Animals can be grouped according to external features

Animals with similar external features can be grouped together.

Number of Legs

Animals with two legs  : eagle, hornbill

Animals with four legs : bear, crocodile

Animals with six legs   : butterfly, rhinoceros beetle

  Animals with legs       : cat, crocodile, hamster

 Animals without legs : eel, snake, fish

How thier bodies are covered (Fur,Feather, scales)

Animals with fur         : bear, rabbit, tiger

Animals with feathers: parrot, duck, eagle, owl

Animals with scales    : crocodile, snake, fish

 

Beak

Animals with beak      : cock, parrot

Animals without beak : rabbit, bear

Wing

Animals with wing      : owl, eagle

Animals without wing : fish, tiger

 
Tail

Animals with tail      : mouse, dog

Animals without tail : orang utan, crab

 
Horn

Animals with horn      : rhinoceros, goat

Animals without horn : cat. monkey

 
Claw

Animals with claw      : cock, eagle

Animals without claw : rabbit, frog