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100
sharks are like what animal
Like cats, sharks are naturally very curious animals. For this reason they are sometimes referred to as the cats of the sea. Unfortunately for other marine life, they don’t have paws to investigate a curious situation so they resort to bumping with their nose or using their mouth to go for a nibble.
100
what episode of a tv show had a person jumping over a shark on skis
In 1977 episode of happy days, Fonzie jumped over a shark while on water skis. The scene was so ridiculous that the term jumping the shark now refers to a television gimmick that is so strange, it can only mean that the writers are out of ideas.
100
what is there main source of hunting
Sharks are very capable hunters, largely due to their strong sense of smell. Some species of shark are capable of smelling as little as one part per million of blood in seawater. That’s basically a single drop of blood in an Olympic pool.
100
what are sharks more threatened by than anything else
Despite their reputation, sharks are more threatened by humans than the other way around. It’s estimated that over 100 million sharks are killed annually, targeted for their for fins which can fetch a hefty price tag.
100
how many species of river shark are there
There are five species of river shark that are known to live in large rivers, coastal bays, and estuaries. Unfortunately, these sharks are particularly vulnerable and many river sharks currently face extinction.
200
are shark attacks rare or common
Shark attacks are extremely rare, with more humans killed by falling coconuts than by sharks every year. If you ever do find yourself on the business end of a curious shark, experts suggest that you punch them in the nose and gills to scare them away.
200
how many teeth do most sharks lose in their lifetime if they use them at all
some sharks continuously grow teeth as they frequently as they fall out as they hunt. It’s estimated that certain species of sharks will go through 35,000 individual teeth in their lifetime
200
how long has a great white shark been in captivity
The Great White Shark has never been successfully kept in captivity. The longest a Great White has ever lived in captivity is 5 weeks. I guess these giants can’t be contained.
200
what do sharks use to stay position in water
Unlike most species of fish which use swim bladders to stay buoyant, sharks use forward movement to maintain their vertical position in the water. This means that just like an airplane, if a shark stops moving forward it sinks to the ground.
200
what is neck and neck with sharks at the food chain
Many sharks are the apex predator of their environment, meaning they are at the top of the food chain. Not all sharks are this lucky, such as the Great White, which is hunted by the orca whale.
300
are sharks older than dinosaurs
Did you know that sharks are much older than dinosaurs? Dinosaurs didn’t appear until roughly 230 million years ago. Sharks on the other hand have been occupying our oceans for the last 450 million years!
300
what is the fastest shark in the world
The Shortfin Mako Shark is the fastest shark in the world, reaching speeds up to 75 mph. Unfortunately for them, this has made the Shortfin Mako one of the most sought after gamefish in the world.
300
what kept making sharks disappear in a aquarium in seattle
An aquarium in Seattle once had a problem with disappearing sharks. The owners of the aquarium had no idea where the sharks were going, until they put a camera in the tank. A giant octopus was responsible for capturing and eating the sharks!
300
do sharks have ears
Just because you can’t see a shark’s ears, that doesn’t mean they don’t have them! Sharks have internal ears that provide them with a very keen sense of hearing, and are able to hear sounds at a much lower frequency than humans.
300
what are sharks bones made of
Unlike most fish, Sharks don’t have a skeleton made of bones and instead consist of cartilage and other connective tissue. This makes them extremely flexible and agile in the water but there are some drawbacks. A shark doesn’t have a rib cage, and because of this a shark could be crushed under its own weight if placed on land.
400
where is the most amount of sharks located out of all the oceans
There is an area of the Pacific Ocean just north of San Francisco that accounts for 38% of recorded shark attacks on humans. This is actually how the nearby San Jose Sharks hockey club got their name!
400
what shark movie was very popular that created fear about shark attacks
The 1975 film Jaws was so popular that it created widespread fear about shark attacks. The author of the book, Peter Benchley, regretted this outcome and has since become an outspoken activist for shark conservation.
400
what is the deepest living shark
the deepest living known species of shark is the portuguese dogfish shark. This small shark is known to occupy territory as deep as 3675 meters below sea level, almost 9 empire state buildings.
400
where did the origin of the word shark come from
The origin of the word shark is somewhat unclear. Some speculate that the word shark is derived from the German word Schork, which refers to a dishonest person who takes advantage of others.
400
how do sharks have babies
Most sharks lay eggs, however some give birth to live young. It is not uncommon for these sharks to practice sibling cannibalism, where the bigger sibling will eat the smaller ones in the womb.
500
sharks have eyelids so do they blink?
Although sharks have eyelids, they never blink.
500
what is the texture of shark skin
Sharkskin is a strange texture. If you stroke the surface of a shark’s skin from front to back it’s totally smooth. If you stroke it the other way, it’s very rough, a similar texture to sand paper. However this property can be advantageous in some situations. In ancient Japan shark skin was commonly used on the handle of swords to provide samurais with a reliable grip.
500
what is the biggest shark in the world
The Whale Shark is the largest species of fish. The largest Whale Shark measured in at 41 feet long and over 21 tons. Lucky for us, Whale Sharks are friendly!
500
how do sharks breathe
In order to breath, sharks must keep water running through their gills. Because of this, some sharks have been known to sleep swim. When a shark sleep swims, the shark is fully unconscious but continues to travel through the water.
500
are sharks dangerous to humans
Contrary to popular belief, sharks are not particularly dangerous to humans. There are over 400 species of shark, but only one in ten species are known to pose any threat to humans.
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