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Why Do Your Pupils Get Bigger in the Dark?
We believe you’ll find today’s Wonder of the Day quite eye-opening!
Why Do Your Pupils Get Bigger in the Dark?
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Why Do Your Lungs Burn When You Run in the Cold?
Today’s Wonder of the Day explores why cold air can make your lungs feel like they’re on fire!
Why Do Your Lungs Burn When You Run in the Cold?