Extras
    
These frogs can have up to TEN back legs.
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E35
                
            
            
                
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                  2:42
                
            
          
        The plant Hydnora africana is a parasite that smells foul...
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E28
                
            
            
                
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                  4:05
                
            
          
        A new technology could make diseases like Zika a thing of the past. But should we use it?
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S1
                
            
            
                
                  E40
                
            
            
                
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                  5:35
                
            
          
        Hate going to the dentist? Keep the millions of microbes in your mouth happy.
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S1
                
            
            
                
                  E39
                
            
            
                
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                  3:23
                
            
          
        You can make glow-in-the-dark slime with common household items—and learn some really cool
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S1
                
            
            
                
                  E35
                
            
            
                
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                  2:54
                
            
          
        Bird poop could help clouds form, keeping our planet a little bit cooler. Gross!
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E21
                
            
            
                
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                  3:49
                
            
          
        Santa's reindeer just got a whole lot more interesting.
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E22
                
            
            
                
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                  4:26
                
            
          
        Meet the most versatile butts in the animal kingdom.
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E23
                
            
            
                
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                  3:13
                
            
          
        It's called the "Wood Wide Web."
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E24
                
            
            
                
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                  4:08
                
            
          
        Ant language sounds wacky—and can be hacked.
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E17
                
            
            
                
                  | 
                
            
            
                
                  3:15
                
            
          
        
                
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                            Gross Science Season 2
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These frogs can have up to TEN back legs.
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E35
                
            
            
                
                  | 
                
            
            
                
                  2:42
                
            
          
        The plant Hydnora africana is a parasite that smells foul...
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E28
                
            
            
                
                  | 
                
            
            
                
                  4:05
                
            
          
        A new technology could make diseases like Zika a thing of the past. But should we use it?
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S1
                
            
            
                
                  E40
                
            
            
                
                  | 
                
            
            
                
                  5:35
                
            
          
        Hate going to the dentist? Keep the millions of microbes in your mouth happy.
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S1
                
            
            
                
                  E39
                
            
            
                
                  | 
                
            
            
                
                  3:23
                
            
          
        You can make glow-in-the-dark slime with common household items—and learn some really cool
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S1
                
            
            
                
                  E35
                
            
            
                
                  | 
                
            
            
                
                  2:54
                
            
          
        Bird poop could help clouds form, keeping our planet a little bit cooler. Gross!
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E21
                
            
            
                
                  | 
                
            
            
                
                  3:49
                
            
          
        Santa's reindeer just got a whole lot more interesting.
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E22
                
            
            
                
                  | 
                
            
            
                
                  4:26
                
            
          
        Meet the most versatile butts in the animal kingdom.
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E23
                
            
            
                
                  | 
                
            
            
                
                  3:13
                
            
          
        It's called the "Wood Wide Web."
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E24
                
            
            
                
                  | 
                
            
            
                
                  4:08
                
            
          
        Ant language sounds wacky—and can be hacked.
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S2
                
            
            
                
                  E17
                
            
            
                
                  | 
                
            
            
                
                  3:15
                
            
          
         
 
 
 
 
 
 
 
 
 
 
 
