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

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.

Just How Deep Is the Ocean? Watch and See

8 of the Biggest Tsunamis in History

jcrosemann/iStock via Getty Images

8 of the Biggest Tsunamis in History

Wally, the Wandering Walrus Last Seen in Ireland, Was Just Spotted in Iceland

Wally looking regal in Wales in May 2021.

Wally, the Wandering Walrus Last Seen in Ireland, Was Just Spotted in Iceland

The Loneliest Whale: Documentary Chronicles a Search for the 52 Hertz Whale

Scientists from the expedition tagging whales in the Santa Barbara Channel.

The Loneliest Whale: Documentary Chronicles a Search for the 52 Hertz Whale

12 Weird Lost-and-Found Items From Shipwrecks

Nearly 200-year-old champagne that someone drank.

5 Expert Tips for Surviving a Shark Attack

Paul de Gelder takes part in Shark Week 2019.

Jaws of St-eel: Snowflake Moray Eels Use Their Extendable Jaws to Swallow Prey on Land

"What can your jaws do?"

Massacre on the Mary Russell: When a 19th-Century Ship Captain Murdered His Crew

Something wicked this way comes.

What Would Actually Happen If You Drank Saltwater?

Your body will not thank you.

11 Facts About Ernest Hemingway’s The Old Man And The Sea

istock (background) / Scribner (cover)

How the Full Worm Moon Helped Free the Stuck Ship in the Suez Canal

The Ever Given shortly after being dislodged in the Suez Canal.

12 Surprising Facts About Manatees

A West Indian manatee in Florida

A Walrus Was Spotted In Ireland for the Very First Time After Falling Asleep on an Iceberg

SeppFriedhuber/iStock via Getty Images

This Magical Hidden Beach in Mexico Was Uncovered by Military Bombs

Christian Frausto Bernal, Wikimedia Commons // CC BY-SA 2.0

Sea Cucumbers on One Coral Reef Drop Several Eiffel Towers’ Worth of Poop Each Year—and That’s a Good Thing

To be clear, this is the sea cucumber.

Sew Your Own Designs Onto This Compostable Phone Case

Pela Case