Most FASCINATING Shark Behavior!

Most FASCINATING Shark Behavior!


Despite the myth that sharks are lean, mean,
killing machines, the more we learn about them the more fascinating they become!! From advanced problem solving skills to making
friends, here are 8 fascinating shark behaviors. 8. Do sharks sleep? Even though we’ve been researching them
for years, shark sleeping is still a mystery. One popular theory that has been spread around
the whole world is that sharks don’t need to sleep. And that if they stop moving for any significant
period of time, they’ll die. This isn’t exactly the case, AND it depends
on the shark. Sharks breathe by filtering water through
their gills to process oxygen so people started to think that they had to move constantly. Some species of sharks do need to swum constantly
but others like the nurse shark have these things called spiracles that force water across
their gills, allowing them to stay still and rest. So also “sleep” in the animal kingdom
is kind of hard to define. Sharks don’t bunker down and tuck themselves
in or anything like that, but they can slow down some bodily functions to a slow crawl
so they can rest. They can make their brain less active and
sleep swim, because swimming is controlled by their spinal cord, not their brain. Just as interesting is that when sharks like
Caribbean reef sharks, nurse sharks, and lemon sharks are “inactive” or resting, you’ll
see them lying on the ocean floor, but they’ll actually keep their eyes open and still watch
any nearby fish or divers, so that they give the illusion of being awake. But are they?? Do you think sharks sleep? Let me know in the comments below!! 7. Instinct Vs. Intelligence
Due to the nature of sharks, they are driven by their senses more often than not. This is because of their lateral line system
that runs throughout their bodies. Their bodies are attuned to pick up certain
stimuli and react to it very quickly. This has driven the belief that sharks are
actually creatures of pure instinct, but that’s not exactly true. While some things that they do are pure instinct,
it’s not always the main thing that drives it. Instead, they’ll get information via their
senses, whether it be sight, sound, smell, or taste, and they’ll react how they feel
is appropriate. This is why there are many “inconsistencies”
between the various breeds of sharks. For example, there are numerous sharks that
are considered “solitary” creatures, and many of are, but they are also social. Sand Tiger sharks are very social and will
hunt alone and then every once in a while join in with a family group, similar to those
of elephants and gorillas. They will often change their mind depending
on the circumstances. Some species will come together to hunt in
packs or when it seems to benefit them. Lemon sharks have very complex social behaviours
and make friends with one another. There is no survival advantage, they just
like hanging out! Because many people think that sharks are
just run by their instinct, they think that sharks aren’t very intelligent. While many sharks don’t have the biggest of
brains and seem to run on autopilot like the blue shark, the Mako shark has a huge brain
and can learn quickly, assess risk, and perform tasks. We are just now starting to understand intelligence
versus instinct in sharks. 6. Working Together
Like I mentioned before, many sharks will form groups and work together. When you think of social animals, sharks probably
weren’t high on that list! It seems like we are always shown a lone fin
cutting through the water in order to get to an unsuspecting prey. Every shark for themself! But more and more, scientists are witnessing
sharks working together, and they are very efficient at it! In Smitswinkel Bay in South Africa, a whale
had gotten partially beached. A group of seven sharks detected this whale
and saw an opportunity to eat. However, because of its partially beached
body, they couldn’t get to it directly in order to feed. Somehow they worked together, and were able
to move whale into deeper waters, where they could chow down. Problem solving skills put to work! Dont ask me how they figured it out! Seven sharks working towards a single goal
is highly impressive. That takes a level of intelligence and trust
that isn’t always associated with the creatures. Porbeagle sharks have also been known to come
together and play. They will chase each other with kelp in their
mouth and roll over and over. And now for number 5 but first, if you are
a returning subscriber welcome back and thank you so much for your support! If you are new here be sure to hit that subscribe
button so you dont miss out on the latest videos! 5. Be the Prey
Sharks are the Apex Predators of the oceans especially the largest ones like the Great
White, Tiger, and Bull. But if you look at these sharks, and then
study their prehistoric past, you’ll realize that they weren’t always this way. Some of them had to evolve in order to become
the fierce and efficient hunters that they are now. A great example of this is the Mako Shark. Mako Sharks love to eat Bluefish Tuna, which
is a very fast fish. Scientists believe that after struggling to
catch the Bluefish Tuna, the Mako Shark started to adapt its body so that it would be more
streamlined and fast like its prey. When a predator and prey begin to have similar
genetic traits over time, this is called convergent evolution. This form of evolution is one that can be
started by both predator and prey alike. They’ll notice the traits of the other, and
then start molding their body like them. In the case of the Bluefish Tuna and the Mako
Shark, both of them now have centralized muscle structures. This has been likened to pistons, which help
propel both fish and shark in ways that other fish just can’t do. This is why the Mako is the fastest shark
in the ocean today. The Mako also uses its tail very effectively. Its shape, which is more crescent shaped than
other sharks, allows it to cut through the water easier, thus making it faster. This difference in shape also allows for more
straightforward movement, making it even more like a missile. To learn more, be sure to check out the video
on Mako Sharks when you finish this one!! Sharks and dolphins have also developed similar
genetic traits because they are both made for speed in the water to catch prey. For a shark to know that it needs to grow,
and then force its own evolution is incredible on numerous levels. 4. Best Hunting Strategies
A big misconception about sharks is how they kill prey. Many people think that because of their sharp
teeth, powerful bodies, and aggressive behavior that they just go after something, eat it,
and be done with it. But that’s not true, their behaviors are much
more refined when it comes to how they hunt. For example, while they can eat during the
day, they prefer to eat at night, when fish aren’t expecting them to show up. In fact, it’s well documented that sharks
have many strategies for hunting depending on the species, after all they are apex predators
for a reason! Some will beat their prey with their speed
and just grab them once in range. However, the Great White Shark and the Angel
Shark will actually use ambush tactics to get their prey. At times, they’ll ram their prey to stun them
first, then grab them. Or as Makos and Great Whites have shown, they’ll
ram from below, grabbing the tuna, fish or seal and lunge out of the water then slam
them down on the surface of the water in order to stun them. .
But sharks also know how to do their hunting effectively. They wait to use certain strategies so that
they won’t lose too many calories, which they use to travel incredible distances. So as you can see, they aren’t just vicious
hunters, they’re calculating ones. Another amazing case that was caught on tape
was when a humpback whale carcass appeared on the shore of Ponta, Mozambique. It was washed up on the beach and over 60
sharks of various species including dusky, tiger, and bull, took turns ripping hunks
of meat out of the whale. One of the tiger sharks also beached itself
to keep eating! But a large wave came along and the shark
was able to return back to the water. 3. Migration Patterns
Most sharks migrate using electroreception to go to warmer waters, follow schools of
food like fish, seals, and whales, and mate and birth their pups. Most sharks except great whites and makos
are cold blooded, so they have to migrate to the south in winter and north during the
summer to stay within the necessary temperature range. Thanks to tracking devices we know great white
sharks will migrate from one feeding ground to another and travel around 2500 miles (4000
km) in open ocean to get to where they need to go! They will swim and drift dive which is when
they stop swimming and their momentum carries them forward and they drift downward. Like when you are on a bike and pedal really
hard and then just coast. Other sharks won’t really migrate that much
at all for example the Nurse Shark and the Bonnethead shark which will stay in a range
of about 160 km (100 miles). Sharks will return to the same breeding grounds
year after year to protect their young from predators for a little while. Usually shallower, warmer waters where they
can’t become an easy meal. I have some good news for you! After several decades of decline, numbers
of great white sharks in the North Atlantic are finally increasing! And a shark nursery has been found near Montauk,
Long Island. 2. Glowing Sharks
Bioluminescence is nature’s way of giving living things the power to glow in the dark. There are two kinds of shark that were discovered
recently that have the ability to glow. The first is the aptly named Lantern Shark
family and the second is the kitefin shark. Most fish bioluminesce by using their light
organs (photophores), however, shark luminescence works in a different way. They emit light from photophores which helps
them camouflage themselves and communicate with each other. The lantern shark is able to control the amount
of light it emits, and it can emit just enough to make itself blend in with its environment. The light from the ocean’s’ surface would
cause any creature caught in it to make a “shadow” or silhouette. But, the Lantern Shark knows a magic trick
and actually glows its body so that it matches the light in such a way that its “shadow”
disappears! Ta-da! Then, there’s the Velvet Belly Lantern Shark,
which actually has an entire spine that glows. This adaptation makes it so that it can ward
off predators that dare get too close to it. 1. Body Language Communication
Have you ever wondered how sharks communicate with one another? After all, they can’t “talk” or make sounds
like other animals. So how do they make it so that other sharks
know exactly what they’re saying even though they aren’t “saying” anything? The answer is that they are very talented
at communicating through body language. Sharks have learned a very intricate and detailed
way of communicating by the way they move their bodies. For example, if a shark wants to look strong
and imposing, they’ll stiffen up and open their mouths, or, they’ll arch their backs
to seem like they’re in an attack posture. They’ll also swim in certain ways to help
show that others are in their area or domain. When things get a little hairy, sharks have
been known to slap surface water with their tails or to jump out of the water and slam
into it in order to lay their claim or to ward off other sharks from trying to steal
their prey. So while it may not seem like it, sharks do
indeed talk, and they make their intentions known to their own kind without hesitation. Divers and shark experts are amazed by the
subtle complexities of shark lingo, but as they’ll tell you if you watch shark week,
as long as you read the signs and maintain eye contact, you should be fine!! Thanks for watching! Hope you learned something new about sharks
today! Let me know what you think in the comments
below!! Be sure to subscribe, and I’ll see you next
time!

72 thoughts on “Most FASCINATING Shark Behavior!

  1. If You Guys Think Sharks Sleep. Reply This Comment. Then If You Guys Think Sharks Don't Sleep Reply This Comment. Anyway Thanks!

  2. For those shark species that lack spriacles, I feel that only half their brains will switch to sleep mode at a time like dolphins, whales and porpoises..

  3. Hi Katrina, awesome video, enjoyed! Sharks are one of my favorite videos to watch! Love your channel and content! 👍😉🦈

  4. I was waiting for you to do another shark video. Did you hear that some scientists think they've found a shark bigger than megalodon?

  5. I MADE IT TO THE 3:00 min. MARK
    OF THE 1st. COMMERAL AND SINCE IT
    WAZ 1 OF THOZE (FORCED) 👈🏼
    TO WATCH COMMERAL .
    I STOP YOUR VIDEO & OPTED OUT…
    AND USED OPTION TO STOP YOUR
    VIDEOZ FROM RUNNING ACROSS
    MY YOUTUBE TIMELINE AGAIN….
    ( Now Go "FORCE" That Up Your A** )….

  6. Only thing i like about shark is to stay far from them in the ocean, but i feel they sleep from they have breathe unless they are robot they don't sleep

  7. The narrator's voice is so obnoxious. Sounds like she's talking to a toddler. I think this channel underestimates its viewers intelligence.

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