Sharks are known for their sharp, pointed teeth, but did you know that they can have up to 50 rows of teeth at a time
                        
 
                    
                
                 
                     
                 
            
        
        
            
                
                
            
               
                      
                        
                        
                            Elephants have the longest teeth of any animal, with their tusks growing up to 9 feet (3 meters) in length.
                        
 
                    
                
                 
                     
                 
            
        
        
            
                
                
            
               
                      
                        
                        
                            Dogs have a set of baby teeth and a set of permanent teeth, just like humans.
                        
 
                    
                
                 
                     
                 
            
        
        
            
                
                
            
               
                      
                        
                        
                            Hippopotamuses have large, sharp incisors that they use for biting and fighting, but they also have a set of molars at the back of their mouth
                        
 
                    
                
                 
                     
                 
            
        
        
            
                
                
            
               
                      
                        
                        
                            Sloths have a set of long, curved claws that they use for climbing, but they also have small, peg-like teeth that are perfect for grinding up leaves
                        
 
                    
                
                 
                     
                 
            
        
        
            
                
                
            
               
                      
                        
                        
                            Some animals, such as beavers and rodents, have continuously growing incisors that they must constantly wear down by gnawing on hard materials.
                        
 
                    
                
                 
                     
                 
            
        
        
            
                
                
            
               
                      
                        
                        
                            The narwhal, a type of whale, has a long, spiral tusk that grows out of its head. These tusks can be up to 9 feet (3 meters)
                        
 
                    
                
                 
                     
                 
            
        
    
    
        
            
            
        
      
			
				
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