Inhabiting the ice and sea of the Arctic, polar bears are well-equipped for survival in a harsh environment. Two coats of fur and a thick layer of blubber help insulate the polar bear’s body from the cold, keeping its temperature at an even 37° C (98.6° F). … Polar bears are also equipped with strong noses.
What does a polar bear need to survive?
Polar bears need an average of 2 kg (4.4 lb.) of fat per day to obtain enough energy to survive. A ringed seal weighing 55 kg (121 lb.) could provide up to eight days of energy for a polar bear.
How do polar bears survive in the snow?
Polar bears survive in the winter by using two layers of fur, a top layer and a bottom layer. … When the bears go for a swim, the top layer prevents the bottom layer from getting wet. The under layer of their fur is made of thick and woolly hair that acts like a sweater and keeps the bear extremely warm.
How do polar bears survive in the cold Class 7?
2) Polar bear has two thick layers of fur on its body: This fur protects the polar bear from extreme cold by preventing the loss of heat from its body. Thus, the two thick layers of fur keep the polar bear warm in extremely cold climate. The polar bear has also fur on its feet and toes.
Where do polar bears need to survive?
Polar bears live in the Arctic, on ice-covered waters. Polar bears rely on sea ice to access the seals that are their primary source of food, as well as to rest and breed. The total polar bear population is divided into 19 units or subpopulations. Sixty percent of the sub-populations are in Canada.
How do polar bears move?
Walking & Running
Like humans, polar bears have a plantigrade stance: they walk on the soles of their feet with their heels touching the ground first. Like other bears, they can also stand on their hind feet and walk upright for short distances. Polar bears generally walk with a steady, lumbering gait.
How do polar animals survive the cold?
They survive freezing temperatures for months at a time by developing some specialized features that help them stay warm, including insulating fur, layers of fat, and oily skin coatings.
How do polar bears survive in warm zoos?
Perhaps best known is its clear – not white – fur, with a dense undercoat and hollow guard hairs outside. It captures air to insulate against frigid water. Few of us get close enough to see the oily black skin underneath; some believe it may help absorb heat.
How do polar bears stay warm in the Arctic?
Polar bears are incredibly well insulated with both a thick layer of blubber underneath an even thicker layer of fur, but that’s not all… They are incredibly well insulated with a layer of blubber that can be up to 10cm thick covered with another 15cm of fur.
Why do polar bears only live in the Arctic?
Polar bears depend on the sea ice, which forms above the open waters where their seal prey lives. They will spend time on land when sea ice is not available (and most pregnant polar bear females make their dens on shore near the coast).
How do polar bears living in polar regions adapt itself Class 7?
Explanation: To live in an extremely cold climate, the polar bear has many adaptations, such as: (a) The layer of fat under the skin for insulation. (b) Long curved and sharp claws to walk and run on slippery ice.
Which of these 4 help polar bears adapt to live in extreme cold climate?
The features adapt polar bears to live in extremely cold climate are white fur, fat below the skin, a keen sense of smell. Thus, option (i) is correct.
What is Polar Region class 7th?
POLAR REGIONS. Polar region are covered with snow and it is very cold for most part of the year. Sun does not set at the pole for six months and sun does not rise for other six months. Temperature goes as low as -37 degree C in winters.