20 Amazing Facts About Sharks

Published by kizza boi
June 14, 2008, Category: Marine Biology

Facts about sharks.

Sharks can feel 1 part blood of an animal in 100 million parts of water
On average, sharks have killed less people than vending machines
90% of sharks have been killed by man
The dwarf shark is smaller than your hand
One big meal can keep a shark going for 3 months because it uses so little energy swimming
Sharks have been around for over 300 million years, even before dinosaurs
More people are killed by bee stings than sharks
Sharks attack more men then women; no one knows why
The longest shark teeth ever found are 6 inches long. They belonged to a Carcharodon Magaloden shark. This shark is extinct and lived 4.5 million years ago.
The swell shark, found in New Zealand barks like a dog
A Mako shark can travel at up to 60 MPH
A whale shark has more than 4,000 teeth
A shark can go through up to 1,000 sets of teeth during its life
Sharks never sleep; they just go “inactive” for a while although some sharks have to keep moving to breath
The weirdest thing ever found in a shark was medieval armour
The great white shark has jelly-filed canals in its head called “Ampullae’s of Lorenzini” which senses minute electrical discharges in the water. It detects tiny electric fields produced by animals, from heart beats to muscle contractions. Its Ampullae’s are so sensitive; it could pick up the faint electrical charge generated by 2 AAA batteries over 1000 miles apart.
A sharks smell is so acute, it can sense shrimp “odour” in the water
Epolet sharks are small and walk on the ocean floor
1/4 million gallons of water passes through the gills of a whale shark in an hour
A shark is the only fish that can blink in both eyes