Page 5 - Science class 4

Terrestrial or Land Animals

Animals that live on land are called terrestrial animals. These animals have
certain distinct features for life on land. They have legs or limbs to move, lungs

to breathe, hairy or thick skin to bear heat and cold, well developed nervous
system and sense organs.

Terrestrial animals can be categorized into Polar animals, Desert animals,
Grassland animals and Forest animals.

1. Polar Animals

The North and the South poles of the Earth are very cold regions. These
places are known as polar areas .

Snow and ice cover the polar areas most of the year. Animals living in
these places look different in each season.

Polar animals grow heavy fur in winter. They shed much of their fur in
summer.

These animals have also heavy fat deposits under their skin which protect

them from cold climate.
Polar bear , musk ox seal walrus , , and penguin are adapted to live in these

areas.

Penguin Polar Bear Camel
2. Desert Animals

Desert areas receive scanty means very less rainfall.

These areas are hot and dry.

Animals living in deserts are adapted to survive with little water.
They get water from their food. Animals like camel drink a lot of water at a

time.

They can live without food and water for many days.
Animals, like camel, has padded feet to move swiftly on hot sand. They

have humps on their back which store fat. Fat gives them energy when
they do not get food or water for many days.

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