Shark Attack!
Who was the young Australian who was attacked by a shark?
Rodney Fox
Are shark attacks common or rare?
Rare
What is one of the most popular methods to protect swimmers from attacks?
Shark net (fencing)
What is a shark's skeleton made of?
Cartilage
What is one reason many species are being threatened with extinction?
Overfishing
Why did Rodney design and build the first shark cage?
Competing in a spearfishing championship
Out of 350 different species of sharks, what 3 are really dangerous?
Bull shark, tiger shark, great white shark
Why are electrical beach barriers effective against shark attacks?
Sharks won't swim through strong electric currents
The "lateral line" helps a shark...
Sense very small vibrations in the water
Why are sharks being killed in huge numbers now?
Modern fishing methods
What type of shark attacked Rodney Fox?
A great white shark
What type of water do sharks prefer?
What is one way to avoid a shark attack?
**Many answers accepted (see page 25)
What does the ampullae of Lorenzini allow a shark to do?
What is one of the most valuable shark products?
The liver; oil from the liver
What is the weakest spot on a shark's body?
Its eyes
Why are more people surviving shark attacks?
Modern transportation and medical care
Why didn't the chemical shark repellent invented during World War II work?
It melted too quickly
Since shark skin is made up of tiny tooth-like scales, it used to be used for what?
Smooth down surfaces like sandpaper is used today
Squaline, a chemical found in the liver and stomach of the dogfish shark, has been found to do what?
Slow down the growth of tumors in people.
What part(s) of Rodney's body was damaged from the attack?
His rib cage, lungs, and the upper part of his stomach.
Why might a shark attack a human?
-They feel threatened
-Fishermen carrying bloody fish
-Mistaken identity (they look like food = seal)
What material did Valerie and Ron Taylor use to develop their new idea?
Chain-mail (stainless steel rings like suits of armor)
How far can sharks smell blood in the water?
**Hint: How do you avoid a shark attack?
1 mile
What prevents sharks from getting sick often?
Highly developed immune system