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  title of the text about animal kingdom  
         
  The animal kingdom comprises two main groups: vertebrates and invertebrates. Before reading further about them, watch the funny video my "boss", author Dulce Rodrigues, has especially created on the subject for you.

  



  VERTEBRATES
Vertebrate animals have a spinal column (also known as spine) formed by small bones, each called a vertebra. Man possesses 24 vertebrae: 7 cervical (1), 12 dorsal (2) and 5 lumbar (3). Generally speaking, vertebrate animals have two pairs of limbs.
human skeleton

There are five main classes of vertebrates: mammals, birds, fish, amphibians, and reptiles. Dogs are vertebrate mammals.

  
 
go to mammals go to birds go to fish and the like go to amphibians go to reptiles
 
 

INVERTEBRATES
Invertebrates are animals lacking a backbone: insects, spiders, shrimps and other crustaceans, molluscs, worms, and so many others. Click on the respective icone to read about them.

  
 
go to insects go to arachnids go to crustaceans go to molluscs go to worms
 
 
#Vertebrates #Invertebrates #AnimalKingdom #Barry4kids

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Dulce Rodrigues
   
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