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Scientists Uncover Key Reason Behind Shark Attacks and Offer Safety Advice
Since the debut of “Jaws” in 1975, a considerable number of individuals have harbored a profound dread of **shark attacks**. Recent research offers insights into why these incidents occur. Scientists have pinpointed a primary cause behind certain **shark attacks**, providing valuable guidance for anyone venturing into the ocean.
Understanding Shark Behavior and Minimizing Risks
Despite their fearsome image, shark bites are relatively uncommon. There are approximately 100 shark bites annually, with about 10 percent proving fatal. Sharks may attack for various reasons, including competition, territoriality, and hunting.
Self-Defense as a Motivator for Shark Bites
An international team of researchers has revealed a seldom-discussed factor that prompts sharks to bite: self-defense. While it might seem self-evident, experts suggest that these animals might bite as a defensive reaction.
Therefore, the simplest means of preventing a shark attack is to avoid disturbing sharks, particularly those that might appear distressed.
Dr. Eric Clua, a shark specialist and researcher at Université PSL, stated, “We demonstrate that defensive bites by sharks on humans – a reaction to initial human aggression – are a reality, and that the animal should not be considered responsible or at fault when they occur.”
He further explained, “These bites are simply a manifestation of survival instinct, and the responsibility for the incident needs to be reversed.”
How Human Actions Can Trigger Defensive Bites
Self-defense bites arise in response to human actions perceived as aggressive, including activities like spear fishing or merely encroaching upon their territory.
“Do not interact physically with a shark, even if it appears harmless or is in distress,” Dr. Clua advised. “It may at any moment consider this to be an aggression and react accordingly.”
He emphasized, “These are potentially dangerous animals, and not touching them is not only wise but also a sign of the respect we owe them.”
Some coastal shark species, such as the gray reef shark, exhibit strong territorial behavior and are bold enough to approach humans.
Avoiding Shark Encounters: Practical Tips and Precautions
The most effective way to avoid a shark bite is to avoid actions that might be viewed as aggressive.
This includes refraining from assisting stranded sharks, since such assistance might not be interpreted as helpful.
* “Do not interact physically with a shark, even if it appears harmless or is in distress. It may at any moment consider this to be an aggression and react accordingly,” Dr. Clua cautioned.
* “These are potentially dangerous animals, and not touching them is not only wise but also a sign of the respect we owe them.”
When sharks act defensively, they may use excessive force, leading to greater harm than the perceived threat warrants, Dr. Clua explained.
He added, “We need to consider the not very intuitive idea that sharks are very cautious towards humans and are generally afraid of them.”
“The sharks’ disproportionate reaction probably is the immediate mobilization of their survival instinct.”
“It is highly improbable that they would integrate revenge into their behavior and remain above all pragmatic about their survival.”
Research on Shark Bites in French Polynesia
Dr. Clua’s research has focused on shark bites in French Polynesia, where records date back to the early 1940s. However, reliable data on bite motivation is more recent.
Key Findings:
Between 2009 and 2023, 74 bites were documented, with four attributed to self-defense, representing approximately 3 to 5 percent of all shark bites.
* The researchers believe that these findings are applicable to shark bites worldwide.
Shark Attack Statistics and Conservation Efforts
The findings were published in the journal *Frontiers in Conservation Science*.
Data from 2024 indicates that there were 47 unprovoked shark bites, the lowest figure in nearly 30 years. This included four fatalities, leading experts to describe the year as ‘an exceptionally calm year for shark bites’.
The majority of these incidents occurred in the USA, with 28 attacks across six states. Half of the country’s shark attacks were in Florida, where the extensive coastline and warm waters increase the likelihood of encounters between humans and sharks.
Elsewhere, Australia reported nine shark bites, while ten other territories each recorded one bite.
Conversely, humans kill tens of millions of sharks each year.
Dr. Diego Vaz, Senior Curator of Fishes at the Natural History Museum, commented, “Millions of sharks are killed each year, from newborns through to fully grown adults, and we’re also destroying their environment.”
“In comparison, 47 people being bitten seems so small, especially across so many kilometers of beach around the world.”
He added, “We need to remind ourselves that we’re entering their environment as visitors, and so we need [to] accept the risks that [it] brings and take precautions where needed.”
Sharks: Understanding Their Ruthless Reputation
Sharks are apex predators that have instilled fear in humans for centuries.
Their basic design has remained largely unchanged for over 200 million years, and they are considered complex and intelligent creatures.
Teeth are a primary source of fear, with great white shark teeth reaching lengths of up to two-and-a-half inches.
Prey is impaled on the pointed teeth of the lower jaw, which saw away sections of flesh. The serrated edges of the teeth enhance this process.
* Their teeth are brittle and constantly break off but are also constantly regrowing, with an average of 15 rows of teeth present in the mouth at one time.
Speed is another factor
They are very fast in the water compared to humans with the mako shark able to reach an incredible 60mph in bursts.
The great white can reach speeds of 25mph.
* By comparison, 5mph is the fastest a human being can reach.
A shark’s power and size terrifies us, too.
The great white shark can grow up to 20 feet, and while it has no particular taste for humans even an exploratory bite is enough to cut a man in half.
Most sharks release a human after its first bite but sometimes, that’s all it takes to kill a person.
However, sharks have far more reason to be afraid of humans. We kill up to a million of them a year, often just cutting off their fins to make into soup and throwing the rest of the shark back into the water, where it starves or drowns.