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Are Swordfish Fierce Fighters?

En garde! Today’s Wonder of the Day features a fish that’s ready to fight!

#2238

Are Swordfish Fierce Fighters?
Why Do Dogs Like Bones?

If you’re a good boy or girl who joins us in Wonderopolis today, you might earn a treat!

#2148

Why Do Dogs Like Bones?
Do Squirrels Make Good Pets?

Today’s Wonder of the Day features an animal you’d have to be nuts to keep as a pet!

#2123

Do Squirrels Make Good Pets?
Who Invented Gears?

Today’s Wonder of the Day really kicks things into high gear!

#2070

Who Invented Gears?
What’s So Funny about Laughing Gas?

Today’s Wonder of the Day is no laughing matter!

#2016

What’s So Funny about Laughing Gas?
How Can You Tell How Old Animals Are?

Today’s Wonder of the Day might have you saying “Happy Birthday!” to everything from aardvarks to zebras!

#1939

How Can You Tell How Old Animals Are?
Why Didn’t People Smile in Old Photos?

Today’s Wonder of the Day is sure to put a smile on your face…we hope!

#1899

Why Didn’t People Smile in Old Photos?
How Does a Sawfish Use Its Saw?

Today’s Wonder of the Day features an aquatic creature that cuts through the water with ease!

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How Does a Sawfish Use Its Saw?
What’s the Difference Between a Crocodile and an Alligator?

After a while, we believe today’s Wonder of the Day will have you saying, “See you later!”

#1747

What’s the Difference Between a Crocodile and an Alligator?
Why Are They Called Killer Whales?

You might want to think twice before swimming with today’s Wonder of the Day!

#1651

Why Are They Called Killer Whales?
What’s the Difference Between a Dentist and an Orthodontist?

Today’s Wonder of the Day features two people who love to see you smile!

#1633

What’s the Difference Between a Dentist and an Orthodontist?
How Do Our Teeth Become Sensitive?

You’ll really want to sink your teeth into today’s Wonder of the Day!

#1628

How Do Our Teeth Become Sensitive?
What Is a Root Canal?

Today’s Wonder of the Day gets to the root of a toothy problem!

#1623

What Is a Root Canal?
When Was the Toothbrush Invented?

Today’s Wonder of the Day will help make your smile bright and white!

#1618

When Was the Toothbrush Invented?
Where Do Leeches Live?

Today’s Wonder of the Day will really stick with you!

#1631

Where Do Leeches Live?
Do You Ever Play Possum?

Today’s Wonder of the Day is sound asleep…or is it?

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Do You Ever Play Possum?
Why Do Rabbits Have Such Big Teeth?

Today’s Wonder of the Day will really give you something to chew on!

#1490

Why Do Rabbits Have Such Big Teeth?
What Is in Toothpaste?

Today’s Wonder of the Day is sure to make your smile brighter!

#1315

What Is in Toothpaste?
What Makes Your Teeth Whiter?

Today’s Wonder of the Day is sure to make you smile!

#1248

What Makes Your Teeth Whiter?
How Many Teeth Do Sharks Have?

Today’s Wonder of the Day may leave you WONDERing why you don’t see more toothbrushes in the ocean!

#1244

How Many Teeth Do Sharks Have?

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