AMAZING FACTS
BIG QUESTIONS
ENTERTAINMENT
ENTERTAINMENT
#TBT
MOVIES
MUSIC
POP CULTURE
TV
HISTORY
HISTORY
ARCHAEOLOGY
BAD OLD DAYS WITH A.J. JACOBS
BIOGRAPHIES
KING TUT
TITANIC
WOMEN'S HISTORY MONTH
LISTS
LISTS
BOOKS
FOOD
LANGUAGE
WORDS
LIVE SMARTER
LIVE SMARTER
HEALTH
SMART SHOPPING
TRAVEL
HACKS
FUN
QUIZZES
QUIZZES
KENNECTIONS WITH KEN JENNINGS
BRAINTEASERS
SCIENCE
SCIENCE
ANIMALS
ENVIRONMENT
SPACE
ALL STORIES
NEWSLETTER
AMAZING FACTS
BIG QUESTIONS
ENTERTAINMENT
ENTERTAINMENT
#TBT
MOVIES
MUSIC
POP CULTURE
TV
HISTORY
HISTORY
ARCHAEOLOGY
BAD OLD DAYS WITH A.J. JACOBS
BIOGRAPHIES
KING TUT
TITANIC
WOMEN'S HISTORY MONTH
LISTS
LISTS
BOOKS
FOOD
LANGUAGE
WORDS
LIVE SMARTER
LIVE SMARTER
HEALTH
SMART SHOPPING
TRAVEL
HACKS
FUN
QUIZZES
QUIZZES
KENNECTIONS WITH KEN JENNINGS
BRAINTEASERS
SCIENCE
SCIENCE
ANIMALS
ENVIRONMENT
SPACE
ALL STORIES
NEWSLETTER
BOOKS
11 Fascinating Facts About Louisa May Alcott’s ‘Little Women’
INTERNET
Find Your Next Favorite Book, Movie, Band, and More with This New Media Recommendation Tool
WEIRD
This Italian Island Is Giving Away Free Goats
ANIMALS
7 Pairs of Commonly Confused Animals—And How to Tell the Difference
THIS JUST IN
Jazz Up Your Vocabulary With Mental Floss’s 2025 Word Nerd Desk Calendar
BIG QUESTIONS
Why Do Some Birds Sing, While Others Caw?
Pop Culture
10 Fantastic Fictional Foxes
The Real People and Events Mentioned in 11 Hit Songs
LANGUAGE
1
‘What Hath God Wrought’: The Biblical Phrase That Made Scientific History
2
20 Colorful Slang Terms From Olympic Sports
3
What Do A.M. and P.M. Stand For?
4
2000s Slang: 30 Amazeballs Terms You Should Know
5
The Origins of 11 Funny Animal-Related Sayings
HISTORY
SEE MORE
14 Very Valuable Coins That May Be Sitting In Your Coin Jar
A Sherlock Holmes Story Handwritten by Sir Arthur Conan Doyle Could Net $1.2 Million at Auction
This Interactive ‘Doctor Who’ Map of London Reveals All the Places the Time Lord Has Traveled
10 Things About Old Telephones That Might Confuse Young People
ENTERTAINMENT
SEE MORE
Why Are Michigan’s Bottle Deposits So High?
How Stephen King’s Wife Saved ‘Carrie’ and Helped Launch His Career
All 26 Members of the ‘Saturday Night Live’ Five-Timers Club
10 Intriguing ‘Friends’ Fan Theories
FEATURES
The Legend of London’s Time-Traveling Tomb
The Princes in the Tower: British Royal History’s Most Tantalizing Murder Mystery
Leona Libby, the Pioneering Nuclear Physicist Who Helped Build the Atomic Bomb
BIG QUESTIONS
SEE MORE
Did William Henry Harrison Really Die of Pneumonia?
Why Do Cats Follow You to the Bathroom?
Should You Keep Your Pets Indoors During a Solar Eclipse?
Does Febreze Really “Trap” Bad Odors?