. is it used a mascot? Yes, it is seen on the Canadian two-dollar coin, vehicle licence plates in the Northwest Territories in Canada, and it is the mascot of Bowdoin College, Maine.
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Arctic Circle [SEP] Midnight sun and polar night
The Arctic Circle is the southernmost latitude in the Northern Hemisphere at which the centre of the sun can remain continuously above or below the horizon for twenty-four hours; as a result, at least once each year at any location within the Arctic Circle the centre of the sun is visible at local midnight, and at least once the centre is not visible at local noon. Directly on the Arctic Circle these events occur, in principle, exactly once per year: at the June and December solstices, respectively. However, because of atmospheric refraction and mirages, and also because the sun appears as a disk and not a point, part of the midnight sun may be seen on the night of the northern summer solstice up to about 50 minutes (′) () south of the Arctic Circle; similarly, on the day of the northern winter solstice, part of the sun may be seen up to about 50′ north of the Arctic Circle.