How are they able to withstand the coldness when it is winter time in the arctic circle?

Animals in the Arctic Circle have various adaptations that help them withstand the extreme cold. Many species, like polar bears and seals, have thick layers of blubber and fur that provide insulation. Additionally, behavioral adaptations such as huddling together and seeking shelter help conserve warmth. Some animals also enter a state of reduced metabolic activity, like torpor or hibernation, to conserve energy during the harsh winter months.