Page 28 - Active Science 5 Ebook and Activity
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Movement in Insects
          Most insects are six legged creatures and

          have wings. Wings help them to fly. Some
          do not have wings, e.g., ants, bedbugs and
          spiders  move  by  crawling.  Some  insects
          are able to swim in water by using their
          legs as oars. A water insect named ‘water                   Water boatman

          boatman’ is an example. Some insects like
          grasshopper are able to hop with the help
          of their hind legs.


          Movement in Land Animals                                                                Grasshopper

          Most of the animals living on land walk
          with  the  help  of  their  limbs  –  the  front
          two  are  called  forelimbs  and the two at                                    Factual Study
          the back are called hindlimbs. Frogs and                      Snail            The only two animals that
                                                                                         can see behind without
          kangaroos are  leapers. Snails and slugs                                       turning their head are
          have a large single foot on which they glide.
                                                                                         rabbit and parrot.

          Movement in Aquatic Animals
          Animals living in water are known as aquatic animals. Fish move with the help of two

          paired fins and a tail fin that helps it to change its direction. An unpaired fin helps the
          fish to maintain its balance.

          Dolphins, whales and porpoises are all mammals that have flippers for smooth swimming.
          Flippers also help turtles, seals and penguins to swim through water.

          Octopuses, squids and cuttlefish take in water and expel it forcefully. Water gets expelled

          backwards and these animals are able to move forward.

          Animals like turtles, octopus and penguins have paddle–like limbs and tail which they
          use to push back water and swim. Frogs and ducks use their webbed feet to swim in
          water.                            Flipper
















                                               Movement in Aquatic Animals


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