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What Is the Oldest Species Living Today?
Today’s Wonder of the Day is brand new…and really, really old!
What Is the Oldest Species Living Today?
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Why Does Your Skin Get Wrinkly in Water?
Got a case of bath-time prune fingers you can’t seem to iron out? Head to Wonderopolis for the inside scoop on water wrinkles.
Why Does Your Skin Get Wrinkly in Water?
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Where Can Moss Grow?
A rolling stone will gather none of today's Wonder of the Day!
Where Can Moss Grow?