8 Things Sharks Do for You Without You Knowing

You scared of sharks? In reality, you have more chances of being
struck by lightning than being bitten by a shark. Still, sharks do have a bad rap, even though
they’re not horrible as people think. They’ve even been known to save people! Here’s my list of why I think sharks are
cool! 1. They keep the ecosystem in balance. Because of excessive hunting, there are fewer
sharks around the world. People hunt them to get ingredients for things
like shark fin soup or shark cartilage pills, without realizing that not enough sharks means
not enough oxygen for us all to breathe. What’s the connection? Sharks feed on smaller fish, and smaller fish
feed on phytoplankton – tiny organisms that live in the seabed. Phytoplankton consumes carbon dioxide, releasing
oxygen. Without sharks, there’ll be too many fish
eating the plankton. It all boils down to one thing –a lack of
oxygen. 2. They help cure diseases. Scientists are continuously studying these
fascinating creatures, leading to medical breakthroughs. They’re especially interested in shark DNA,
and the possibility that it holds a cure for tumors, since their genes, in some way, protect
sharks against them. What’s more, researchers found a special
compound called squalamine in dogfish sharks’ tissue that can fight various chronic infections
in humans. Likewise, sharks’ skin has unique antibacterial
properties, which inspired scientists to invent a special surface-coating called Sharklet. Sharklet mimics the diamond pattern of shark
skin and is used in hospitals to reduce the risk of infection. 3. They inspire design innovations. Great white sharks can move at a speed of
up to 25 mph. The secret is in their denticles – small,
flat, V-shaped scales. These scales significantly lessen drag force
and turbulence. Olympian swimsuit designers did their best
to duplicate the sharks’ denticles, creating a fabric that makes swimmers sleeker and faster
in the water. The shark’s fin also became a huge inspiration
for inventing new technology for clean energy. One Australian company made a device that
captures tidal energy from the ocean, and converts it into electric power with minimal
environmental impact. 4. They might improve planes and cars. A 2018 Harvard University study suggests that
these unique denticles on sharks’ skin can also help to create more efficient planes
and cars. The team of engineers found out that they
increase lift. Lift is the force that pulls a plane up when
the pressure of the air on the top of the wing is less than the pressure of the air
under the bottom of the wing. So, by incorporating 3D-printed images of
the denticles on the wings, engineers hope to make them more aerodynamic. They can also be used for vortex generators
– a small vane attached to the top of the rear windshield of a car, which increases
the downforce of a vehicle. 5. They prevent global warming. As you already know, the shark population
is declining. This means that there are much more turtles,
crabs, and stingrays. And their favorite food is seagrass. But seagrass is a vital part of the blue carbon
ecosystem, which captures and stores carbon 40 times more efficiently than tropical rainforests. That’s why, without sharks, the marine creatures
keep eating the seagrass, disrupting the blue carbon ecosystems, and releasing ancient carbon. This has the same effect as the greenhouse
gas emissions from cars that destroy the ozone layer, leading to unpredictable and harmful
climate change. 6. They make people richer. People are scared of sharks, but they’re
also fascinated by these majestic predators. And over the last two decades, this fascination
has turned into a thriving ecotourism industry. The desire to get close to sharks pays off
really well – it brings millions of dollars to the economies of the Bahamas, South Africa,
the Galápagos Islands, Australia, and many other coastal places. Shark diving tourism is especially popular,
and it boosts local businesses, like diving companies and boat rentals. Hey, would you dare to try shark diving? I’ve done it! Let me know in the comments! 7. They can save people. Back in 2010, a 41-year-old man from Kiribati,
an island country in the central Pacific Ocean, got carried away into open waters on a wooden
boat. He was stranded out there with almost no water
or fuel for 105 days. No one knows how long his ordeal would’ve
lasted had it not been for one shark. Just when he’d lost all hope, a miracle
happened. He woke up to the sounds of a huge shark bumping
his boat – the animal was circling it into the direction of a ship. The people on the ship saw the lonely man
in the boat and helped him reunite with his family. The man was deeply thankful, not only to those
people, but to the smart shark too. 8. They can be your friend. A diving instructor from Port Macquarie, Australia,
has been buddies with a female Port Jackson shark for over half a decade. The man met his friend when the shark was
just a pup. At first, he approached the shark carefully
not wanting to scare her off. Pretty soon she got used to him and let him
pat, and even cradle her. After that, the two became regular friends. The shark always recognizes the man and demands
hugs at each visit. He doesn’t want his story to encourage others
to take risks around these marine creatures, but he hopes people will stop seeing them
as only aggressive attackers. If you’re still not convinced that sharks
are pretty cool, then get ready to hear some amazing shark facts that’ll blow your mind! Not all shark species live in the ocean. You can also see them in some freshwater lakes
and rivers. For instance, bull sharks swim in tropical
rivers, but they also don’t mind dipping their fins in saltwater. Rivers in the areas of New Guinea, Australia,
and South Asia are home to river sharks. Sharks are famous for their sense of smell,
but their acute hearing is also pretty impressive. They can hear as far as 800 ft away. They’re even able to catch the sound of
their prey tensing its muscles. Tiger sharks aren’t fussy eaters. They’ll settle for pretty much anything
that happens to be in the water, including barbie dolls, car license plates, tires, and
rubber boots. No wonder these sharks have the nickname “garbage
can of the sea”. The sharks’ skeleton isn’t made of bones. It consists of only cartilage and muscle,
which is much less dense than bones. That’s why they’re such great swimmers,
and can make sharp turns thanks to their flexibility. They’re also older than dinosaurs. Scientists believe sharks have been around
for about 450 million years. Their ancestors were a group of fish called
acanthodians, or “spiny sharks”. They looked like small sharks, but had different
fins. For comparison, the first dinosaurs appeared
more than 200 million years later. Sharks have rows and rows of teeth, and can
grow as many as 30,000 teeth in a lifetime. Boy wouldn’t that keep the dental office
busy. They’d only need one patient! Depending on the species, they can have up
to 15 rows in each jaw. At the front, they have the most powerful
teeth, and at the back they get smaller. Since their teeth aren’t deeply rooted like
humans’, sharks often lose them, but grow new ones right away. In other words, their jaws are like conveyer
belts of teeth. Believe it or not, sharks and humans have
a common ancestor that lived around 440 million years ago. Even though we both evolved in our own way,
there are still some signs of that connection. For example, the genome of an elephant shark
is very similar to humans’. Sharks don’t sleep. They’re up all night watching Bright Side. Many species …that was a joke…many species
have to keep water moving over their gills to get oxygen. So they can’t fall into a deep sleep like
we do. That’s why they stay half-awake during rest. Typically, sharks don’t even close their
eyes. There’s a rare species – the goblin shark
– that’s so old it was nicknamed the “living fossil”. The Goblin shark has been around for more
than 100 million years! It has pink skin and an odd-looking flat snout. These animals usually live close to the ocean
floor, deep underwater. Sharks have a sixth sense, and they like Bruce
Willis very much! Actually no, but they can navigate and hunt,
even in complete darkness or murky waters, thanks to special cells in their head that
can detect electricity. And all animals produce weak electric fields
because of the difference in the ion concentration between their bodies and seawater. This ability to detect electricity makes them
the best electrical sensors on the planet. Bottom Line: I think the species to stay away
from is the Loan Shark. He’ll charge you outrageous interest rates,
and threaten you with harm if you don’t pay it back in time. Just use a bank instead. Hey, if you learned something new today, then
give the video a like and share it with a friend! And here are some other cool videos I think
you’ll enjoy. Just click on this here left or right, and
stay on the Bright Side of life!


  1. HyperClaw875513

    March 7, 2020 at 12:29 am

    Yes sir

  2. blu flamer

    March 7, 2020 at 12:36 am

    The sixth sense is COMMON SENSE

  3. 684 Breed

    March 7, 2020 at 12:39 am

    Im a shark fan now.

  4. Ivan Celedonio

    March 7, 2020 at 12:45 am

    4:12 there is a mistake the Galapagos is near South America not Africa

  5. Lazaro Karyamandiri

    March 7, 2020 at 12:47 am

    I know that sharks can save human

  6. Kobie Dyer

    March 7, 2020 at 1:12 am

    you should be my teacher

  7. Minsika Weerasooriya

    March 7, 2020 at 1:21 am

    BRIGHT SIDE Thanks man now l like sharks

  8. Hell Cat 7

    March 7, 2020 at 1:22 am

    I admit I hated sharks because of Shark Movies lol….I didn't know how cool they actually are

  9. Angie Here

    March 7, 2020 at 1:23 am

    Welp guess I’m the first like

  10. Colleen Chapman

    March 7, 2020 at 1:28 am

    Absolutely I would love to go shark diving

  11. Shirlett Arnold

    March 7, 2020 at 1:48 am

    Like the Carona virus

  12. christina wong

    March 7, 2020 at 1:56 am

    Tell the scientists to make ice cream which can never melt

  13. yadiel frankookoo

    March 7, 2020 at 2:05 am


  14. Kenny Houser

    March 7, 2020 at 2:07 am

    No shark diving sharks can eat you .

  15. Bryan Hermoso

    March 7, 2020 at 2:15 am

    Wow their amazing sea creator's

  16. Hector Monjaraz

    March 7, 2020 at 2:28 am

    The Galapagos Island are in west from South America (Ecuador), not west from Africa.

  17. H. K.khandelwal Khandelwal

    March 7, 2020 at 2:30 am

    i love bright side

  18. iggy piggy341

    March 7, 2020 at 2:39 am

    SAVE the sharks save the sharks save the sharks

  19. Vaililigi Tuilagi

    March 7, 2020 at 2:42 am


  20. Sharkgames World

    March 7, 2020 at 2:45 am

    I love sharks

  21. R.R.K. Ryan

    March 7, 2020 at 2:51 am

    We should save SHARKS !!!

  22. Instakill Quack

    March 7, 2020 at 3:01 am

    Why you make videos about airplanes so much

  23. ATSF Venta Spur Nscaler

    March 7, 2020 at 3:09 am

    What a cool blue video! You shared so many fascinating facts about these amazing undersea predators. But you got wrong the location of the Galapagos Islands on the map when you flashed the spot in the Atlantic Ocean where the Canary Islands actually exist off the coast of northwest Africa. The Galapagos are situated almost halfway around the world in the Pacific Ocean about 500 nautical miles west of the South American country of Ecuador.

  24. mallercy babilonia

    March 7, 2020 at 3:09 am

    yo siempre los veo pero en la traduccion latino, pero siempre estare ahi para ayudarlos porque ustedes siempre me ayudan para estudiar algo importante

  25. yfn P

    March 7, 2020 at 3:20 am

    Wooden boat, stranded with almost no water and FUEL? Lol foh

  26. Its Me KreeshYT

    March 7, 2020 at 3:25 am

    Bright side : sharks are awsome
    Me: MOMMY can i be a shark?
    Mom: why this question?
    Me: idk just asking 😁

  27. ANONγMOUs !

    March 7, 2020 at 3:29 am

    4:16 it reminds me of plague inc. 😂

  28. SIDDU YOGI everything

    March 7, 2020 at 3:34 am

    9:28 🦈
    Sharks are best electric sensors .
    Volt metre : – am I a joke to you.

  29. TD gaming

    March 7, 2020 at 3:36 am


  30. Synixer

    March 7, 2020 at 3:59 am

    Kiribati guy had no water can't believe it. Since he was above water

  31. roblox and Minecraft gang

    March 7, 2020 at 4:03 am

    Hopefully BRIGHT SIDE reaches 50 million subscribers before 2023!

  32. Clancy Riley

    March 7, 2020 at 4:13 am


  33. Funny Masters

    March 7, 2020 at 4:42 am

    How do you know all of this whatever continue making your videos and your videos are the best video in the world

  34. Bryan Zaw

    March 7, 2020 at 4:51 am

    The shark ate me in ocean nomad…

  35. Ranjith kumar

    March 7, 2020 at 4:52 am

    Informative video thank you very much Bright Side 🥰

  36. Beneatha Monias

    March 7, 2020 at 4:57 am

    Now dis is why you should respect Sharks ÙwÚ

  37. Rashmi Malani

    March 7, 2020 at 5:03 am

    It's been a long time since you've made a video on universe☹️☹️requesting you to make one😊😊

  38. Patricia Roberts

    March 7, 2020 at 5:03 am

    I want to swim with sharks one day.

  39. Hor Sithisak

    March 7, 2020 at 5:05 am

    The first one doesn’t make sense

  40. Duchess

    March 7, 2020 at 5:11 am

    Is it possible that sharks can actually have something to cure coronavirus?

  41. Nneka Paul

    March 7, 2020 at 5:49 am

    I already knew number 3

  42. manohar bunny

    March 7, 2020 at 5:54 am

    Make a video on "preventive steps of corona virus".

  43. Nicholas Perry

    March 7, 2020 at 5:55 am

    I wanna go to the Great Barrier Reef now (btw i live in Australia)

  44. ahnaf rahman

    March 7, 2020 at 6:03 am

    i love sharks

  45. Cris Villaluz

    March 7, 2020 at 6:05 am

    Im a filipino

  46. billsyd2004

    March 7, 2020 at 6:05 am

    Sharks help with weight lose. Like sharks only eat when hungry. Sharks also help with ur taxes, only consume what u need etc etc.

  47. N Colligan

    March 7, 2020 at 6:16 am

    Actually sharks have 7 senses

  48. BleakCobra

    March 7, 2020 at 6:21 am

    Did you know that sharks can fly?

  49. Anubhab Kundu

    March 7, 2020 at 6:25 am

    we now have shark-fin antenna in Honda cars and an Indian brand (Mahindra and Mahindra) has launched a multi purpose car that has a shark inspired design, specially the radiator grille in the front. It is called Mahindra Marazzo here.

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