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

What’s the Difference Between a Turtle and a Tortoise?

A green turtle, not a green tortoise.

What’s the Difference Between a Turtle and a Tortoise?

Meet the Tongue-Eating Louse, Which Does Exactly What You Think It Does

A tongue-eating parasite is just one of the many charming wonders of nature.

Meet the Tongue-Eating Louse, Which Does Exactly What You Think It Does

What Exactly Is a Nor’easter?

National Environmental Satellite, Data, and Information Service (NESDIS), NOAA

What Exactly Is a Nor’easter?

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

7 Scientific Mysteries

Mykyta Dolmatov // iStock via Getty Images Plus

See Venus, Saturn, and Jupiter Align on Thanksgiving

Three planets over the La Silla Observatory in Chile.

Australia Is Vaccinating Hundreds of Its Koalas Against Chlamydia

Hot vaxxed summer?

20 Cool Facts About the Ice Age

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

6 Scientific Explanations for Ghosts

Are you being haunted, or just dealing with a mold problem?

Just How Deep Is the Ocean? Watch and See

Bobbing along on the bottom of the beautiful briny sea is often easier said than done.

Bloody Mary: Why We Think We See Ghosts in Mirrors

iStock

8 of the Biggest Tsunamis in History

jcrosemann/iStock via Getty Images

10 Hispanic Scientists You Didn’t Learn About In School

Ellen Ochoa, Wikimedia Commons // Public Domain

Your Baby's Poop May Be Full of Microplastics

Plastics are being found in baby poop.

12 Disappearing Glaciers Around the World

Calving is one way that glaciers lose ice.

12 Out-of-This-World Facts About Carl Sagan

Hulton Archive/Getty Images