Mammals, reptiles, birds, amphibians and fish all have something in common - they all have a backbone. Here are the basics on each group.

 

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reptile
 
 
 
 
 

 

 

 

 

 

Test yourself with our
*NEW*
Classification Game!

 

 

 

 

 

 

 

 

 

 

 

 
 

Images by Jasmine Chapgar