Grouping of Animals

1. Animals can be grouped according to their similar external features.

i. animals with fur

   - bear  - lion                                                 

ii. animals with scales

   -crocodile  -fish

iii. animals with horns

    -cow  -goat 

iv. animals with feathers

     -duck -eagle

v. animals with tail

-deer,tiger

vi. animals with wings

     -bee  -eagle                                                                                              

 A bird has wings and some insects also have wings.

2. Animals can be grouped according to their similarities.                                      

i. animals with                                                                                             

    -beak  -feathers  -wings  -claws  -two legs

     parrot , eagle                                                                                                   

ii. animals with 

    -tail   - scales                                                                                                  

     crocodile , fish

iii. animals with

    -fur  -four legs -tail

     bear , deer

Some animals have fur and some animals have scales on their bodies.       

3. Animals can be grouped according to their number of legs.                                

i. two legs

  -duck, eagle

ii. four legs

   -lion,cow,tiger

iii. six legs

    -mosquito,bee

Birds have two legs. Insects have six legs.