Page 24 - DK Children's Encyclopedia
P. 24

Animal groups                                                                     SEE ALSO

                                                                                               ▸ ▸ Animal families
                                                                                                p.21

           Animals can be divided into groups, depending on their                              ▸ ▸ Fish  p.101
           body features. Animals that look and act in similar ways                            ▸ ▸ Insects  p.134
           are grouped together. This is called classification.                               ▸ ▸ Invertebrates
                                                                                                p.139
                                                                                               ▸ ▸ Spiders  p.238
                                         Amphibians                         Birds
                                       These animals have              Birds have feathers,   ▸ ▸ Vertebrates  p.266
                                       wet skin. They live in         which keep them warm
                                        or near water. The
        The green band                  babies hatch from            and help most to fly. They
        shows which                     eggs, and change              have beaks to catch or
        animal groups                    body shape to                   pick up food.
        are vertebrates.
                                         become adults.













                                                                                                           Fish
          Invertebrates                                                                             Fish live in water. They
       There are many groups                                                                         are covered in bony
          of invertebrates,                                                                          plates, called scales,
       including insects, slugs,                     Animal groups                                    and have special
        spiders, and shellfish.                                                                       organs called gills
                                                    Animals are divided into                           for breathing.
                                                       two main groups.
                                                   Vertebrates have spines,
                                                     invertebrates don’t.
                                                    There are more groups
                                                       inside these two
                                                         main groups.














              Reptiles
           Reptiles have scaly                                                                        Mammals
             skin. They are                                                                       Mammals have fur or
          cold-blooded, which                                                                      hair on their bodies.
           means they must                                                                          They feed their
           warm up in the sun                                                                      babies on milk made
             before they                                                                            by the mothers.
              can move.




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