The Biggest Sharks in the World: Nightmares Beneath the Waves
The World's Biggest Sharks
Big sharks are fascinating. On television, anyway. When we're in the ocean, maybe not so much.
If you enjoy snorkeling you know the thrill of spotting different species of fish and other marine wildlife. If you’re lucky you might see a sea turtle, a big octopus or some other interesting critter down there.
But if you start thinking about sharks while you’re in the water, it probably won’t be long until you find yourself getting a little anxious, and not much longer still until you decide you’re awfully thirsty and it might be a good time to head to shore for a cool drink.
Little sharks are fun, but big sharks, well, they can do bad things to us wimpy humans.
Every summer there are a few reports of shark attacks at beaches, and every year people seem shocked. Here are the facts: Sharks live in the water, and when people go in the water they become a potential food source for sharks.
Sharks attack humans for the same reason sharks do anything: because they are trying to survive.
Still, shark attacks are not common, and if you head to the beach your chances of getting chomped aren’t very high. Most sharks, especially those close to shore, aren’t big enough to threaten you. But there are some monsters in the sea, the stuff of nightmares and legends, and when these sharks come around you’d better get back to the beach and get in some time lying in the sun.
Big sharks are out there, and to them you are simply lunch.
What Is the Biggest Shark in the World Today?
The whale shark is the largest shark in the world today and the biggest fish in the seas. They grow to a maximum length of over 40 feet, though commonly reach lengths of 18 - 32 feet and a weight of around 20 tons.
Although whale sharks are huge they pose little danger to humans. They are filter feeders, meaning their diets consist mostly of tiny plankton. Whale sharks swim around with their huge mouths open, taking in huge gulps of water and any tiny creatures that are swimming in it.
5 Dangerous Sharks
Though the whale shark is technically the largest shark in the world at a presumed maximum length of around fifty feet. However, the whale shark is a filter feeder, and unless you are plankton you have nothing to fear from this goliath. The same can be said for the basking shark, a huge animal capable of reaching lengths up to 40 feet.
These are not the creatures that keep us awake the night before our trip to the beach, but a predator of similar size did once roam the oceans of the world. The megalodon shark was the size of a whale shark or bigger and possessed the predatory nature of a great white.
Thankfully, megalodon went extinct thousands of years ago. But there are still some beasts out there that can ruin your day.
Here are a few of the biggest and scariest sharks in the water.
1. Great White Shark
Thanks to the movie Jaws, many of us will forever hear those two piano notes any time we venture into the ocean. The movie was a fictional exaggeration, but the great white is indeed a shark worth fearing.
At maximum documented lengths of over twenty-one feet, with some researchers believing they are capable of reaching over thirty feet, the great white is the apex predator of the sea. Most great white attacks are said to be a case of mistaken identity, as their main prey items are marine mammals, but that usually doesn’t make the person who has been bitten feel a whole lot better.
2. Tiger Shark
Perhaps even more dangerous than the great white, the tiger shark is known to prey upon anything from seabirds to dolphins. Frequently hunting near shore where humans swim, a relatively large percentage of tiger shark attacks result in fatalities compared to great whites.
Tigers commonly reach lengths similar to the white shark, and some researchers believe the largest specimens can reach up to twenty-five feet. If that's true it might make us wonder if someone had written a novel about a killer Tiger Shark that this beast may be the one we fear most, instead of the Great White.
3. Bull Shark
Unlike most other shark species, the bull shark can do well in fresh and brackish waters as well as marine environments. Bull sharks are regulars in rivers around the world, and even in some lakes.
They are highly aggressive and present a great risk to humans when they are around. With a maximum length of around eleven feet, they are not the biggest sharks out there, but their thick bodies and ferocious temperament make them among the most dangerous.
The largest of the hammerhead species can grow over 20 feet long. Though they've been depicted in action movies as dangerous adversaries of international spies, these giants are primarily fish eaters and rarely pose a danger to humans. Though there are documented hammerhead attacks on people, they are almost always defensive in nature.
In rare cases, they can inflict damage on careless divers. Like anything else in nature, if it has teeth and you don't respect it you may end up with a short and sad list of regrets when it comes to the hammerhead.
5. Greenland Shark
A massive, 20-foot-plus predator that lives in the frigid North Atlantic, the Greenland shark might not be much for most of us to worry about, but it’s an interesting creature worth mentioning nonetheless. With a diet of mostly fish and marine mammals, and due to its slow movement, this shark is not commonly thought of as a danger to humans.
However, local legends talk of these big sharks attacking kayaks, and there are stories of Greenland sharks surfacing to take prey off the ice.
How to Avoid a Shark Attack
A 30-foot great white shark, a 25-foot tiger shark, a massive Greenland shark pulling you from the ice or a bull shark many miles from the nearest ocean—these are the things we dread the most when we go near the water.
Sharks are dangerous animals, and if you decide to go into the water you are entering their domain. But the sad truth is that sharks have far more to fear from humans than we do from them. Illegal and unethical fishing practices have decimated the shark populations around the world, and few species go unscathed.
When a shark attacks a human they are only trying to survive, but humans have destroyed the shark populations for no reasons other than greed and ignorance. As much as you may fear sharks, they are a very important part of the natural world.
With proper education and conservation efforts, many species can bounce back, but only if enough people are interested in making a difference.
A healthy fear of sharks or any wild animal is a good thing. It reminds us of our place in the world from time to time, and maybe it keeps us a little more humble.
Do you worry about sharks when you go to the beach?
This content is accurate and true to the best of the author’s knowledge and is not meant to substitute for formal and individualized advice from a qualified professional.