Impossible Deep Sea Facts: Real or Fake?

The questions

All 10 questions in this quiz. Correct answers stay hidden until you finish.

1. 1

   The deepest part of the ocean, the Mariana Trench, is deeper than Mount Everest is tall.

   • Real
   • Fake
2. 2

   The vampire squid can turn itself inside out when threatened, revealing spiky inner flesh.

   • Real
   • Fake
3. 3

   The giant squid glows with its own bioluminescence in the pitch-black deep sea.

   • Real
   • Fake
4. 4

   An immortal jellyfish can reset its body to its baby form and theoretically live forever.

   • Real
   • Fake
5. 5

   Deep-sea hydrothermal vents can shoot water hot enough to melt solid steel beams.

   • Real
   • Fake

Score bands

Your final score places you in one of these bands.

Landlubber

The deep sea is still a mystery to you! Don't worry — most people barely know more about the ocean depths.

Beachgoer

You know some ocean trivia! But the deep sea still has plenty of secrets waiting for you.

Deep Diver

Impressive! You know more about the deep sea than most people. That curiosity is paying off.

Abyss Expert

Perfect score level! Your knowledge of the deep sea rivals a marine biologist.

How this quiz works

Each question has one correct answer. When you finish, you get your score and can review every question with the correct answer and, where we have one, a short explanation.