With a simple premise of the critical thinking question “Why?”, the Happy Dragon series answers Science questions in everyday environment with colorful and interesting short comics.

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2026 Happy Dragon 100K Whys subscription (10 books; Jan'26 till Oct'26)
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2026 Happy Dragon 100K Whys subscription (10 books; Jan’26 till Oct’26)

Original price was: $98.00.Current price is: $78.00. Add to cart
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Happy Dragon Bundle #18
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Happy Dragon Bundle #18

Original price was: $47.50.Current price is: $29.50. Add to cart
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Happy Dragon Bundle #17
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Happy Dragon Bundle #17

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Happy Dragon Bundle #14
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Happy Dragon Bundle #14

Original price was: $47.50.Current price is: $29.50. Add to cart
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Happy Dragon Bundle #13
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Happy Dragon Bundle #13

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#90 - Why Do Sumo Wrestlers Have Large Bodies?
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#90 – Why Do Sumo Wrestlers Have Large Bodies?

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#89 - Why Do Sausages Have A Casing?
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#89 – Why Do Sausages Have A Casing?

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#88 - Why Is An Octopus's 'Head' So Big?
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#88 – Why Is An Octopus’s ‘Head’ So Big?

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#87 - Why Are Gummy Candies Stretchy?
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#87 – Why Are Gummy Candies Stretchy?

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#86 - Why Do Fart Smell?
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#86 – Why Do Fart Smell?

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#85 - Why Can Dried Cow Dung Be Used As Fuel?
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#85 – Why Can Dried Cow Dung Be Used As Fuel?

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#84 - Why Do Firecrackers Explode When Lit?
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#84 – Why Do Firecrackers Explode When Lit?

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#83 - Why Should We Not Eat Too Much Candy?
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#83 – Why Should We Not Eat Too Much Candy?

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#82 - Why Do Fruit-Flavoured Candies Taste Like Fruit Even Though They Contain None?
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#82 – Why Do Fruit-Flavoured Candies Taste Like Fruit Even Though They Contain None?

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#81 - Why Should We Not Eat Too Much Fried Food?
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#81 – Why Should We Not Eat Too Much Fried Food?

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#80 - Why Do We Need To Wear A Mask When We Have A Cold?
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#80 – Why Do We Need To Wear A Mask When We Have A Cold?

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#78 - Why Do Robots Move?
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#78 – Why Do Robots Move?

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#77 - Why Does Candyfloss Look Big But Feel So Light?
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#77 – Why Does Candyfloss Look Big But Feel So Light?

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#76 - Why Is A Music Box Able To Produce Music?
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#76 – Why Is A Music Box Able To Produce Music?

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#75 - Why Are Elephants Unable To Jump?
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#75 – Why Are Elephants Unable To Jump?

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#73 - Why Do We Burp After Drinking Soda?
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#73 – Why Do We Burp After Drinking Soda?

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#72 - Why Should We Not Drink Too Much Bubble Tea?
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#72 – Why Should We Not Drink Too Much Bubble Tea?

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#71 - Why Do Faeces Smell So Bad?
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#71 – Why Do Faeces Smell So Bad?

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#70 - Why Does The Durian Have A Pungent Smell?
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#70 – Why Does The Durian Have A Pungent Smell?

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#69 - Why Do Babies Cry At Birth?
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#69 – Why Do Babies Cry At Birth?

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#68 - Why Do We Feel Dizzy After A Roller Coaster Ride?
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#68 – Why Do We Feel Dizzy After A Roller Coaster Ride?

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#67 - Why Is The Moon So Bright?
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#67 – Why Is The Moon So Bright?

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#66 - Why Do Some Eggs Have Double Yolks?
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#66 – Why Do Some Eggs Have Double Yolks?

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#65 - Why Do We Feel Thirsty After Eating Ice Cream?
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#65 – Why Do We Feel Thirsty After Eating Ice Cream?

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#64 - Why Do Kissing Fish Kiss Each Other?
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#64 – Why Do Kissing Fish Kiss Each Other?

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#63 - Why Does The Frog Not Sink Into Water When It Sits On A Lily Pad?
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#63 – Why Does The Frog Not Sink Into Water When It Sits On A Lily Pad?

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#62 - Why Do Rabbits Eat Their Own Faeces?
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#62 – Why Do Rabbits Eat Their Own Faeces?

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#61 - Why Should We Not Drink Raw Milk?
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#61 – Why Should We Not Drink Raw Milk?

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#56 - Why are octopuses able to squeeze through a small hole?
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#56 – Why are octopuses able to squeeze through a small hole?

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#25 - Why do cut apples turn brown?
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#25 – Why do cut apples turn brown?

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#23 - Why is there a rustling sound when we undress?
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#23 – Why is there a rustling sound when we undress?

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#16 - Why don't geckos fall off the wall?
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#16 – Why don’t geckos fall off the wall?

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