Whether you are one jaw If you’re a fanatic or just want to live like Shark Week every week, check out these fascinating facts about sharks that came from an episode of The List Show on YouTube.
1. There are more than 500 species of sharks.
Their size ranges from 8 inches to 40 feet long.
2. The cookie shark grows up to 22 inches.
The cookie cutter shark uses its suction cup-like lips to attach itself to the prey. As soon as it sticks to it, the shark turns its body and takes out a cone-shaped piece of meat with its bottom row of serrated teeth. Usually, cookie cutters feed on marine animals that are much larger than them, but they have also bitten a few people … and are known to leave traces on submarines as well.
3. Peter Benchley̵
7;s 1974 novel jaw was inspired by a fisherman who caught a £ 4,500 giant in Montauk in 1964.
The novel would not always be called jaw: Alternative titles were “The Silence in the Water”, “The Silence of the Deep”, “Leviathan Rising” and “The Jaws of Death”.
4. Peter Benchley later became a shark conservationist.
He used his pen to clear up misunderstandings about the fish. In 2006 he said: “I could never write this book today. Sharks don’t target humans and they certainly don’t have a grudge. “Funny fact: Benchley makes a cameo in Steven Spielberg’s 1975 film adaptation of his novel. He plays a television news reporter.
5. Shark attacks are very rare.
In 2018 there were 66 confirmed unprovoked attacks. In America, the risk of dying from a shark attack is 1 in 3,748,067. Fireworks, a train accident, or MRSA – these antibiotic-resistant bacteria – are more likely to kill you than sharks. The risk is even lower worldwide.
6. Sharks have been around for a while.
Thanks to fossils, we know that they have been swimming in the sea for at least 400 million years.
7. Some shark species can grow incredibly old.
Researchers used radiocarbon dating on the eyes of 28 Greenland sharks in 2016 and found that a woman could have been around 400 years old.
8. Greenlandic shark meat is a delicacy called hákarl in Iceland.
The shark’s meat is poisonous when fresh, so it must go through a fermentation process in which the shark’s body is buried in sand under rocks for six to 12 weeks. The meat is then cut and hung up to dry. The finished product smells strongly of ammonia. Anthony Bourdain called it “the worst, most disgusting and terrible thing he had ever eaten”.
9. Great white sharks have a man-eating reputation, but they are much more interested in seals and sea lions.
According to research, whites have an accuracy of 40 to 55 percent when catching their seal prey. The hunting process also often involves the sharks coming out of the water entirely, which is known as an injury.
10. Large whites are quick.
You can swim at 35 miles per hour for short bursts.
11. Many shark researchers believe the old story of “whites attack people because they think we are seals” is a myth.
Great white shark attacks on humans are much less vicious than the way sharks attack prey like seals and sea lions – a study found that 76 percent of attacks on surfers did not numb the armed forces with a pinnacle. In most cases, they’re probably just curious – though they may still be fatal. An expert told Discovery that if you see a shark, the safest thing to do is to stay calm and try to slowly and calmly get back to safety.
12. Great white sharks are not normally found in aquariums – but not due to a lack of experiments.
Since the 1970s, aquarium workers who have tried to keep the sharks in captivity have basically had the same tragic experience: finding a captured Great White Shark sick and then dead within a week. In sharks, sharks cannot swim at high speed or over the distances they are supposed to be. They hit the glass and get hurt or just stop swimming and dying. Younger sharks tended to do better: The Monterey Bay Aquarium was able to keep a young white for 198 days, but released them after chasing other sharks.
13. Tiger sharks and sand tiger sharks are not the same thing.
Another shark you probably won’t see in captivity these days is the tiger shark – not to be confused with the sand tiger shark, a completely different species found in aquariums around the world.
14. Female tiger sharks have many, many puppies.
After 13 to 16 months of pregnancy, a woman can give birth to between 10 and 82 small shark babies. The average is 30.
15. It is not uncommon for a female shark to give birth to its pups in the place where they were born.
A study that started in 1995 and ended in 2012 found that this is the case with lemon sharks in the Bahamas.
16. Female mako sharks stay away from male makos.
In a four-month research, a biologist and his team registered 264 male and 132 female Mako sharks on Easter Island. They found that there was a clear separation between men and women. You were amazed at why. One of them suggested that this could possibly have to do with the fact that men often bite their intended partner. Maybe the women tried to avoid this whole situation. Funny fact: biting is often part of the copulation of sharks because the males have to hold onto something.
17. Not only biologists were interested in sharks.
In 2002, software programmer Jason Holmberg went on vacation and discovered the rare whale shark. He wanted to make the spotted sharks less mysterious, so he teamed up with an astrophysicist and a marine biologist. They were able to adapt an algorithm that was created for the Hubble Space Telescope program to identify sharks. The algorithm was originally intended for star mapping, so it made sense as an algorithm for shark point mapping. Since then, they have created a database of 32,000 images of whale sharks. The database has helped them track the locations of the animals so they can learn more about the whale shark lifestyle.
18. The shape of the heads of hammerhead sharks could help with hunting.
Sharks can perceive electric fields in the water, which allows them to determine whether they are near prey. One theory states that hammerhead sharks have more of these sensory organs in their heads so that they can find their prey better. Your eyes, which are so far apart, also help – you have a better binocular vision.
19. Shark embryos can recognize predators.
Sharks use electric fields not only to identify prey, but also to identify predators. Even shark embryos have this ability. In a study published in 2013, a group that examined brown bamboo shark embryos found that their gills would not move if the embryos were in a predator’s electric field.
20. Sometimes sharks like to rest in groups.
Nurse sharks and white tip reef sharks have been observed to gather in groups of 2 to 40 people, usually in a safe place like a crack, often just taking a nap.
21. A basking shark looks very strange when it decomposes.
It quickly loses parts of its jaw and tail. Therefore, it is not uncommon for people who spot a decomposing basking shark on the shore to believe they have found a sea monster. This happened in Massachusetts in 1970.
22. A tiger shark once vomited evidence of murder.
In the 1930s, a tiger shark in the Coogee Aquarium in Australia vomited a human arm, evidence that became part of a murder trial. A tattoo on the arm identified the person it belonged to, James Smith. It turned out that he was missing – and the shark hadn’t bitten off the arm, it was cut off with a knife. There was a suspect, Patrick Brady, and a man who wanted to testify that Brady was responsible. But this witness was shot before the trial. Brady’s lawyer claimed that there had to be a body for a murder and all they had was an arm. Brady went free. The shark has unfortunately died.
23. The goblin shark eats with “spin-feeding”.
The deep-sea goblin shark has a jaw that shoots out to catch prey in what scientists have termed “spin-feeding”. No wonder they are often compared to monsters. The goblin shark can unfold its jaw at a speed of 10.1 feet per second – about twice as fast as pedestrians in New York City.
24. The goblin shark is named after a Japanese demon.
Japanese fishermen called the sharks Tengu Zame. Tengu is a demon with a long nose that sometimes steals children. And for me means “shark”. This is how we got our English translation: Goblin Shark.
25. Not all sharks are wild carnivores.
It has long been observed that shark hair eats seaweed – up to 62.1 percent of the intestinal mass. Until recently it was unclear whether they would digest it. In 2018, however, an analysis of the stable isotopes confirmed that this was indeed the case, which made them the first known omnivorous shark.
26. There are several types of lantern sharks, including a dwarf lantern shark that is no larger than 20 cm.
These sharks have bellies and fins that glow. So it is believed that when a predator swims among them, the predator does not know the difference between the shark and the light coming from the sun into the ocean.
27. Not all sharks are exclusively sea creatures.
Bull sharks are unusual in that they tolerate fresh water. Most sharks need to be in salt water because their bodies can handle it – put them in fresh water and they will lose too much salt. However, bull sharks are better able to store salt in their bodies so that they can travel in fresh water. In fact, in 1937, Alton, Illinois, was caught 1,000 miles above the Mississippi from the Gulf of Mexico, where you would normally not expect to encounter a shark.
28. Megalodon sharks were huge – maybe about 50 feet long.
But there are now theories that the scanty Great White Shark, less than half the size, could possibly be extinct. Megalodons used to be thought to have died out around 2.6 million years ago, but when a group of paleontologists and geologists went through the fossils and data, they put them at 3.6 million years – which happened to be the time of this great white shark on. They were likely able to compete with younger megalodons and compete for food.
29. Megalodon shark teeth could be about 7 inches long.
In fact, you may want to look for them. In 2018, a couple found a petrified megalodon tooth on a beach in North Carolina.
30. An American president had a megalodon tooth.
Thomas Jefferson loved fossils and even exhibited some at the Monticello entrance. Today his megalodon tooth is at the Academy of Sciences in Philadelphia. Of course, he signed it.
31. The song “Baby Shark” used to be sung by children in camps.
Before Pinkfong’s version of “Baby Shark” became one of the most viewed YouTube videos of all time, it was a common song for children to sing in camps. But when Johnny Only made us all get stuck in our heads today, he changed a few things. In the original texts, the sharks attack people and even kill them. Peter Benchley would disagree.