Animals - Trivia, Quizzes, and Brain Teasers | Mental Floss

6 Animals That Are Rapidly Evolving

When competition moved in, Florida's native green lizards evolved to become stickier.

6 Animals That Are Rapidly Evolving

Treat Your Favorite Pet to 50 Percent Off Costumes and Treats During Chewy’s Halloween Sale

FRISCO/Chewy

Treat Your Favorite Pet to 50 Percent Off Costumes and Treats During Chewy’s Halloween Sale

If You've Always Imagined What 'Bohemian Rhapsody' Would Sound Like If Sung By Cats, Wonder No More

101cats/iStock via Getty Images

If You've Always Imagined What 'Bohemian Rhapsody' Would Sound Like If Sung By Cats, Wonder No More

Australia Is Vaccinating Hundreds of Its Koalas Against Chlamydia

Hot vaxxed summer?

Australia Is Vaccinating Hundreds of Its Koalas Against Chlamydia

Watching Elephants Smash Giant Pumpkins Is Incredibly Satisfying

Elephant smashing a pumpkin at the Taronga Zoo in Sydney, Australia, in 2015.

Why Do Dogs Drool?

Not all dogs drool, but when they do, bring a towel.

Good Moos: Cow Tipping Is a Myth

Cows aren't easily toppled.

The Mysterious Disappearance of Masterpiece the Poodle

To this day, no one knows what happened to Masterpiece.

8 Types of Imaginary Creatures 'Discovered' In Fossils

It’s easy to see how people could have confused this elephant skull for the remains of a giant Greek monster.

This Quiz Will Help You Pick the Perfect Halloween Costume for Your Pet

Ted Lassie.

A Shot in the Dark: How to Photograph a Black Cat

Black cats require a special approach when it comes to photography.

Watching 15 Common Insects Fly in Slow Motion Is Fascinating and Kind of Terrifying

A hover fly living up to its name on a thistle.

20 Cool Facts About the Ice Age

An illustration of a woolly mammoth, blissfully unaware of its species impending doom.

Meet Mr. Goxx, a Crypto-Trading Hamster Who Is Out-Investing Warren Buffet

This is not Mr. Goxx, but it's close enough.

Gigantic Joro Spiders Have Invaded Georgia—Here’s Why They Might Be Welcome Guests

A Joro spider snacking on a grasshopper.

River Otters Are Attacking People in Alaska, and Experts Don't Know Why

This is the scariest photo of a river otter we could find.