Shark FAQ 7

How do sharks know when something is food or not?

Studies have proved that shark senses are fully responsible for shark hunting.

They commonly use the electrosense for location, even at long distances.

The lateral line sense detects water vibrations usual to most living things.(see left)

The smell and hearing are also used for confirmation, leaving the sight sense the last check when a prey is going to be hunt.

After all these sensorial scanning, sharks sometime even test their food if it is not familiar for them.

Shark Facts

1.Sharks have been around for about 400 million years - long before dinosaurs even existed.
2.Sharks have the most powerful jaws on the planet.
3.Sharks never run out of teeth - when one is lost another spins forward from the rows of backup teeth.
4.A shark may use over 20,000 teeth during its life.
5.The Great White Shark rarely partakes in feeding frenzies.
6.Sharks will often eat other sharks.
7.A sharks skeleton is made of cartilage, allowing greater flexibility.
8.A sharks skin is made of denticles - similar to thousands of small shark teeth.
9.The most harmless sharks tend to be the largest, such as the Basking Shark, the Whale Shark and the Megamouth Shark.
10.There are only about 100 Shark attacks on humans each year, resulting in about 10 deaths.

that's all for today, more facts soon :)