ANIMALS IN POLAR REGION, CLASS 7

 Most common animals found in these regions are polar bears and penguins. Other animals that can be found in polar areas are fishes, birds, oxen, musk, reindeer, fox, whales and seals.

POLAR BEARS: 

• The white fur of the polar bear makes it easier for them to hide in the snow and therefore save them from predators.

• In the same way, it makes it easier for them to catch their prey.

• The polar bears have two layers of thick fur on them so that they can survive extremely cold conditions.

• The polar bears move slowly and rest a lot so that they do not get overheated because of their thick fur.

• The polar bears often swim on warm days to keep themselves cool.

• The paws of the polar bear are large and wide so that it can swim as well as walk easily in the snow.

• The polar bear can swim underwater as well.

• The strong sense of smell of polar bears makes it possible to locate its prey during such harsh weathers.

THE PENGUINS:

The penguins are also white in colour so that they can hide in the snow.
They have thick skin with large fat content in their body so that they can survive the cold weather easily.
The Penguins generally live in a crowd or nest closely so that they can stay warm.
The Penguins have webbed feet which allow them to swim.
Other animals living in the polar
regions are many types of fishes, musk
oxen, reindeers, foxes, seals, whales,
and birds. It is to be noted that while
fish can remain under cold water for
long, birds must remain warm to
survive. They migrate to warmer regions
when winter sets in. They come back
after the winter is over. 
Migratory Birds in the Polar Region
The birds in order to protect themselves from cold weather of the winters in the polar region often migrate from these areas to warmer places.
They then return back after the winter season.
For example, The Siberian crane migrates to India in Rajasthan, Haryana and some North East regions during the winter season in Siberia.
These birds that migrate to different places during a change in weather are often called migratory birds.
They can travel used instances of 15000 km to protect themselves from the extremely cold environment.
Such birds migrate to the same places every year.
The migratory birds fly very high so that the heat generated by the flight wings can be disposed of in the cold conditions.
The migratory birds have a sense of direction so that they can travel to the same place every time.
The migratory birds also use landmarks or follow the direction of the sun and stars to migrate.
Some birds also use the magnetic field of the earth and find direction.
Apart from birds, fishes, insects and mammals also migrate.