Neuticles are synthetic testicles for neutered pets. The tagline: "It's like nothing ever changed."
Marine snow is made of just about anything—except water.
"That's a crooked tree. We'll send him to Washington."
Norwegian researchers think chronic fatigue syndrome may be caused by antibodies produced to fight off infection.
These ships still sail the seas, supposedly.
Thanks to a law passed in 1976, our nation's first president—who died more than 200 years ago—is still the military's highest-ranking official.
From a new book by the American Museum of Natural History.
They say that Disneyland is the happiest place on earth, but man’s best friend would probably enjoy frolicking on Dog Mountain a little bit more.
Snail mail doesn’t sound thrilling, but the United States Postal Service is anything but boring. Here are a few facts about the letter carriers in your life.
The hotter it is, the more likely bearded dragons are to hatch female—regardless of their chromosomal compositions.
Here are a few women of (bank)note who made history.
French startup Drawn is raising money on Kickstarter to bring its plastic printed furniture to the rest of the world.
This 1960s guide breaks it down.
©2016 Mental Floss, Inc. All rights reserved. Mental Floss® is a registered trademark owned by Felix Dennis. mentalfloss.com is a trademark owned by Felix Dennis.