25 Crazy Facts About Sharks You Can Sink Your Teeth Into

Posted by , Updated on August 11, 2014

Shares765Pin85
Cue the Jaws music. Like the Olympics, Shark Week 2012 has come and gone. Although  sharks may have a hard time distinguishing between friends and food, they’re still the kings of the ocean. In honor of Shark Week 2012, here are 25 crazy facts about sharks you can sink your teeth into.
25

Expensive Dental Bills

Shark-teeth

The average shark has 40-45 teeth and can have up to seven rows of replacement teeth. Because sharks lose a lot of teeth and grow them back quickly, they often go through more than 30,000 teeth in a lifetime.

24

Bad to the Bone

Shark-skeleton

Sharks do not have a single bone in their bodies. Their skeletons are made of cartilage.

23

Jam Packed

Hammerhead-shark

Hammerhead sharks are born with soft heads so they won’t jam their mothers’ birth canals.

22

Not Your Mama’s Cookies

Cookiecutter-shark-bite

The Cookiecutter shark’s name stemmed from its unusual feeding method. The sharks attaches its mouth onto its victim and carves out a hunk of flesh, leaving a circular wound in its prey that resembles the hole a pastry cutter forms in dough

21

Survival of the Fittest

Tiger-shark-pup

The first tiger shark pup to hatch inside its mother’s womb devours its unborn siblings until only two pups remain, one on each side of the womb.


20

Prehistoric

T-rex

Sharks inhabited the earth 200 million years before the dinosaurs appeared and have changed only minimally during that time.

19

It’s a Man’s World

Man-in-the-ocean

Despite the fact that an almost equal amount of men and women swim in the ocean, men account for nearly 90 percent of shark attack victims.

18

Stomachs of Steel

Box-of-nails

Shoes, chairs, boxes of nails, drums, entire bottles of wine, and the rear half of a horse are just some of the many bizarre objects that have been found in sharks’ stomachs over the years.

17

Knee Deep

Shallow-water1

About two-thirds of shark attacks on humans have occurred in less than six feet of water.

16

What are the Chances?

Lightning

About 30 people die during shark attacks each year, which means you have a greater chance of being killed by bee stings or struck dead by lightning.

15

Putting Things in Perspective

Group-of-sharks
For every human killed by a shark, two million sharks are killed by humans.
14

Cancer Cure

Scientist

Scientists study shark cartilage to research possible cures for cancer because sharks rarely ever develop cancer.

13

Whoa

Great-white-shark

A Great White shark weighing 2,664 pounds and measuring almost 17 feet in length was the largest fish ever caught with a rod and reel.

12

Adaptation

Bull-shark

Bull sharks can live in both salt and fresh water by regulating the substances in their blood.

11

Just Breathe

Shark-gills

Most sharks must swim constantly to force water through their mouths and over their gills because they lack the ability to pump water over their gills like the majority of fish.

10

From Miniature to Massive

Dwarf-lantern-shark

Measuring only seven inches long, the dwarf lantern shark is the smallest shark in existence. On the other hand, the whale shark is the world’s largest shark. It can grow to be 50 feet long and weigh more than 40,000 pounds.

9

Shark Repellant

Moses-sole

The Moses sole is one of the rare fish sharks cannot eat. When a shark bites into one, the fish releases a chemical that causes the shark release it. Scientists are currently attempting to recreate this chemical so they can use it to repel sharks from humans.

8

Straight as an Arrow

Great-white-shark-tooth

Native Americans in Florida used the teeth of Great White sharks as arrowheads.

7

All the Better to Hear You With

Hearing

A little known fact about sharks is that they have an acute sense of hearing. Some sharks can hear prey from up to 3,000 feet away.

6

It’s All in Your Head

Shark-ear

Sharks’ ears are located inside their heads.

5

Rumor Has It

ancient-shark

An ancient shark called Carcharodon Megalodon (“rough tooth, big tooth”) had teeth measuring more than six inches long (the largest shark teeth ever found), jaws big enough to swallow an entire car, and a body the same length as tyrannosaurus rex. Some believe this shark may still exist in deep water.

4

Not Picky Eaters

Tiger-shark1

The tiger shark is the second-most dangerous shark in the world and is sometimes referred to as the “garbage can of the sea” because it will eat anything. Remnants of a chicken coop filled with bones and feathers were once discovered in the stomach of a dead tiger shark.

3

Go Lay an Egg

Whale-shark

Whale sharks lay the largest eggs of any animal on land or in the sea. The largest whale shark egg on record measured 14 inches in diameter.

2

Shark Bait Ooh Ha Ha

Shark-attack

Some South Pacific islanders considered sharks to be gods and offered human sacrifices to them until as recently as the nineteenth century.

1

Thick Skinned

Shark-leather-shoes

Shoes made from shark leather last four times longer than regular leather shoes.

SEE ALSO: 25 Countries With The Highest Murder Rates In The World »

NOW WATCH: 25 Accidental Discoveries That You Should Be Thankful For

Subscribe to List25
Show Us Your Love
Join Over 2 Million+ List25 Fans