Arctic critters like the snowy owl (above) have no trouble gallivanting across bitter tundras or gliding through freezing polar sea water in the dead of winter.

While other animals hunker down as cold weather approaches, these creatures with snowy camouflage and thick layers of fat, fur and feathers don't skip a beat.

arctic fox Arctic fox have deep, thick fur that allows them to maintain a consistent body temperature, and their round, compact bodies minimize the amount of surface exposed to the cold. (Photo: outdoorsman/Shutterstock)

white beluga whale Arctic beluga whales swim south in large herds as the sea freezes over. If they get trapped in the ice, they become prey for humans, polar bears and other whales. (Photo: Steve Snodgrass/flickr)

snowshoe hare Snowshoe hares are named as such because of the large size of their hind feet. (Photo: Howard Sandler/Shutterstock)

white swans Tundra swans breed in the Arctic but fly south and winter on the Atlantic and Pacific coasts. (Photo: Josh Anon/Shutterstock)

Three polar bears Polar bears are declining in numbers as the amount of sea ice in the Arctic shrinks. (Photo: Sergey Uryadnikov/Shutterstock)

Two white wolves Arctic wolves live alone or in packs of up to six, and their thick coats provide insulation. (Photo: Wollertz/Shutterstock)