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Scientists Risk Their Lives To Uncover The Mysteries Of The Great White Triangle

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Great White Triangle

Until recently, divers hoping to catch a glimpse of great whites in the wild had to rely on immobile shark cages lowered into the water off the side of a boat.

So one professional diver and guide, Lawrence Groth, built what he calls a "shark cage on crack." The Pelagic Explorer is a shark cage with engine-powered propellers that enables divers to more closely study and photograph great whites.

In a Discovery Channel Shark Week special, "Great White Triangle," the vessel's first few launches are documented as it's deployed in a large patch of open ocean off of North America's western coast called the Great White Triangle — a somewhat mysterious place popular with great white sharks for reasons scientists do not fully understand.

To this day, scientists don't know why great whites migrate between the three points of the triangle: the Farallon Islands off the coast of San Francisco, the Guadalupe Islands off the Coast of Baja California, and a section in the Pacific near Hawaii called White Shark Cafe. One study suggested that sharks might be heading to White Shark Cafe to find mates, but observing great whites in their natural habitat continues to be a hurdle.

That's largely because apart from being big, fast-swimming carnivores with 3,000 sharp teeth, they also frequently dive to depths of 1,000 feet, and have been recorded at depths of 4,000 feet.

New technologies, like mobile shark cages and satellite-enabled tracking devices, allows researchers to get up-close to sharks and study their behavior over long periods of time.

The job doesn't come without risk, as you can see in the full episode below. Things get real around the 9:00-mark when the cable lowering the cage into the water unexpectedly snaps:

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These Ten Shark Species Have The Weirdest Names

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Lamna_nasus_hooked2

Happy Shark Week!

In honor of the One True American Holiday (all other holidays are less true, due to lower shark content), I spent about an hour reading about sharks on Wikipedia.

Important findings from a solid morning's research: sharks often have weird names.

For example: the birdbeak dogfish. That's a real animal! Ditto the flaccid catshark and, perhaps weirdest of all, the porbeagle, which doesn't sound like a fish at all.

This article originally appeared on PopularScience.com August 14, 2012.

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Dumb Gulper Shark

The dumb gulper shark (Centrophorus harrissoni), also known as the dumb shark or Harrison's dogfish, is an extremely rare deepwater shark native to the areas around Australia and New Zealand. It's wildly overfished for its meat and its liver oil and its population may have decreased by 99% since the 1970s.



Birdbeak Dogfish

The birdbeak dogfish, Deania calcea, lives in both the Atlantic and Pacific Oceans, mostly in the seas around Japan, southern Australia, New Zealand, and western Africa. It is listed as being harmless to humans.



Tasseled Wobbegong

Wobbegongs can also be called carpet sharks. But why would you ever call something a carpet shark when you've been given the opportunity to say "wobbegong"? (The word means "shaggy beard" in an Aboriginal Australian language.)

Related: wobbegongs are often eaten in Australia. If you order a fish and chips there, there's a pretty good chance you're actually having a wobbegong and chips.



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This 1970s Documentary Is The Best Shark Movie You've Probably Never Seen

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blue water white death

The history of shark movies is littered with some good, some bad and some very ugly films. BeforeSharknado, before Open Water, even before Jaws, there was Blue Water, White Death, which may just be the greatest shark movie ever made.

Released in 1971, the documentary follows a group of divers on a seven-month round-the-world adventure, a quest to be the first to film the great white shark from underwater.

It is an epic tale of adventure on the high seas and well worth tracking down.

The movie’s cast of characters is a who’s who of subaquatic greats. Producer Peter Gimbel, the heir to the Gimbel’s department store fortune, was the first man to dive on the wreck of the Andrea Doria the day after she sank to 160 feet in the Atlantic in 1956. Ron and Valerie Taylor were champion Australian freedivers. Stan Waterman was, and still is, a legendary underwater cameraman (he oversaw shooting for 1977’s The Deep).

Rodney Fox was a famous white shark attack survivor. Peter Mathiessen, the National Book Award winning author, was the film’s historian and wrote an excellent book about the journey called Blue Meridian. Hell, they even had a folk singer, Tom Chapin, on the crew to serenade them.

More than merely a shark film, this movie is a chronicle of a great adventure. These people weren’t scientists. They just built some shark cages, bought a pile of dive and underwater camera gear and chartered a boat to take them from South Africa to Madagascar to Sri Lanka (then Ceylon) to Australia in search of the “last great predator on Earth”, as Gimbel called the great white shark. The journey was fraught with frustration, disappointment and danger. On one dive, one of the cameramen was swept out to sea by a strong current and the crew spent anxious minutes searching for him among the whitecaps. Off of Sri Lanka, Gimbel himself was beset with the bends after surfacing too quickly following a deep dive. And this is to say nothing of their shark encounters, which are still thrilling to watch 42 years later.

The movie has that great grainy warmth and dry narration so common in documentaries from its era. Chapin’s soundtrack of folk songs and acoustic guitar is pure ‘70s comfort music. Sure, some of the scenes feel suspiciously scripted and some footage of harpooning whales is uncomfortable to watch. But this all must be taken in the context of the era in which it was made.

The diving footage is ample and spectacular, with enough historical diving gear to make any Sea Hunt fan happy — Jetfins, rubber wetsuits, DOXA dive watches and Aqualung regulators. Gimbel and crew were on the leading edge of underwater filming and shark research. No one before them had dived in open water next to feeding sharks, nor had anyone filmed great whites from a cage underwater. These guys had massive cojones. Splashing in off of a Zodiac next to a whale carcass surrounded by 100 oceanic whitetips at 2 a.m.?

Blue Water, White Death still stands the test of time and, frankly, blows away anything shown on Discovery Channel’s Shark Week. While the movie can be found on Youtube in relatively low quality, copies of the movie can sometimes be had on DVD, though finding it can be as epic a hunt as tracking down the great white shark was for the crew of the movie.

GP DOES SHARK WEEK, BETTER: 

To Catch a Tiger | Want to Dive with Sharks? | Kit: Diving the Bahamas

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13 Brands That Shamelessly Tweeted About Shark Week

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wendy's shark week twitter

"Shark Week" might be over, but many brands — and not just The Discovery Channel — took advantage of the celebrated TV phenomenon.

It's almost impossible for a socially active company to resist piggybacking onto any news event's buzz. Just look at what happened when the royal baby was born. 

Here are the good, the bad, and the corny ways advertisers tried to turn "Shark Week" into a brand-relevant social event. Shockingly, Oreo didn't get in on the fun.

Volkswagen

VW wasn't jumping on a bandwagon — the car company was a major "Shark Week" sponsor. It even turned a VW Beetle convertible into an underwater shark cage. Here's what Volkswagen tweeted:

Airbus

Airbus drew shark teeth on its aircraft to celebrate:

Tide

The blood-stain remover bought this promoted tweet:

The Weather Channel

This promoted tweet explains how Sharknados might happen:

Audi

Owned by Volkwagen Group, Audi got in the action too:

Doritos

A shark fin does look suspiciously like a Doritos chip:

Trident

Intel

We don't suggest doing this with your laptop:

MOMA

Even the fine art world can't stay away:

Klondike

Wendy's

The burger bites back:

K'NEX

Making everyone's childhood dream come true:

Red Bull 

Could have tried harder:

Did you have a favorite?

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Shark Week Is Back And It's Weirder Than Ever [THE BRIEF]

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One of the year's best weeks of TV, Shark Week, kicks off soon and to celebrate, the Discovery Channel created this strangely epic 30-second spot. The ad features a man riding on two sharks as he throws chum from his satchel-like bucket into the air. There's a mermaid resting seductively at his feet and a slew of jumping sharks. What more could you possibly want? This year's Shark Week begins August 10.   

Procter & Gamble will no longer use the titles marketing director and associate marketing director. The company will now refer to these employees as brand director and associate brand director, Ad Age reports.  

British Airways created a happiness blanket using portable neurosensors that change colors depending on when a flier is happy and when a flier is anxious or angry. According to Bloomberg Businessweek, the blankets were created to help the airline improve its in-flight services.

Fox Television Group Stations is one step closer to being the first network owned station to not use Nielsen ratings and use Rentrak's rating services instead. Fox's contract with Nielsen expires toady.

Friday's World Cup match between the U.S. and Germany became the third most-watched men's World Cup game on ESPN, Media Post reports. ESPN had 10.7 million viewers, a high number especially considering the game was in the afternoon during typical working hours.

A woman claims that a Dexter ad in Grand Central Terminal scared her, causing her to fall down the stairs, break her ankle, and suffer from a concussion. The woman has named Showtime and the Manhattan Transportation Authority in her law suit along with the City of New York, Adweek reports. 

Google is looking to do a test run of some native advertising through a widget, which Digiday says will include links to content and ads 

Adidas is already removing Uruguay World Cup squad member Luis Suarez from its campaigns following his biting incident and four-month suspension from soccer. 

Previously on Business Insider Advertising: 

 

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Researchers Made A Shark-Stalking Robot — Then The Sharks Turned On It

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Last November, scientists from Woods Hole Oceanographic Institution's Ocean Systems Laboratory took an autonomous shark-stalking robot to Guadalupe, Mexico to track and film great white sharks. Two weeks ago, they released the footage, and it looks as though the stalker became the stalkee.

The REMUS (Remote Environmental Monitoring UnitS) — or "SharkCam," as it was christened for its Discovery Channel Shark Week debut next week — is a torpedo shaped vehicle with six cameras implanted to capture different angles. Once scientists attach a acoustic tag to the shark, which sends out sound pings, REMUS is able to follow those pings.

This is REMUS SharkCam:SharkCam5 This is what SharkCam typically sees when stalking a shark (the footage below is actually from Cape Cod, Massachusetts back in 2012): SharkCam3But this is what it saw at Guadeloupe this time around:SharkCam1Oh yeah, and this: SharkCam 2 Turns out, the shark stalking robot may itself have finally become prey.

"Sharks take advantage of the clear water to lurk in the darkness below the vehicle, then swim up suddenly and bite it on the tail or mid-section," according to the video, posted to Vimeo by the Woods Hole Oceanographic Institute. "This is the same way sharks hunt seals near Guadalupe Island."

Luckily, the shark tracking vehicle survived the attacks and recorded dozens of interactions, giving scientists their first closeups of great white shark predation, according to the video. The footage shows us "the majesty and grace of the ocean's top predator in its natural environment," the video says.

The footage and full story, filmed by Big Wave Productions, will appear on Discovery Channel's Shark Week which starts August 10. For more shark-tastic antics, check out the full footage below:

REMUS SharkCam: The hunter and the hunted from Woods Hole Oceanographic Inst. on Vimeo.

SEE ALSO: 10 Insane Things That Happen When A Diver Descends 400 Feet On A Single Breath

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Researchers Made A Shark-Stalking Robot — Then The Sharks Turned On It

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Last November, scientists from Woods Hole Oceanographic Institution's Ocean Systems Laboratory took an autonomous shark-stalking robot to Guadalupe, Mexico, to track and film great white sharks. Two weeks ago, they released the footage, and it looks as though the stalker became the stalkee.

The REMUS (Remote Environmental Monitoring UnitS) — or "SharkCam," as it was christened for its Discovery Channel Shark Week debut next week — is a torpedo-shaped vehicle with six cameras implanted to capture different angles. Once scientists attach an acoustic tag to the shark, which sends out sound pings, REMUS is able to follow those pings.

This is REMUS SharkCam:SharkCam5 This is what SharkCam typically sees when stalking a shark (the footage below is actually from Cape Cod, Massachusetts, back in 2012): SharkCam3But this is what it saw at Guadaloupe this time around:SharkCam1Oh yeah, and this: SharkCam 2 Turns out, the shark-stalking robot may itself have finally become prey.

"Sharks take advantage of the clear water to lurk in the darkness below the vehicle, then swim up suddenly and bite it on the tail or mid-section," according to the video, posted to Vimeo by the Woods Hole Oceanographic Institute. "This is the same way sharks hunt seals near Guadalupe Island."

Luckily, the shark-tracking vehicle survived the attacks and recorded dozens of interactions, giving scientists their first closeups of great white shark predation, according to the video. The footage shows us "the majesty and grace of the ocean's top predator in its natural environment," the video says.

The footage and full story, filmed by Big Wave Productions, will appear on Discovery Channel's Shark Week, which starts Sunday. For more shark-tastic antics, check out the full footage below:

REMUS SharkCam: The hunter and the hunted from Woods Hole Oceanographic Inst. on Vimeo.

SEE ALSO: 10 Insane Things That Happen When A Diver Descends 400 Feet On A Single Breath

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Discovery Is Becoming More And More Ridiculous With Its Fake Documentaries

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Megalodon lives evidence

Despite widespread backlash over fake documentaries, supposedly educational networks are turning to them more and more in efforts to net viewers and in the process are making people dumber.

Last year's two-hour special on Discovery, called "Megalodon: The Monster Shark Lives,"convinced 70% of viewers that the giant prehistoric shark still existed even as outraged scientists insisted that the show was ludicrous and almost entirely fictional. It didn't help that Discovery made coy comments about the documentary being a legitimate contribution to scientific debate.

This summer, Discovery followed it up with "Megalodon: The New Evidence," which became the highest-rated episode of Shark Week with 4.8 million viewers.

The network recently also aired a fabricated documentary called "Shark of Darkness: Wrath of Submarine" and reportedly lied to scientists to get them to appear in another documentary, "Voodoo Sharks."

The similarly bunk "Russian Yeti: The Killer Lives" aired on the channel in early June. The special follows a filmmaker as he researches footage apparently showing the deaths of nine hikers killed in 1959, but perhaps the bigger mystery is how the doomed hikers got access to a high-quality digital camcorder in the late '50s.

SharksDiscovery-owned channel Animal Planet has aired two other fake documentaries in recent years — replete with actors, fabricated events, CGI, and faked footage— which explore the apparently scientific evidence for mermaids.

Although Animal Planet admitted in a subsequent press release that its "documentary" was science-fiction, the show presented itself as rigorously scientific.

Many viewers seem to take them at their word, with children being especially vulnerable to deception.

Despite mermaids being neither real animals nor existing on the planet, 3.6 million viewers watched the latest mermaid special, breaking all records for the channel.

Not to be outdone in the field of fake science, The History Channel has also joined the trend of undermining its credibility, airing programs like "Nostradamus Effect,""Ancient Aliens," and "UFO Hunters" in recent years.

History Channel BSEach documentary, across all the networks, inevitably contains X-Files-like references to cover-ups and official denials. 

Faking It

From mermaids to monster sharks, the Discovery Channel's fakes tend to follow a cookie cutter formula.

Megalodon uses amateur footage, news reports of fatal attacks, and several interviews with shark experts to make its case. The crew bases its narrative on the research of marine biologist Collin Drake as he travels the world speaking about the shark and gathering evidence.

But while the shark itself was real — swimming the oceans two million years ago — the same cannot be said for anything else in the special.

The documentaries show "found footage" from a fatal attack off the South African coast that apparently left three people dead. It's fake; no such attacks took place.

Megalodon

The documentaries show news reports from "3 News" in South Africa. It's fake; no such channel exists.

Megalodon

The documentaries air photos from the Second World War showing the fin and tail of the shark next to a German U-boat.

Megalodon

This image is an altered still from a historical video, which we tracked down online.Megalodon altered footage

An internet search for the world-renowned marine biologist Collin Drake only finds references to the documentary …

Megalodon

… but IMDB reveals that he's actually the slightly less qualified actor Darron Meyer, although he did play a doctor in a 2010 sequel to "Free Willy."

IMDB shotsThe documentaries contain no disclaimers to inform viewers they're watching fiction, though some brief text shown at the start acknowledges that one or two scenes may have been "dramatized"— quite the understatement, unlikely to be of use to children, and totally useless to anyone who starts mid-show.

The shark expert David Shiffman told National Geographic:"Discovery is a joke, with the megalodon fiasco only being a confirmation of what has been clear for some time."

But despite many viewers (and scientists) voicing their anger at the Discovery Channel, the network stands by its fabrication.

Claiming there was legitimate scientific debate, the Shark Week producer Michael Sorensen told Fox News: "The stories have been out there for years, and with 95% of the ocean unexplored, who really knows?"

Marine biologists seem to know, and they haven't been quiet about it.

Schiffman told National Geographic:"Discovery bills itself as the premier science education television station in the world, and they're perpetuating this utter nonsense."

Indeed, much to the Discovery Channel's disappointment, every expert who has commented on either documentary agrees the Megalodon went extinct roughly 1.5 million years ago.

If there were any actual scientific debate, the Discovery Channel probably wouldn't have needed to doctor footage, fake news reports, and pay actors to play "scientific experts."

Business Insider reached out to History and Discovery for comment on these criticisms but did not receive a response.

SEE ALSO: Top Countries Ranked In Reading, Science, And Math

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Watch a giant great white shark charge a film crew

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A film crew in New Zealand had a blood-racing encounter with a great white shark as they were sitting in their inflatable dinghy.

They were gathering footage for a documentary called Lair of the Megashark, which aired on the Discovery Channel last year.

The 20-foot-long (6-meter-long) shark is seen circling the boat and then charging. It also has a good go at nibbling the front of the boat.

great white shark v. boat

One nervous voice can be heard saying: "It's a little nerve-wracking being in a boat no bigger than the size of the shark. The shark is actually bigger than our boat."

While another opinion on the matter can be heard: "I don't think this is such a brilliant f****** idea you know. I don't think we can have a boat in there. I really don't."

There is some speculation that the shark's behavior is a conditioned response to being fed food from boats.

This is a byproduct of the cage-diving industry, which will sometimes use bait and chum to lure sharks close to the boat so that cage divers can get a thrilling experience.

Stories abound from locals who claim that this invasive behavior wasn't present in the sharks a decade ago. The majestic beasts are becoming quite comfortable around boats and have been known to chomp buoys, bump into the boats and steal the catch of the day.

However, experts, including the Department of Conservation's director, Allan Munn, aren't all convinced that it's the cage divers that are prompting this behavior in the sharks. Munn commented that it's "highly unlikely" that the shark-diving industry has had an effect on shark activity and noted that "sharks have been coming into the area since time immemorial."

UP NEXT: Adorable pocket shark caught for only the second time ever

SEE ALSO: Why we’re so fascinated by shark attacks even though they hardly ever happen

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NOW WATCH: The ultimate underwater selfie must include a shark

There's an unstoppable reason for the recent surge in shark attacks

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Shark

More than half a dozen shark attacks have happened in North Carolina in the last three weeks — nearly as many as happened all of last year.

Experts say this summer is brewing up something of a perfect storm for the attacks. But while they seem like they're everywhere, shark populations are actually dwindling.

And the real reason there have been so many attacks likely isn't because there are more sharks in the water — it's because there are more people swimming in it than ever before.

Shark expert George Burgess of the International Shark Attack File explained the trend in a recent NPR interview:

Shark populations in the US and around the world are at perhaps all-time lows. On the other hand, the human population continues to rise every year. We have no curbing of that.

And fundamentally [a] shark attack ... is driven by the number of humans in the water more than the number of sharks, and when areas such as the Carolinas become popular tourist destinations, as they have, there's [sic] more people entering the water. You're going to end up having more shark bites.

While a number of studies in recent decades have suggested that shark populations around the world are all declining sharply, it's hard for scientists to get exact numbers on them.

Nevertheless, by comparing recent population numbers with past data, we can get a general estimate of how sharks are doing across the globe, marine biologist and University of Miami graduate student David Shiffman explains in a recent post on his blog.

One frequently-cited survey of data published in 2003 from fisheries gathered between 1986 and 2000 suggests that shark populations are in deep trouble.

The data from that survey found that hammerhead populations were declining by an average of 89%; great whites by 79%; tiger sharks by 65%, thresher sharks by 80%, blue sharks by 60%, and mako sharks by 70%:

shark declines chart

"We may never know exactly how many sharks are out there, or exactly how many are killed each year. What we do know, from a variety of different types of analysis, is that many species of sharks are decreasing in population at alarming rates,"writes Shiffman.

Why are sharks in trouble?

While vigilante shark hunters can do significant damage to local shark populations, the real problem centers around two main activities: Hunting sharks for their meat and fins and irresponsible fishing practices. Each year, thousands of sharks are caught and trapped in fishing nets and other fishing gear.

And while it might seem like good news that there are fewer sharks around, it's actually a very big problem for the rest of us.

In many places, sharks are apex predators, meaning they occupy the spot right at the top of the food chain. If their populations aren't healthy and stable, it throws all of the other life in the oceans out of balance.

Plus, sharks have a bunch of characteristics that make them especially vulnerable to exploitation, including the fact that they live long lives, mature late in life, and have very few young.

UP NEXT: We went to see the tiny, super rare pocket shark whose 'pocket' remains a mystery to scientists

SEE ALSO: Here's how common shark attacks in the US actually are

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NOW WATCH: Punching a shark in the nose is not your best defense

10 mind-blowing facts about sharks

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Sharks near boat

This week marks a very important summer holiday observed by many who value exploration and risk-taking in order to triumph over the fear of the unknown.

No, I'm not talking about Independence Day in the United States. I'm talking about the pop culture phenomenon known as Shark Week, a week of entirely shark-based television shows on the Discovery Channel. This year marks the event's 28th installment, making Shark Week the longest running cable program in history.

So, why are we so obsessed with sharks? Perhaps we want to understand these creatures that are bigger, faster, and stronger than we are. Maybe our fascination with sharks reflects our desire to know more about the mostly uncharted ocean. By some metrics, we have explored even less of the Earth’s oceans than we have of outer space.

Geologists and oceanographers have mapped the entire ocean floor, but only to a resolution of 5 kilometers or about 3 miles. That means that in most areas of the sea floor, we can only see structures larger than 3 miles across. Anything smaller, like a potential shipwreck or deep blue marine habitat, remains unseen.

In space, we have a much more detailed picture of our planetary neighbors. NASA’s Magellan mission mapped 98% of Venus at a resolution of 100 meters. A full coverage map of Mars made by the Mars Odyssey spacecraft obtained similar resolution, while the European Space Agency has mapped ~60% of the Martian surface at 20 meters resolution. So, we may not be sure of the true extent of our universe, and we have yet to send probes outside of even our own solar system. However, in the areas of space that we have the technology to explore, we have made far more progress than in the depths of the ocean.

The deepest known part of the ocean, the Marianas Trench in the Pacific, reaches nearly 11,000 meters. The water pressure at the bottom of the Trench reaches over 1,000 times that at sea level or over 15,000 psi. Only three people have made it to the bottom of the Trench, including two engineers in 1960 and the movie producer James Cameron roughly 50 years later. In contrast, although humans have not traveled into space beyond the Moon, a mere 380,000 kilometers away, 12 people have made that trip.

Perhaps we look to sharks, the rulers of the deep, to tell us more about the uncharted depths where they can travel easily but we, and our probes, cannot. Since Shark Week has evolved from strictly factual documentaries to include lots of shark fan fiction, here are ten true and very interesting facts about sharks.

1. Sharks glide through water much like airplanes move through the air

Shark

A shark’s tail forces water to flow over its fins much like a propeller creates airflow over the wings of a plane. Their infamous dorsal fins are used for added stability.

2. Most species of shark won't drown if they stop moving

thresher shark tail water danger

Using the muscles around their mouths, ancient sharks could pump water over their gills so that oxygen could be absorbed. Present day sharks often breathe differently by instead using fast swimming motions to force water over their gills. When they want to stop to rest, they return to the muscle-based breathing method that doesn’t require motion. Although a few shark species don’t have strong enough muscles to revert to the more ancient breathing method, scientists have observed them taking breaks, although how they are dealing with such a strong dip in oxygen is unknown.

3. Sharks don't get cavities

shark teeth 1

Several shark species have teeth that are coated in fluoride thus helping their pearly whites stay strong and cavity-free.

4. Sharks have some of the largest fish brains

google street view shark

We usually think of a shark as a lone hunter prowling the ocean solo, but many are actually social creatures and travel in herds with established hierarchies.

5. Sharks can track their prey via their heartbeats

hammerhead shark

Sharks can track the electrical pulses associated with a heartbeat via electricity-sensing nodules on their noses called ampullae of Lorenzini.

6. Sharks don't actually like the taste of humans

Sharks near boat

If you are unlucky enough to be bit by a shark, the shark will not likely come back for a second taste when she or he realizes that you are not, in fact, a marine mammal.

7. You are more likely to be bitten by another person than by a shark

paddleboard sharks

You are even less likely to die from a shark bite than you are to be bitten. Of the 30 to 50 shark attacks reported each year, only 5 to 10 are fatal. So, while being bitten by a shark is rare, dying from a shark bite is even rarer.

8. The dens of goblin sharks are too deep for humans to explore

goblin ugly shark teeth

The pink, long-nosed goblin shark lives along continental shelves and underwater mountain ranges in dwellings more than 100 meters deep.

9. The largest known whale shark was longer than a four story house

Branson, whale shark

Whale sharks are the biggest living species of fish. The largest known whale shark was just over 40 feet long and 47,000 pounds.

10. Sharks are vulnerable

illegal shark fishing finning

Between 20-30% of shark species are believed to be close to extinction, mostly due to being hooked by accident at commercial fisheries.

Until next time, this is Sabrina Stierwalt with Everyday Einstein's Quick and Dirty Tips for helping you make sense of science. You can become a fan of Everyday Einstein on Facebook or follow me on Twitter, where I'm @QDTeinstein. If you have a question that you'd like to see on a future episode, send me an email at everydayeinstein@quickanddirtytips.com.

READ MORE: There's an unstoppable reason for the recent surge in shark attacks

SEE ALSO: We went to see the tiny, super rare pocket shark whose 'pocket' remains a mystery to scientists

Join the conversation about this story »

NOW WATCH: Punching a shark in the nose is not your best defense

Amazing footage of sharks swimming in scalding waters around a volcano is completely baffling scientists

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Brennan Phillips and some colleagues were recently on an expedition to Kavachi volcano, an active underwater volcano near the Solomon Islands in the South Pacific. But they weren't prepared for what they saw deep inside the volcanic crater:

Sharks!shark volcanoHammerheads and silky sharks, to be specific, contentedly swimming around despite the sizzling water temperatures and biting acidity.

Volcanic vents such as these can release fluids above 800 degrees Fahrenheit and have a similar acidity to vinegar, according to the Marine Education Society of Australasia.

"The idea of there being large animals like sharks hanging out and living inside the caldera of the volcano conflicts with what we know about Kavachi, which is that it erupts," Phillips, a biological oceanography Ph.D. student at the University of Rhode Island, says in a YouTube video.

This brings up some perplexing questions about what the animals do if the volcano decides to wake up:

"Do they leave?" Phillips asks. "Do they have some sign that it's about to erupt? Do they blow up sky-high in little bits?"

The volcano wasn't erupting when Phillips' team arrived, meaning it was safe to drop an 80-pound camera into the water to take a look around. After about an hour of recording, the team fished the camera out and watched the video.

First, the video showed some jellyfish, snappers, and small fish. Then, a hammerhead swam into view, and the scientists erupted in cheers. They also saw a cool-looking stingray.stingray volcanoWhy the sharks were hanging out inside an active volcano is a mystery, but one Phillips hopes to solve.

Check out the full video here:

SEE ALSO: 3 factors are brewing the perfect storm for shark attacks

NOW READ: There's an unstoppable reason for the recent surge in shark attacks

Join the conversation about this story »

NOW WATCH: Punching a shark in the nose is not your best defense

Shark biologist explains why shark attacks are happening more frequently — and how to avoid them

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shark

It’s the summer of the shark. Not only are the toothy creatures breaching our small screens during the 2015 installment of the week-long Discovery Channel series Shark Week, but the gilled animals are also swarming the eastern coast of the United States, which is where they’ve been caught attacking several beach-goers who dare step foot into the shark-infested waters.

International Business Times caught up with shark biologist Dr. Craig O’Connell, who is starring in the Shark Week episode “Shark Island,” to discuss the recent, grisly attacks off the shoreline of North Carolina.

The Shark Week star, whose episode premieres Sunday, shares how the recent attacks are comparable to the incidents that have occurred in Réunion Island, a French island in the middle of the Indian Ocean that has also endured a surge of shark attacks. O’Connell recently traveled to Réunion to investigate the cause behind the deadly events, while researching ways to prevent any more fatalities.

Check out our interview with the New York-native below to find out his take on the attacks and get tips on how to stay safe this summer from the majestic predators swimming in the surf:

International Business Times: I saw an early screener of the upcoming Shark Week episode “Shark Island” and my hands were sweating as you dove into the chum-infested, murky waters of the Indian Ocean. What was that like for you?

Dr. Craig O’Connell: It was intimidating. I’ve been diving in South Africa outside the cage with sharks and I even had a white shark eat a seal right above my head. But there’s something about Réunion Island that had added a little bit extra to the situation. It was murky water – you hear about the sudden increase in shark attacks and I was definitely nervous. I was very intimidated. There are some interesting things that go on when I’m down there.

IBTimes: After watching that Shark Week episode, I saw a lot of similarities between what happened off the coast of Réunion Island and what’s currently going on in North Carolina. Would you say we’re currently in a shark crisis right now with the surge in attacks?

O’Connell: I wouldn’t say we’re in a shark crisis because that’s something that might stir up a little hysteria, I think. I just think if you look at the previous decade of shark attacks in North Carolina there’s been about one in five per year. Right now there’s seven so we’re slightly above normal.

But you also have to think there are a lot of people going in the water right now, you have optimal conditions for these sharks to come near shore, so unfortunately a couple accidents did happen between sharks and swimmers and surfers. But I wouldn’t necessarily say it’s a shark crisis.

IBTimes: Were you shocked to hear about the various shark attacks in North Carolina?

O’Connell: I was a little bit shocked to hear about it – especially because they were so close together. It definitely is an interesting situation and, in fact, a very unique one. But it’s just something we need to be aware of and maybe a little bit more conscious of. Now we know there are sharks very close to shore and we have to take the proper precautions.

IBTimes: And what are those preventative measures?

O’Connell: There are a lot of things we can do to prevent them. First of all, we need to understand that the ocean is the shark’s environment. And so the second we step our feet into that environment, we are in their [territory]. So, we must be very conscious of that and once we take that into consideration we need to look at other things. Like it’s not very wise to go in the water early in the morning or late in the afternoon when the sharks are feeding more frequently. It’s not very wise to go in the water alone. It’s better to go with a group of people – this tends to keep sharks a little bit further away.

If you’re swimming off on your own, the shark's less intimidated. But if you create a lot of commotion in the water with your group – sharks generally are very shy animals and so they’ll tend to stay away. Not 100 percent, but it will reduce the likelihood of an encounter.

And if you do see a lot of bait around, a lot of fish – you see birds diving, this could be an indication that there are sharks in the area because where there’s prey, there’s usually the predators. If we see those particular things, it’s best not to go in the water.sharks

IBTimes: Do you know what’s causing the surge of shark attacks in North Carolina – what’s drawing them to that area?

O’Connell: We can’t necessarily say an exact thing. There are a lot of scientists saying that it could be a combination of variables and I agree with that. It could be the warmer temperatures in that area. It could because there was a recent drought condition, which makes it more favorable for the sharks to come closer into shore. You also have a lot of bait moving along the shoreline and you have the recent sea turtle hatchlings swimming along the shore. So those a three particular things that could contribute to the shark attack situation. But the other thing we need to recognize is that schools out – it was just one of the most popular times of the year to go to the beach, July fourth weekend, and so you have a lot of people going into the water. And if you have more people in the water you have an increase probability that there’s going to be an interaction with between a shark and a swimmer/surfer.

IBTimes: So it is currently turtle nesting season. How much longer does that last?

O’Connell: I couldn’t tell you specifically how long it’s going to last. But it’s something that is occurring and has occurred over the past few weeks. But I couldn’t tell you the duration of it. But it’s not just the sea turtles [that are attracting sharks]. We also have Menhaden that are coming along the shoreline, which is a very oily fish. They tend to swim in very, very big groups and sharks tend to follow them.

IBTimes: What would make a shark want to attack? Are these bites caused by curiosity? Or are these sharks looking for blood?

O’Connell: The only thing we need to understand about sharks is that they don’t have hands – and they are very curious. So, they tend to investigate things with their mouths and unfortunately, they have a really, really sharp set of teeth. And so, when we’re on the other side of that situation it could be quite devastative. So, yes curiosity could be one potential reason. But I think one of the key reasons why sharks may attack is just a case of mistaken identity. We’re talking about these sharks coming very close to shore, in very murky water where they can’t necessarily see their prey and they may mistake us for their prey and give us a little bit of a bite. And that’s when you have these unfortunate encounters. But I wouldn’t say they’re targeting people because if they were, the beach would be a very bloody place – and it’s not.

IBTimes: What should one do if they happen to find themselves face-to-face with a shark?

O’Connell: There are a lot of different methods of getting out of a shark attack and I can’t necessarily say which ones going to be better. But one of the best things to do is get out of the water as quickly as possible. People say you can punch the shark in the snout, eyes or gills – in their vulnerable locations – but I don’t have any specific evidence that that works. And so my answer to that is get out of the water as quickly as they can so they can stop the blood and you can get to the hospital.

IBTimes: Should we be fearful of sharks following these attacks?

O’Connell: I don’t think we should ever fear sharks – they’re beautiful animals and deserve our respect. But we should be weary of them. Right now in North Carolina we know they’re swimming along the shoreline and we have to understand that. It’s their territory and we should respect that. Maybe it’s not the best idea to go in the water at dawn or dusk. But I don’t think we should be absolutely fearful of these animals.

IBTimes: During the Shark Week episode “Shark Island,” you said that you were inspired by a previous Shark Week installment to help sharks and people coexist. Do you think “Shark Island” will do the same and inspire others?

O’Connell: Yeah, hopefully it will inspire some more people. This is why I have my passion today because Shark Week inspired me. So I’m hoping that episode will do the same exact thing for other children. Maybe they’ll see it and they’ll want to protect sharks and save sharks. That’s exactly why I think Shark Week exists – one of the key reasons because it’s inspiring people, promoting awareness and making people realize the beauty of these sharks.

IBTimes: I was wondering if you thought Shark Week was beneficial to sharks. Some critics say otherwise.

O’Connell: I think [Shark Week] promotes awareness -- especially this year they’ve taken a very good turn. They’re focusing on reality and focusing on a lot of new science. And this will inspire not only me, but also the community. Maybe some of these young children who are watching will want to protect sharks and become future ambassadors of the ocean. So I think [Shark Week] is very positive.

IBTimes: What are you most excited for fans to see on “Shark Island”?

O’Connell: I think it’s going to be exciting for people to see the novel ways that [the community of Réunion Island] is approaching the shark crisis. It’s not necessarily just technology – there are other things in that episode that the local community is doing to help prevent these shark attacks. And it was super exciting for me to see because I didn’t know it existed. And it think that’s something that people should really look forward to. Shark close up

IBTimes: I saw in that episode that some of the Réunion Island locals were responding very negatively to the shark attacks to the point where they wanted the animals to be killed. Do you foresee something like that happening in North Carolina?

O’Connell: I’ve heard, after the first several attacks, that the government was going to initiate a culland go out and kill some of the sharks that are responsible. And this, in my opinion, is a very short-sided approach. We saw this in Western Australia and I think it’s something that these governments should greatly reconsider. Because their concept is to kill these sharks to minimize the potential future interaction between sharks and swimmers and what we need to understand is the ocean is the sharks’ environment. And by killing these sharks to make it more convenient for us is completely disrespectful and saddening. And so I think we need to take a step back and think in long term. Because if we think in short term, we’re going to continue to remove these sharks from the environment and we might see an environmental catastrophe.

IBTimes: I heard the number of sharks has decreased significantly. Do you have statistics that bolster that?

O’Connell: What we can say from some of the published studies is that approximately 100 million sharks are being killed every year. And this to us is alarming because the reason being is that sharks have very few young, they grow really slow and they mature at a late age. So when you remove too many of them from the environment it’s very hard for their population to recover. So if you’re removing 100 million sharks from the environment that means the shark population isn’t doing well at all.

IBTimes: Do you know what type of shark was responsible for the attacks in North Carolina?

O’Connell: Sharks that frequent the coastline [in that area] are bull sharks, blacktip sharks and tiger sharks. And blacktips are responsible for a lot of attacks in Florida – just small bite wounds. So it’s possible its one of those three species that’s causing the attacks in the area. But we can’t necessarily say for certain because we don’t have firm evidence.

IBTimes: What do you think it would take to get people back in the water?

O’Connell: I think people need to pay attention to the risks. And maybe these conditions are going to dissipate over time. But give it a little bit of time these sharks are going to move and then the situation will get better in that area.

Shark Week's "Shark Island" will air on Sunday, July 12, at 8 p.m. EDT on Discovery Channel.

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Science says that watching some TV shows can make you a better person

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From Netflix to HBO to broadcast networks, we live in the age of too much TV. But maybe all that screen time isn't as bad as we think.

A new scientific study found that watching "award-winning TV dramas" can make you a better, more empathetic person.

Participants in the study watched dramas such as 'Mad Men,' 'The Good Wife,' and 'Lost.' Others watched non-fiction shows like "Shark Week." They were then shown 36 pairs of eyes and asked to identify the emotion in each pair.

Those who watched the fictionalized dramas did much better on the test.

So next time somebody tells your that TV melts you brain, don't listen.

Story by Ian Phillips and editing by Chelsea Pineda.

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These people spent a night in an underwater Airbnb surrounded by sharks

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shark airbnb

In late March, Airbnb announced it was raffling off a free night in an exclusive room available one time only: a circular pod submerged in a tank containing 35 sharks.

The stunt would take place in mid-April in the Aquarium of Paris. For one lucky couple from China, that night finally arrived. 

Wu Hao and Tang Di were the intrepid visitors. Here's what they saw.

To qualify for the event, entrants had to write a brief essay describing why they'd make a good fit. They also had to be in relatively good health and be at least 18 years old.



While there was a photographer on-hand, the winners were warned not to take selfies (as much as they may be tempted) because sharks can be sensitive to light.



Freediver and shark conservationist Fred Buyle served as the gracious host. He kicked off the evening by dancing with the sharks.



See the rest of the story at Business Insider

Two shark attack survivors faced their fears by swimming with sharks

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Two men who lost limbs in shark attacks agreed to face their fears and dive back into shark-infested waters. Now, their story will kick off a week of shark-themed programming for Discovery Channel's 28th annual Shark Week, ABC News reports

Hunter Treschl is a student who lost his left arm while wading in waist-deep water on vacation. Paul de Gelder is a former Australian Navy diver who lost both his right arm and right leg during a military exercise. (Since then, Gelder has become a motivational speaker and Discovery Channel's resident marine conservationist.) The two first met last summer, shortly after Treschl was attacked. 

A few months later, de Gelder invited Treschl to swim with sharks once again — this time inside a protective cage. The teen agreed, and Discovery caught the encounter on underwater camera.

"It was a bit kind of scary at first," Treschl said on Good Morning America. "But that was like maybe the first two or three minutes and after that I really began to appreciate like, wow, these are some really cool animals and getting to see them up close is really awesome.”

Their dive was part of a research project from expert Dr. Craig O'Connell, who's exploring the use of magnets as a shark repellent.  

"Sharks Among Us" airs tonight on the Discovery Channel at 10 pm eastern. Watch Treschl and de Gelder's entire interview with Good Morning America right here:

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Shark Week dropped its controversial Megalodon mockumentary — and fans are not happy

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megalodon shark week

On Sunday, the Discovery Channel's annual Shark Week kicked off — only this year, no controversial mockumentaries on the megalodon shark will be getting any air time.

Last year, Discovery Channel's new president Rich Ross had announced the removal of such dramatized programming, saying it wasn't "right" for the network. Instead, the channel was planning on leaning toward more real research. 

In 2013, Discovery Channel debuted Megalodon: The Monster Shark Lives, which was a fictional film about scientists researching the possible existence of the prehistoric and massive sea creature. The following year, Discovery Channel aired a sequel, Megalodon: The New Evidence. The fake documentaries were first introduced to the network as relief to the usually serious science material on the channel.

The mockumentary did begin and close with disclaimers about its fictionality, but it was still met with wide criticism for being misleading, therefore discrediting the network's reputation. "It was presented in such a way that you could very easily watch it and not know it was fictional," shark expert David Shiffman said, according to NPR. 

While some were upset when they found out that the documentary was entirely fictionalized, many others who found the mockumentaries entertaining are bummed that the fake hunt for the giant shark won't be broadcasted this year. 

After all, Megalodon: The Monster Shark Lives was Shark Week's highest-rated program.

 

 

 

 

 

 

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Why punching a shark in the nose is not your best defense

Nobody has ever seen a great white shark sleep until now

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Great white shark

Even the terrifying great white shark — the scariest fish in all the seven seas — drifts off to slumberland now and then. But, until recently, nobody had ever seen Jaws sleep.

Discovery Channel has shared a clip from one of the new shows in this year's Shark Week, "Jaws of the Deep," which includes the first-ever footage of a great white shark sleeping.

The shot, which was filmed by a robotic submersible, reveals that great whites never stop swimming even as they snooze. They slow down and cruise in a trance-like state, because if the shark ever stopped, water wouldn't pass through its gills and it would be unable to breathe. There are some species of sharks that can breathe without swimming, but the great white isn't one of them.

Check out the footage — which proves that not everyone looks like a perfect little angel when they sleep, below.

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Brave scientists just captured the first sonogram of shark pups wiggling in the womb

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Marine scientists just carried out what may be the bravest obstetrical exam ever, taking a sonogram of a 12.5 foot tiger shark. We first spotted this news over at Popular Science.

James Sulikowski, of the University of New England, along with collaborator Neil Hammerschlag of the University of Miami conducted the exam on a shark named Emily, in a region of the Bahamas where the species is common. The sonogram revealed that the shark was carrying 20 pups, complete with mouths full of teeth.

VR shark exam

In addition to capturing the best Facebook baby announcement photo of all time, this sonogram is groundbreaking for research on pregnant sharks. Until now, studying sharks in the womb involved cutting the expecting mother open, killing her in the process.

"Historically, if you wanted to see if a tiger shark is pregnant, you’d have to cut her up," Hammerschlag told Discovery, in a video about the sonogram. "We aren’t sacrificing humans to determine if they're pregnant. Why can't we do it for sharks?"

Discovery took some liberties and colored and outlined the shark fetuses, and it illustrates just how developed the little sharks are at that stage, about two thirds of the way through Emily's pregnancy.

Sharks run the gamut of methods for birthing their young, but most, including tiger sharks, are ovoviviparous, with eggs hatching within the mother before live birth. Some lay eggs externally, while others are linked to their gestating young via a placenta, much closer to pregnancy in mammals.

Shark tag

And this isn't the last they'll see of Emily. The researchers placed an acoustic and satellite tag on her dorsal fin so she can be monitored and tracked — hopefully to a common birthing area known as a "shark nursery" that conservationists can identify and protect.

Within a year, the tag will fall off and her fin will heal.

Check out the clip below from the program "Tiger Beach," part of Discovery Channel's ongoing Shark Week that runs until Sunday.

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