Animals and Birds PDF Study Notes

On im als And Bir ds:=.::> ,-------------r----~--------r----~------ 1 I I ----J____ I : --------...

On im als And Bir ds:=.::> ,-------------r----~--------r----~------ 1 I I ----J____ I : -------- __=> j 1 ! ~~ - A ~i:nals i /alk/Run Swim ~· ove men t In Ani mal s : : ·= : : Fea ther s 8 Down feat hers Nes ts Of Birds rawl Fly : ' a Body feathers I Hatching Eati ng Hab its in o Flight feat hers ~ nim als Beaks Herbivores e Sho rt Carnivores e Curved Omnivores e Long I ~ Flat and bro ad ~ -:> @ Scissor-like Feet and claws c = _B ir~ ~ c, Talons Features that help birds to fly ANIMALS Animals are also living bei ng s like us. They also bre ath e, move abo ut, eat an d bre ed to produce mo re of the ir kind. Can they spe ak like us? ► Animals can ma ke sou nd s bu t the y can no t~ak 3.ve a pet? Yes/No. rrk~ h].Jmc!nS. However, the y are similar to us in ma ny ways. you wis h it cou ld 1? ~1 An im als can see, sm ell an d hea r. ~i An im als gro w old an d die. ll1 An im als ne ed foo d an d wa f, ter to live. An im als give bir th to yo un g on es or lay eggs. / I An im als bre ath e. f7 An im als sho w mo vem ent. 140  £~ MOVEMENTS IN ANIMALS Do Y?U know that most anima ls which live on land have fou-rTegs? They are called land an i1nafs, like horse s, cows~ ebras, giraffes,- d·ogs, etc. They use their legs to walk-o r run. ~roco diles and lizard s have short legs but legs they prefer to crawl. Snake s do not h~ve legs. They crawl with the help of their body muscl es. - A snake moves with - A crocodile crawls body muscles Anim als that live in water do not requi re legs. Fishes swim in water with the help of vims with fins and tail. ke limbs Ducks swim in water with their webb ed feet. Turtle s have paddl e-like limbs to push water and swim. Bird s are those anima ls that have feathe rs. They have wings to fly. Some insec ts also have to fly have wings to fly. Insect s also have three pairs of legs to walk or move. is also. EATING HABITS IN ANIMALS Anim als canno t prepa re their own food. They eat plants or the flesh of other anima ls. Anim als that feed on grass or leaves of plants are called plant eating anima ls or herbiv ores. f ~ows, h~r~e s, goats and rabbit s are herbiv orous anima ls. 141  On - the----......,_- other hand, ~ some animals like 11·ons._--R-____ , tigers, yvolves, etc., eanhe flesh of~ These are called carnivQ_res. '""' - trials. ! here are some ~I!imal~ t_!-iat ea: _plants_~s Well -~ h_e~ t~als.-'!n~~ Hed o_mnivores. Humans, crows, and bears are SUch animals. FOOD CHAIN A tiger eats animals like deer or goats. 'What does a deer feed -on? A deer feeds on p.lagts. The system where a small animal eats 2!ill}ts and is ~a!~:r:!_by a big animal whichcan further · · be eaten by a bigger animal is called-a-food chain. In other words, food chain -can be defined as the feeding relationship between living things where energy and materiahre transferred from one organism to the other. r - -- -- - All food chains begin with plants. So, all animals on the Earth depend directly-or- indirectly on plants for food. · Like animals, birds also participate in food chain. -------- --- Deer Tiger ,I FOOD CHAIN I BIRDS Birds are animals that have feathers. They can 11 fly. They have wings to fly and limbs to walk' ru' hop or perch. 142  ,, ,. , I , , I Sparrow Hawk FOOD CHAIN OF BIRDS Althou gh, most birds can fly, some birds like pengui ns, emus and ostrich es cannot fly. Can you tell why? What helps a bird to fly? Birds have a pair of wings. The wings are attache d to.the breastb one with powerful muscles. A stream lined body, shaped like an Birds have limbs aeroplane, helps them to cut throug h the air. to perch Birds have light hollow bones. Birds also have feathers that helps in flying. the humming bird ' i- -- , is the ostrich. ) Breastbone: A thin, flat bone running ' down the centre of the chest. ( , Flight SPECIAL FEATURES OF Bl RDS , ~ ~\~ er Feathe rs Birds mainly have three kinds of feathers: - - -- - - Down feathers are the soft, smal} and fluffy feathers found on the unders ide of the bird. They keep their body warm. Body feather s cover the rest of the ~ody and :~w,---------)(G-·. ' 1 give shape to the bird. Down Flight feathers are on the wings and tail. They feather help the bird to fly and change directio n. 143  Bea ks not hav ds do--- Bir-=-~ e tee th. The y hav e heal =-- - -~ --:-------::-""'- -:---=..: