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Insects

Insects have six legs. They use their legs to move around.
Water insects like water boatman use their legs as oars to
swim. Insects like butterflies, bees and houseflies have
wings which help them to fly. The wings of insects are thin,
delicate and are made up of tiny scales.

Reptiles Butterfly

Limbs of lizard Turtle, crocodile and lizard have short limbs. These limbs help
them to crawl. Snakes are legless reptiles. They have scales or
plates on the underside of their bodies to crawl.

Birds

All birds have wings. They use them to fly and move. But not
all birds can fly. They use their hind limbs to walk, run, hop on
land or perch on trees.

Migration Wings of bird

In unfavorable conditions some animals move over a large distance to go another

places and come back to their original place when condition becomes favourable.

Movement of animals over large distances due to shortage of food, cold weather or to

breed is called migration.

The Siberian Crane visits India every year in winter. It then goes back to Siberia during

summer. The Monarch Butterfly flies from Canada to Mexico during the winter.

Fishes like Eels travel in large groups to the sea to lay eggs. On hatching, the parent eel

dies, while the baby eel travel back to the river.

Locusts are insects that migrate in summer. Locusts damage standing crops in fields.

The Arctic Tern is the

champion in migration. It

breeds in the Arctic in

summer. It then travels a

distance of 17,000 km to

the Antarctica during the

winter and again goes

back covering the same Arctic tern Siberian crane
distance.

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