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Car horns don't work quite how you might think.

Can honking at too much traffic actually deplete your car’s horn? The answer might surprise you.

Trying to navigate these roads is likely to give you more than a few gray hairs.

Yellowstone National Park dominates the map.

See which national parks people in the U.S. are most curious about.

A litmus test is an idiom for a challenge. But why?

When a politician, sports team, or anyone else faces a defining challenge, it's referred to as a “litmus test.” What's litmus, and why is it being tested?

These charming creations will make your home library feel all the more cozy.

If you collected Dragon Ball Z trading cards in the early 2000s, you could have a small fortune on your hands.

All five answers to the questions below have something in common. Can you figure it out?

There’s a good reason your parents probably freaked out when they found out you took a little joy ride on someone’s Harley.

The symbol for female (left) and male (right).

The ♂and ♀ symbols initially had nothing to do with representing human sex or gender.

Pollution played a factor in the rankings.

LawnStarter ranked 303 American cities against 20 factors grouped into four categories. How did your city (or the one nearest you) fare?

Its origins are unclear, but its awesomeness is undeniable.

Even non-metal fans know the look: the pinky and pointer finger stretch upwards while the thumb holds down the non-participating index and middle fingers. But where did “devil horns” actually come from?

From ‘Oblivious’ to ‘Residence Unaccompanied,’ these terms are synonyms of famous movie titles. How many can you get right?

Many pregnant people struggle with nausea and vomiting, especially during the first trimester.

Nausea and vomiting are the bane of many a pregnant person’s first trimester. And despite the name, the symptoms aren’t just limited to the morning.

Wildebeest go great distances each year.

Think your commute is bad? At least you don’t have to walk or swim from one end of the Earth to the other.

Teachers make a huge difference in the world.

Oklahoma is lagging behind compared to the rest of the nation.

Various fossils are being auctioned off, and they’re expected to fetch a fortune.

A few of the incredible prehistoric stone alignments at Carnac in France.

From the mysterious human-made structures at Bolivia’s Tiwanaku Archaeological Site to the prehistoric megaliths at Carnac in France, these rock formations inspire awe and curiosity.

‘Kryptos’ has intrigued amateur and professional cryptographers alike.

The CIA's encrypted art sculpture has puzzled cryptographers for decades. The man with the answers is finally ready to clue them in.

Birds like this western meadowlark are singing earlier in the morning and later at night thanks to light pollution.

Early birds are starting to sing even earlier because of artificial light pollution—but it’s not clear if they’re actually losing sleep.

Whales and dolphins aren’t just neighbors. They’re also occasional playmates, according to new findings from Griffith University researchers.

Find out what names Americans were giving their babies in the year 2000, and how they compare to today's most popular names.

This riddle dates back to the 19th century—can you figure out the answer?

Pripyat, part of the Chernobyl Exclusion Zone.

These Atomic Age sites—some of which are still dangerously radioactive—are a somber reminder of the dark shadow the threat of nuclear war cast on the world.

This may not give you the best reading of your body composition.

Body comp scales claim to measure how much fat and muscle you have, but they may not give an accurate picture of health. Here’s why.

Do Cars Ever Run Out of Honk?

The World’s 25 Most Stressful Intersections

Map Shows Most-Searched National Parks by State

Why Is It Called a “Litmus Test”?

How Book Nooks Bring Magic Little Worlds to Your Bookshelves

6 of the Most Valuable Dragon Ball Z Cards

What‘s the Kennection? #181

Why Motorcycles Are the Most Dangerous Mode of Transportation

The Surprising Origins of the Male and Female Symbols

The 25 Dirtiest Cities in America, Mapped

The Mystifying Origins of Heavy Metal’s ‘Devil Horns’

Quiz: Can You Guess the Movie Title Based on a Synonym?

Why Is It Called “Morning Sickness” If It Can Last All Day?

11 Amazingly Long Animal Migrations

How Teacher Salaries Stack Up on Average Across the U.S.

The Skull of a Fearsome Ice Age Predator Is Headed to Auction

7 Amazing Rock Formations That Could Rival Stonehenge

The Artist Behind the CIA’s Famous “Kryptos” Puzzle Is Ready to Reveal the Solution—But There’s a Catch

Light Pollution Tricks Birds Into Singing Earlier in the Morning and Later at Night

Study Reveals Surprising Dynamic Between Whales and Dolphins

Mapped: Each State’s Most Popular Baby Names From 25 Years Ago

Can You Solve This Old-Timey Riddle? #52

12 of the Creepiest Nuclear Sites on Earth

Why Body Composition Scales Aren’t the Best Way to Measure Fitness