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    Deep Look
            Here’s How That Annoying Fly Dodges Your Swatter
                
                    
                        
                            Season 7
                        
                    
                    
                        
                            Episode 20
                        
                    
                
            
            
            A fly has a pair of tiny, dumbbell-shaped limbs called halteres that were once a second pair of wings. They wield them to make razor-sharp turns and land out of reach on your ceiling. But don't despair – there *is* a trick to smacking these infuriating insects.
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