Page 268 - New Medley 5 Semester 1

 Mammals like some bats and whales travel in search of food each winter.

 Many fishes also migrate. They may swim or move into deeper and warmer

water.

l An eel spends its life in freshwater till
adulthood. For breeding, it migrates to the

Sargasso Sea in the North Atlantic.

l Salmon does just opposite of the eel. It Eel
lives in the sea till it reaches adulthood. Then it migrates to the river to

lay eggs. The young salmons which hatch from the eggs return to the
sea. They again go to the river in about two years to lay eggs when they

become adult.

2 • Analysing/Critical Thinking

Strike out the wrong feature of the following animals.
1. Cow: Large incisors, Broad molars, Small digestive system

2. Eel: Lives in freshwater, Migrates to sea, Lays eggs in river bank

3. Frog: Eats grass, Sticky tongue, Teeth present in upper jaw
4. Penguin: Flippers for swimming, Hops on land, Short hindlimbs

AT ONE GO

m The place where animals live, feed and reproduce is called their habitat.
m Different animals have different organs for breathing, moving and feeding depending on their habitat.

m Some animals have special skills to protect themselves against their predators.
m Some animals migrate to avoid harsh conditions of their habitats.
m Some animals migrate to find suitable conditions for breeding.

REMEMBER THESE TERMS

Inhale : Breathe in air
Exhale : Breathe out air
Predator : Animal which kills and eats other animals
Prey : Animal which is killed and eaten by other animals
Camouflage : Ability to blend with the surroundings

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