31 Facts About Sharks

Photo by Jakob Owens on Unsplash
Photo by Jakob Owens on Unsplash

Whether you're a Jaws fanatic or just want to live every week like it's Shark Week, you'll want to read up on these fascinating facts about sharks, adapted from an episode of The List Show on YouTube.

1. There are more than 500 types of sharks.

They range in size from 8 inches to 40 feet long.

2. The cookie cutter shark grows to up to 22 inches.

The cookie cutter shark uses its suction-cup-like lips to attach itself to prey. Once it’s firmly stuck on there, the shark spins its body, using its bottom row of serrated teeth to take out a cone-shaped chunk of flesh. Typically, cookie cutters feed off of sea creatures much bigger than them, but they’ve also taken bites out of a couple of humans … and they’ve been known to leave their mark on submarines, too.

3. Peter Benchley’s 1974 novel Jaws was inspired by a fisherman who caught a 4500-pound behemoth in Montauk in 1964.

The novel wasn’t always going to be called Jaws: Alternate titles included “The Stillness 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 tackle misconceptions about the fish. In 2006, he said, “I could never write that book today. Sharks don’t target human beings and they certainly don’t hold grudges.” Fun fact: Benchley makes a cameo in Steven Spielberg’s 1975 movie adaptation of his novel. He plays a TV 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. You’re more likely to be killed by fireworks, a train crash, or MRSA—that antibiotic-resistant bacteria—than you are by sharks. Worldwide, the risk is even lower.

6. Sharks have been around for a while.

Thanks to fossils, we know that they’ve been swimming the seas for at least 400 million years.

7. Some species of shark can live to be incredibly old.

Researchers in 2016 used radiocarbon dating on the eyes of 28 Greenland sharks and determined that one female might have been around 400 years old.

8. Greenland shark meat is a delicacy in Iceland called hákarl.

The shark’s meat is toxic when fresh, so it has to go through a fermentation process that involves burying the shark’s body in sand under rocks for six to 12 weeks. The meat is then cut up and hung to dry. The finished product has a strong scent of ammonia. Anthony Bourdain called it "the single worst, most disgusting and terrible tasting thing" he’d ever eaten.

9. Great white sharks have a man-eating reputation, but they’re much more interested in seals and sea lions.

Great whites have a 40 to 55 percent accuracy rate in catching their seal prey, according to research. The hunting process also often involves the sharks coming fully out of the water, which is called breaching.

10. Great whites are fast.

They can swim at 35mph for short bursts.

11. Many shark researchers think the old tale of “great whites attack humans because they think we’re 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—one study reported that in 76 percent of attacks on surfers the force would not have stunned a pinniped. In most cases they’re probably just curious—though still potentially deadly. One expert told Discovery that if you do see a shark, the safest thing to do is to remain calm and try to slowly and calmly get back to safety.

12. Great white sharks typically aren’t found in aquariums—though not for lack of trying.

Since the 1970s, aquarium workers who have tried to keep the sharks in captivity have been having basically the same tragic experience: finding a captive great white shark sick, then dead, within a week. While in enclosures, the sharks can't swim at the high speeds or over the distances they're supposed to, so they bump into the glass and get hurt or just stop swimming and die. Younger sharks have tended to do better: The Monterey Bay Aquarium was able to keep a young great white for 198 days, but released her after she started going after other sharks.

13. Tiger sharks and sand tiger sharks aren't the same.

Another shark you probably won’t see in captivity these days is the tiger shark—not to be confused with the sand tiger shark, which is a completely different species found in aquariums around the world.

14. Female tiger sharks have many, many pups.

After 13 to 16 months of pregnancy, a female might give birth to between 10 and 82 little shark babies. The average is around 30.

15. It’s not unusual for a female shark to give birth to her pups in the place where she herself was born.

One study, which began in 1995 and concluded in 2012, found this to be the case with lemon sharks in the Bahamas.

16. Female mako sharks stay away from male makos.

In research that lasted for four months, a biologist and his team recorded 264 male and 132 female mako sharks in the Easter Island area. They found that there was a clear divide between where males resided versus females. They were baffled as to why. One of them suggested that it might have to do with the fact that males often bite their intended mate, so maybe the females were trying to avoid that whole situation. Fun fact: Biting is often a part of shark copulation, because the males have to hang on to something.

17. It’s not just biologists who have taken an interest in sharks.

In 2002, software programmer Jason Holmberg went scuba diving on vacation and spotted 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 had been created for the Hubble Space Telescope program and use it to start identifying sharks. The algorithm was initially for star mapping, so it made sense as an algorithm for shark spot mapping. They’ve since created a database with 32,000 pictures of whale sharks. The database has helped them track the animals’ locations, which means they can learn more about the whale shark lifestyle.

18. The shape of hammerhead sharks' heads might help with hunting.

Sharks are able to sense electric fields in water, which allows them to determine if they’re in the vicinity of prey. One theory is that hammerhead sharks have more of those sensory organs in their heads, so they can find prey better. Their eyes being so far apart helps too—they have better binocular vision.

19. Shark embryos can sense predators.

In addition to using electric fields to sense prey, sharks also use them to sense predators. Even shark embryos have that ability. In a study published in 2013, a group studying brownbanded bamboo shark embryos found that when the embryos were in the electric field of a predator, their gills would stop moving.

20. Sharks sometimes like to rest in groups.

Nurse sharks and whitetip reef sharks have been observed gathering in groups of 2 to 40, usually in a safe place like a crevice, often just napping.

21. A basking shark looks very weird when it decomposes.

It quickly loses parts of its jaw and tail. So it’s not unusual for people who spot a decomposing basking shark on the shore to believe that they’ve found a sea monster. This happened in 1970 in Massachusetts.

22. A tiger shark once puked up evidence of a murder.

During the 1930s, a tiger shark at Coogee Aquarium in Australia vomited a human arm, evidence that became part of a murder trial. Thanks to a tattoo on the arm, the person it belonged to, James Smith, was identified. It turned out that he was missing—and the shark hadn’t bitten the arm off, it was cut off with a knife. There was a suspect, Patrick Brady, and a man willing to testify that Brady was responsible. But that witness was shot before the trial. Brady’s lawyer claimed that for a homicide, there needed to be a body and all they had was an arm. Brady went free. The shark unfortunately died.

23. The goblin shark eats using "slingshot feeding."

The deep-sea-dwelling goblin shark has a jaw that shoots outward to grab prey in what scientists have dubbed “slingshot feeding,” so it’s no wonder they often get compared to monsters. The goblin shark can deploy its jaw at 10.1 feet per second—roughly twice the speed that New York City pedestrians walk.

24. The goblin shark is named after a Japanese demon.

Japanese fishermen named the sharks tengu-zame. Tengu is a demon with a long nose that sometimes steals children. And zame means “shark.” That’s how we got our English translation: goblin shark.

25. Not all sharks are ferocious carnivores.

The bonnethead shark has long been observed to eat seagrass—up to 62.1 percent of gut content mass. Until recently it was unclear if they were digesting it. But in 2018 it was confirmed through stable isotope analysis that they actually were, making them the first known omnivorous shark.

26. There are multiple types of lantern sharks, including a dwarf lantern shark that doesn’t grow larger than 8 inches.

These sharks have bellies and fins that glow. So it’s thought that when there’s a predator swimming beneath them, the predator doesn’t know the difference between the shark and the light coming into the ocean from the sun.

27. Not all sharks are strictly ocean dwellers.

Bull sharks are unusual in that they can tolerate fresh water. Most sharks have to be in salt water because that’s what their bodies can handle—put them in fresh water and they’ll lose too much salt. But bull sharks are better able to retain salt in their bodies, so they can travel in fresh water. And in fact, in 1937, one was caught in Alton, Illinois, 1000 miles up the Mississippi River from the Gulf of Mexico, where you wouldn’t typically expect to encounter a shark.

28. Megalodon sharks were huge—maybe about 50 feet long.

But there are now theories that the measly great white shark, at less than half that size, may have caused them to go extinct. It was previously believed that megalodons went extinct around 2.6 million years ago, but when a group of paleontologists and geologists went back through the fossils and data, they pegged it at 3.6 million years ago—which just so happened to be the time that great white sharks were emerging. They were probably able to go head-to-head with younger megalodons and out-compete them for food.

29. Megalodon shark teeth could be around 7 inches long.

And in fact, you might want to be on the lookout for them. In 2018, a couple found a fossilized megalodon tooth on a beach in North Carolina.

30. An American president had a megalodon tooth.

Thomas Jefferson loved fossils and even kept some on display at the entrance of Monticello. Today, his megalodon tooth is at the Academy of Natural Sciences in Philadelphia. Of course, he signed it.

31. The song "Baby Shark" used to be sung by kids at 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 kids to sing at camps. But when Johnny Only turned it into the bop that we all get stuck in our heads today, he did change some things. In the original lyrics, the sharks attack people and even kill them. Peter Benchley would not approve.

Looking to Downsize? You Can Buy a 5-Room DIY Cabin on Amazon for Less Than $33,000

Five rooms of one's own.
Five rooms of one's own.
Allwood/Amazon

If you’ve already mastered DIY houses for birds and dogs, maybe it’s time you built one for yourself.

As Simplemost reports, there are a number of house kits that you can order on Amazon, and the Allwood Avalon Cabin Kit is one of the quaintest—and, at $32,990, most affordable—options. The 540-square-foot structure has enough space for a kitchen, a bathroom, a bedroom, and a sitting room—and there’s an additional 218-square-foot loft with the potential to be the coziest reading nook of all time.

You can opt for three larger rooms if you're willing to skip the kitchen and bathroom.Allwood/Amazon

The construction process might not be a great idea for someone who’s never picked up a hammer, but you don’t need an architectural degree to tackle it. Step-by-step instructions and all materials are included, so it’s a little like a high-level IKEA project. According to the Amazon listing, it takes two adults about a week to complete. Since the Nordic wood walls are reinforced with steel rods, the house can withstand winds up to 120 mph, and you can pay an extra $1000 to upgrade from double-glass windows and doors to triple-glass for added fortification.

Sadly, the cool ceiling lamp is not included.Allwood/Amazon

Though everything you need for the shell of the house comes in the kit, you will need to purchase whatever goes inside it: toilet, shower, sink, stove, insulation, and all other furnishings. You can also customize the blueprint to fit your own plans for the space; maybe, for example, you’re going to use the house as a small event venue, and you’d rather have two or three large, airy rooms and no kitchen or bedroom.

Intrigued? Find out more here.

[h/t Simplemost]

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14 Black Authors You Should Read Right Now

Pexabay, Pexels // CC0
Pexabay, Pexels // CC0

With the resurgence of the Black Lives Matter movement, works on anti-racism have been flying off the shelves of Black-owned bookstores. But anti-racism doesn’t start and end with philosophical theories—it’s also a matter of shifting your current reading patterns. If you’ve found yourself purchasing Stamped but not The Hate U Give or With the Fire on High, then you’re doing yourself a major disservice. To help you get started, here are some groundbreaking Black authors you should read—and a few suggested books for you to check out.

1. Jason Reynolds

Atheneum/Caitlyn Dlouhy Books, Amazon

Jason Reynolds has a true gift when it comes to describing the Black male experience. He began writing poetry at age 9 and published his first novel in 2014. With his books—more than 10 so far—he’s created a space for Black boys to see themselves on the covers of fiction as much more than victims. On his website, Reynolds acknowledges that “I know there are a lot—A LOT—of young people who hate reading. I know that many of these book haters are boys. I know that many of these book-hating boys, don't actually hate books, they hate boredom… even though I'm a writer, I hate reading boring books too.”

Add to Your TBR Pile: The Boy in the Black Suit, Ghost

2. Nic Stone

Nic Stone has been kicking down the door on issues that have been overlooked for decades. Through her books, she brings attention and nuance to subjects like grief, discrimination, and questioning one’s sexuality in a way that has rarely been seen before in Young Adult and Middlegrade fiction. Up until 2013, The New York Times bestselling author didn’t think she could write fiction. “Part of the reason I didn't think I could do it is because I didn't see anyone who looked like me writing the type of stuff I wanted to write (super popular YA fiction),” Stone writes in an FAQ on her website. “But I decided to give it a shot anyway. (Life lesson: If you don't see you, go BE you.)”

Add to Your TBR Pile: Dear Martin, Odd One Out

3. Angie Thomas

Angie Thomas made waves after the release of The Hate U Give, a New York Times Bestseller that was made into a critically acclaimed film. Thomas’s second novel, On the Come Up, takes place in Garden Heights about a year after the events of The Hate U Give. It follows a 16-year-old up-and-coming rapper who goes by the nickname Bri. As a former teen rapper herself, Thomas knows the topic well. Just don’t ask her to participate in a rap battle. “I hoped that with writing these scenes and with showing people the ins and outs of it and the internal part of it, of coming up with freestyles on the spot, that maybe—just maybe more people would respect it as an art form,” Thomas told NPR. “But I can't do it.”

Add to Your TBR Pile: The Hate U Give, On the Come Up

4. Brittney Morris

Simon Pulse/Amazon

In her debut novel, Slay, author Brittney Morris shows the ways that Black people are discriminated against in the gaming industry. In its review, Publisher's Weekly wrote, “This tightly written novel will offer an eye-opening take for many readers and speak to teens of color who are familiar with the exhaustion of struggling to feel at home in a largely white society.”

Add to Your TBR Pile: Slay

5. Nnedi Okorafor

Nnedi Okorafor is a Hugo and Nebula Award-winning Nigerian-American author who intertwines African mysticism and science fiction in her writing, masterfully addressing societal issues while showing us how the world can become a better place. Okorafor never envisioned a career as a writer; she planned to be an entomologist until, as a college student, she was paralyzed from the waist down after back surgery. She began writing to distract herself while she recovered, and never looked back. “Nigeria is my muse,” Okorafor told The New York Times. “The idea of the world being a magical place, a mystical place, is normal there.”

Add to Your TBR Pile: Binti, Akata Witch

6. Tiffany D. Jackson

If you love psychological thrillers and haven’t read Tiffany D. Jackson’s first two novels, you’re missing out: Jackson has an ability to twist elements of her story to include new perspectives while keeping readers second-guessing their own theories. Her writing was influenced by many of the authors she discovered in her teen years. “I was, and still am, a HUGE R.L Stein fan, so his Fear Street series took me into my teen years," she writes on her website. "But then I was introduced to Mary Higgins Clark, Toni Morrison, Maya Angelou, and Jodi Picoult, to name a few.”

Add to Your TBR Pile: Allegedly, Monday’s Not Coming

7. Nafissa Thompson-Spires

Nafissa Thompson-Spires catalogues the plights of the Black community with stories that are so intricate, they could be true. One story follows a Black cosplayer shot by police; another addresses post-partum depression. She also showcases the joy that surfaces throughout our lives, despite the hardships. Thompson-Spires’s writing has earned her comparisons to the likes of Paul Beatty, Toni Cade Bambara, and Alice Munro. “I think the goal of a writer should be to tell the truth in some way, even if it’s to tell it slant—or to imagine a better version of the truth," she told The Guardian. "We have to find ways to confront difficult subjects.”

Add to Your TBR Pile: Heads of Colored People

8. Justin A. Reynolds

Katherine Tegen Books/Amazon

No, Justin A. Reynolds isn’t related to Jason Reynolds, but he’s just as talented. In his debut novel, Opposite of Always, Reynolds uses common YA tropes in an innovative way; a star-crossed lovers plot with the added effect of time travel truly sets this story apart.

Add to Your TBR Pile: Opposite of Always, Early Departures

9. Tony Medina

Tony Medina, the first Creative Writing professor at Howard University, has published 17 books, and his fight for social justice is evident in his writing. In his graphic novel, I Am Alfonso Jones, Medina uses Hamlet as inspiration for explaining issues of police brutality and social justice to Young Adult readers.

Add to Your TBR Pile: I Am Alfonso Jones

10. Elizabeth Acevedo

Quill Tree Books/Amazon

The Black experience is not a singular one, and Elizabeth Acevedo—whose debut novel, The Poet X, was a New York Times bestseller and won the National Book Award for Young People’s Literature in 2018—expands the canon with beautifully detailed Afro-Latinx narratives. “I feel like it’s hard to dream a thing you can’t see," Acevedo said in an interview with Black Nerd Problems. "And I think growing up like I knew I loved music and I loved poetry and I loved the feeling of being with other poets and listening to other stories and thinking, like, I think I can do that just as good.”

Add to Your TBR Pile: The Poet X, With the Fire on High

11. N.K. Jemisin

N.K. Jemisin is a voice for the marginalized in science fiction. She has won a number of awards for her work, including a Nebula Award and two Locust Awards, and she was the first person to win three Hugo Awards for Best Novel in a row, for her Broken Earth trilogy. "I’ll use whatever techniques are necessary to get the story across and I read pretty widely," Jemisin told The Paris Review. "So when people kept saying second person is just not done in science fiction, I was like, well, they said first person wasn’t done in fantasy and I did that with my first novel. I don’t understand the weird marriage to particular techniques and the weird insistence that only certain things can be done in science fiction."

Add to Your TBR Pile: The City We Became, The Fifth Season

12. Renée Watson

Renée Watson uses her novels to address gentrification, discrimination, and what it’s like to grow up as a Black girl. “My motivation to write young adult novels comes from a desire to get teenagers talking," she said in an interview with BookPage. "I hope my books are a catalyst for youth and adults to have conversations with one another, for teachers to have a starting point to discuss difficult topics with students.”

Add to Your TBR Pile: This Side of Home, Piecing Me Together

13. Maika and Maritza Moulite

Inkyard Press/Amazon

In their book Dear Haiti, Love Alaine, Haitian-American sister-author duo Maika and Maritza Moulite have created an exciting and riveting story of self-exploration and the meaning of family. These two have already secured a publishing deal for their next novel, One of the Good Ones.

Add to Your TBR Pile: Dear Haiti, Love Alaine

14. Talia Hibbert

Although you may have heard her name more recently due to her USA Today bestselling novel Get a Life, Chloe Brown, Talia Hibbert isn’t a newcomer to the world of adult and paranormal romance: In books, she writes narratives that often follow characters who are diverse in race, body types, and sexuality—because, as her website bio states, “she believes that people of marginalised identities need honest and positive representation.”

Add to Your TBR Pile: Get a Life, Chloe Brown, A Girl Like Her

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