Do Sharks Make Noise? Must-Read Facts About These Deadly Creatures!

Deepthi Reddy
Dec 01, 2022 By Deepthi Reddy
Originally Published on Nov 21, 2021
Edited by Lara Simpson
Fact-checked by Amatullah Gulbargawala
info_i
Find out do sharks make noise or if it's only heard in movies.

Common shark fears incorporate their physique and their noise in our minds as we see sharks.

Let's learn whether sharks have a variety of noises. Do these sleek underwater predators actually create any noise, or is it just a myth?

Before we get into the noise it makes, let's take a glance and know little about sharks. Do you know that sharks are a broad group of fishes that have been around for almost 430 million years, long before dinosaurs existed? These are classified into eight orders, with 512 identified species while humankind still has about 23 unknown species.

Sharks look scary in the dull gray with a muscular, large fusiform body with a conical snout and have crescent-shaped tails. Most sharks possess eight fins, two pelvic fins, two pectoral fins, two dorsal fins, one caudal fin, and one anal fin.

The stiffness of the pectoral fins allows for downward movement, lifting quickly. A shark's tail comprises the caudal peduncle and the caudal fin, which helps in propulsion. Sharks have skeletons formed of cartilage rather than bones; they repeat numerous replacement tooth sets.

So, do you wonder how big can it get? A whale shark is the largest fish among them that may reach a length of 40 ft (12.19m). Are you wondering whether it's a whale or a shark?

The whale shark gets its name purely because of its size. So how about the smallest?

It's a minuscule dwarf lantern shark, a deep-water species that is merely 6.7 in (17cm) long. We can find sharks in almost all oceans, and they can dive deep up to 6,600 ft (2,000 m).

They do not ordinarily live-in freshwater; but, certain species are peculiar, like the bull shark and the river shark, which may be found in both seawater and freshwater.

Several species of shark are apex predators, such as great white sharks, tiger sharks, bull sharks, blue sharks, shortfin mako sharks, and great hammerhead sharks.

As a result, they are essential regulators of other species in marine environments. Sharks usually do not attack humans, but a few shark species such as the great white shark, blue shark, oceanic whitetip shark, gray nurse shark, lemon shark, tiger shark, and bull shark are known for a large number of deadly, unprovoked attacks on people.

Species such as the nurse shark bite their prey even when they are exceedingly slow and have poorly developed teeth.

There is a lot to learn about sharks. Other fascinating articles to read are do sharks eat dolphins? And do sharks have bones?

Can sharks make a noise?

We usually imagine sharks roaring before gulping somebody with their massive teeth, but it's merely a fantasy. It is hard to believe, but real sharks have a ghost-like silence. According to researchers, they do not have any sound-producing organs, and their scales have been accommodated to allow them to swim in the water silently.

Despite their innate sense, sharks are the ultimate quiet hunters. According to some studies, sharks do not appear to make a sound like other very loud fish do.

Their rows of little vestigial teeth are too small to grind against one another. They also lack swim bladders, which some fish use to control buoyancy and produce pressure. As these sharks have deeper pockets than we've yet discovered, it is believed that the shark merely glides quietly through the blue water.

In contrast, other aquatic animals generate various noises by slapping sections of their body against the water's surface. However, occasionally we can hear a shark bubbling or purring, similar to a big cat purring. This can happen when sharks gulp air from the water's surface, entering their bodies and escaping through their cloacas.

Do great white sharks make noise?

This white shark is the most hazardous since it is one of the principal predators of marine animals and has no natural predators other than killer whales. It is studied that these large sharks can reach up to 20 ft (6.1 m) long, weighing 7,328 lb (3,324 kg) could produce a biting force of 4,095 lb (18,216 N).

Despite that, these sharks, like all other sharks, have no glands for producing sound.

Instead, it is observed that these sharks use jaw gaping, body curling as signs that they adopt to communicate with each other and perhaps even with humans.

When these great white sharks and blacktip reef sharks routinely raise their heads above the water's surface to look at prey or during jaw gaping, you may hear splashes of water surrounding the shark creating soft bubble sounds.

This is known as spy-hopping; otherwise, the animal gently breaches the surface.

On the other hand, these are so powerful that they have been shown to restore minor wounds on their own; In a rare instance, it was witnessed that a shark that was almost sliced in half by a boat propeller healed back in nine months. It is observed that sharks, like other elasmobranch fish, lack nociceptors.

As a result, one of the arguments that sharks feel pain ought to be disproved, and even their deadly wounds do not make them sense pain.

What kind of noise do sharks make?

Sharks have a ghost-like silence and breathe underwater.

Sharks, unlike their noisy neighbors, do not make noise. There is, meanwhile, an extraordinary case. There have been several stories from New Zealand fishers claiming to have heard sharks barking like a giant dog.

We're discussing draughtsboard sharks here, who are likely to make a lot of noise. There is a possible assumption by experts behind it. Read on to explore it?

When confronted by a possible predator, these draughtsboard sharks manage to stretch themselves like a pufferfish. When they are afraid, they rapidly pump water into the front part of their stomach, enlarging their width by up to three times.

There is a specific muscle ring named cardiac sphincter that helps to prevent water from leaving the stomach. The majority of predators are terrified or alarmed by this sudden increase in size.

The enormous shark relaxes its cardiac sphincter when the threat has passed, allowing the swallowed water to escape via the stomach and mouth. Two more members belong to this category, and they are balloon sharks and swell sharks.

Do sharks make noise underwater?

The deep-sea is frighteningly dark, but it is not eerily silent. Underneath the ocean, sound travels by incredible speed and beyond great distances.

So, sea creatures generate noises to communicate with one another and sense their surroundings. You ought to know that whales and dolphins rely more on their hearing than their vision for survival. Whales have three significant noises for diverse contexts: songs, whistles, clicks, and pulsed calls.

While barks, growls, and grunts are the vocalizations of sea lions. Particular dolphins have been reported to emit high-pitched whistles beneath the water and above the surface when in distress.

On the other hand, sharks can't create any noise underwater. According to research, they are silent and cannot be identified until they get directly behind their target.

On the other hand, rising noise levels in the quiet realm can significantly influence ocean species and ecosystems. These noises might be caused by naval surveillance, oil drilling, or industrial ships.

Increased noise levels can weaken animals' ability to interact with possible partners, other group members, and young ones. Noise can also impair these ocean animals' capacity to detect critical environmental cues for survival, such as finding food, navigating to preferred areas, or escaping from predators.

Do sharks make noise when they attack?

You would know that a shark uses sound rather than sight or scent to locate prey. They use irregular sounds made by the troubled swimmer or an injured fish, attracting sharks from long distances.

But, sharks swim in the open ocean in silence. They are sleek underwater predators who hunt their prey quietly.

Other than sound, some additional elements attract sharks. Some scientific studies indicate that sharks can recognize colors and even discriminate between light and dark hues, and it is observed that the yellow, white, and silver colors seem to attract sharks.

To avoid shark attacks, many divers use clothes, paddles, and tanks painted in soft colors. It is said blood, along with the presence of other unusual factors, will attract sharks more likely to attack.

Despite being responsible for human assaults, it was estimated that approximately millions of sharks are slaughtered for shark meat every year. Shark meat is legal in many nations and has been served since at least the late Bronze Age.

But remember, not all shark meat is safe to eat as it may contain numerous toxins. The most widely consumed shark species are makos, dogfish sharks, sand sharks, catsharks, and mustelus.

Do sharks make noise out of water?

Sharks can readily migrate to varying depths in the ocean, unlike other fish, constrained to specific depth ranges. So, do you gather they create noise with this water?

The answer is again no. Every day, some individuals go deep into the water to dive with sharks.

However, no person has ever claimed to have heard audible noises from these species. Do you know one of the sharks' unique adaptations is traveling freely up and down the water column? But, sharks are supposed to swim constantly to avoid sinking to the bottom of the water column.

Of course, it is untrue in the case of the nurse shark and tiger shark as they have spiracles that drive water over their gills and help them remain motionless. But it is all done in silence.

It is amazing to know that several shark species have a great sense of smell, allowing them to distinguish and even determine the direction of a mild odor, such as one part per million of blood in saltwater. Sharks also have a strong sense of hearing and may be able to detect prey from great distances.

Most sharks have a hearing range of 20 to 1000 hertz. It is said that sharks dislike even the turbulence of the bubbles which scuba divers create while they breathe underwater.

Apart from these, sharks have unique sensing organs set of electroreceptors called Lorenzini Ampullae. These electroreceptors network of mucus-filled holes has various uses, including sensory receptors for pressure, touch, temperature, electric, and magnetic fields.

The ability to sense magnetic and electric fields increases the shark's ability to navigate and influence social activities such as mating, avoiding predation, and providing them benefits in hunting. They also have a lateral line, a tactile sensory system that allows noticing changes in water speed and pressure in the vicinity.

Despite the reality, even if sharks feel pain, they can't roar. The sharks' natural senses aid in locating prey from great distances.

Here at Kidadl, we have carefully created lots of interesting family-friendly facts for everyone to enjoy! If you liked our suggestions for do sharks make noise, then why not take a look at do sharks have tongues or do sharks lay eggs?

Facts

We Want Your Photos!
We Want Your Photos!

We Want Your Photos!

Do you have a photo you are happy to share that would improve this article?
Email your photos

More for You

See All

Written by Deepthi Reddy

Master of Business Administration

Deepthi Reddy picture

Deepthi ReddyMaster of Business Administration

With an MBA under her belt, Deepthi has discovered her true calling in content writing. Her writing repertoire is diverse, covering travel, movies, pet care, parenting, animals and birds, and more. Her joy of learning and creating has helped her craft well-written and engaging articles. When she isn't writing, Deepthi enjoys exploring new cultures, trying different foods, and spending quality time with her two children aged 7 and 12.

Read full bio >
Fact-checked by Amatullah Gulbargawala

Bachelor of Arts specializing in English, Bachelor of Education specializing in the Language Arts

Amatullah Gulbargawala picture

Amatullah GulbargawalaBachelor of Arts specializing in English, Bachelor of Education specializing in the Language Arts

Amatullah is a passionate student pursuing a Bachelor of Arts and Bachelor of Education from Ashoka College of Education. With a keen interest in literature, she has excelled in elocution competitions and is an accomplished writer. She has completed courses like "History of English Language and Literature", "Introduction to Western Political Thought and Theory", and "Development of Soft Skills and Personality". In her free time, Amatullah enjoys reading books and writing poetry.

Read full bio >