A quick shark trivia quiz for you to enjoy. Ten questions about sharks with strange and unusual shark facts you may never have heard.

1. What
do you
know?
IP Factly's Shark Trivia Quiz

2. 1. True or False?
The first sharks swam the oceans 200 million years
before dinosaurs even existed.

3. 1. True.

4. 2. Attacks from which sharks forced U.S. submarines back to
base in both the 1970's and 1980's?
a. Bull shark
b. Great white shark
c. Cookiecutter shark

5. 2. Cookiecutter Shark
They nibbled at sonar domes in the
1970's and electric cables in the 80's,
forcing engineers to add fibreglass
coating on both occasions.

6. 3. Which of the following makes a sound like a barking dog?
a. Swell shark
b. Bloater shark
c. Plump shark
Image credit: Clark Anderson Aquaimage CC BY-SA 2.5

7. 3. Swell Shark
When they feel threatened, swell
sharks gulp in water, or if they're at the
surface, air, to swell up and make
themselves look bigger. It's the sound
of the shark letting out the air that
sounds like a dog barking.

8. 4. True or False?
The oldest known species of shark is called the ruffled shark.
Image Credit: Citron CC BY SA 3.0
Image Credit: Citron CC

9. 4. False.
It's called a frilled shark, and is a rarely
seen ancient shark that's unique
appearance may be behind the myth of
sea serpents.

10. 5. Which of these is a shark with poisonous flesh?
a. Newfoundland shark
b. Greenland shark
c. Iceland shark
Image Credit: NOAA Okeanos Explorer 2013

11. 5. Greenland shark.
The Greenland shark's flesh is a
delicacy among some peoples of the
Arctic region. Its flesh has to be boiled
and re-boiled to get rid of the toxins.

12. 6. True or False?
Sharks can sense electromagnetic fields.
Image Credit: Citron CC

13. 6. True.
Sharks have a few bonus senses. One
of them is the ability to sense
electromagnetic fields. They have small
pores on their snouts, snappily
called ampullae of Lorenzini, which
are electroreceptors. The hammerhead,
in particular, is known for its ability to
seek out hidden prey, making full use
of all the receptors on its bizarrely
wide snout.

14. 7. Which species of shark was spotted swimming through
Aussie streets during the 2011 Brisbane flood?
a. Bull shark
b. Tiger shark
c. Great white shark

15. 7. Bull shark.
Bull sharks can survive in both fresh
water and sea water. When Brisbane,
Australia flooded in 2011 the bull
sharks just kept on swimming - it just
so happened some of them ended up
near Brisbane's shopping centre.

16. 8. 6. True True or or False?
False?
The The Cookiecutter Cookiecutter shark shark eats eats its its own own teeth.
teeth.
Image Credit: NOAA
Image Credit: Citron CC

17. 8. True.
Every time the cookiecutter shark
loses a tooth it replaces the whole row
of gnashers with new ones. That's
expensive in terms of raw-materials.
To help with the costs, it swallows its
teeth - so it can re-use the calcium to
make new ones.

18. 9. Which of these is a species of shark discovered off the coast of
Japan in 1897?
a. Gnome shark
b. Gremlin shark
c. Goblin shark Image Credit: Mistukurina_owstoni_museum_victoria_-
_head_detail by Dianne Bray Museum Victoria

19. 9. Goblin shark.
The goblin shark, named after its
hideous looks, has a long snout
covered in ampullae of Lorenzini. The
electroreceptors are used to search
out prey in dark, deep water.
When catching fish, its jaw springs
forward, extending out to grab the
prey.

20. 10. Which of these sharks eats its siblings while still in the womb?
a. Caribbean reef shark
b. Sand tiger shark
c. Leopard shark
Image Credit: UShaka Sea World 1079-a CC BY 3.0 Amada44

21. 10. Sand tiger shark.
A sand tiger shark in the womb will eat
their own egg, then hunts out other eggs
to eat and will finally move on to snacking
on their younger siblings. By the time the
baby shark is born it is already 3 feet (1
meter) long.

22. How did you do?
Better than a sand
tiger shark's
brother hopefully!
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