Sharks, Denizens of the Deep Part 2 Quiz

Answer: 3 1/2 - 5 feet

There are approximately 500 species of sharks in the world, and about 80% of these are smaller than the average person.

Answer: between 75 - 100

Sharks attack fewer than 100 people a year, and probably less than 20 of these attacks are fatal. On the other hand, people kill over a hundred million sharks every year.

Answer: False

Most shark attacks occur close to shore, with about 62% of them occurring in water less than 5 feet deep. This makes sense because it is in water near the coast that recreational swimmers have the best possibility of encountering a shark.

Answer: 'swallow whole'

A 'hit and run' attack is thought by many experts to be a case of mistaken identity. In these cases the victim is quickly released and injuries do not tend to be too severe. A 'bump and bite' attack is a more serious behaviour in which the shark circles and bumps the victim a few times before biting repeatedly. A 'bite and spit' attack is one that has been observed with great white sharks. The shark delivers an initial large bite, which often proves fatal, and then spits its victim out before coming back to feed. It is believed that this behaviour allows the shark to get out of the way of the thrashing of a fatally wounded prey, thus minimizing the chance that it will be injured.

There have been some reports of a teacher being swallowed whole by a Great White Shark but this is extremely rare and has not been scientifically proven.

Answer: Higapok shark

The Federovis catshark is from the catshark family, while the harlequin catshark is from the finback catshark family. The Pondicherry shark is a requiem shark and the higapok shark is my son's creation.

Answer: True

And if either of these events actually does occur to you, the lightning strike is five times more likely to kill you than the shark bite is.

Answer: All of these.

All of these are good advice if you don't want to encounter a shark. Sharks can be attracted to blood and other kinds of body fluids, are more active at night, and are more likely to avoid large, noisy groups of divers.

Answer: True

The spined pygmy shark is the smallest shark in the world. It grows to an average length of 7 inches, eats squid and prefers to live in deep waters. The whale shark is the largest shark in the world and has been know to grow as big as 46 feet. It is a non-aggressive, filter feeder which means that it lives on plankton and small fish.

Answer: True

The upper jaw mechanism detaches and thrusts forward when the shark lunges. This detachment helps make the shark's bite all that more powerful.

Answer: All of these.

This method has been used in areas of Australia, New Zealand and South Africa. When serviced regularly, the nets are very effective at keeping sharks from swimmers. Unfortunately many sharks and other marine animals become entangled in the nets and die.

Answer: True

The swellshark, which prefers to live near reefs, will wedge itself into rock crevices or other narrow hiding places, and then expand in size to the point where its predator cannot get it out of its narrow confines.

Answer: Blue Shark

Although the blue shark is on the list of dangerous sharks that have been known to attack divers, it is less likely to attack than the other three choices.

Answer: The Shark POD

The Shark Chaser was used used during WW II by Allied personnel, but it wasn't very effective. The Shark POD (Protective Oceanic Device) emits a strong electrical field around a diver which repels sharks. It is usually very effective, but is not completely successful in detering larger sharks when they're in feeding mode.

Answer: False

'Bruce' was three feet longer than the largest Great White ever recorded, and his teeth were enlarged to make him appear fiercer.

Answer: All of these.

Sharks are becoming more and more threatened by the actions of humans. Whether it's through overfishing for food or shark products, the pollution of areas that are ideal for shark nurseries, or the deliberate eradication of dangerous species, many species of sharks face bleak long term survival rates.