15 Ways the ‘80s Changed Music

A number of technological and cultural breakthroughs in the ‘80s ripped genres apart, created others from scratch, and ensured for the rest of our lives that great artists also had to be hot.

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The natural world is full of horrors, and if you've spent enough time on this website, you know that many of these horrors exist just behind the tenuous cloak of sanity that keeps us from screaming every time we leave the house. And sure, a lot of nature's creatures seem harmless, but then they open their mouths ...

Hagfish Have Alien Jaws

The 7 Most Terrifying Mouths in Nature

We've already covered the hagfish's appetizing ability to produce copious amounts of grotesque, suffocating slime. But we saved you from the horror of seeing what it looks like when it opens its mouth. Let's do that now.

Scientists refer to the vagina dentata that is the hagfish's face as "two pairs of tooth-like rasps on the top of a tongue-like projection." We can only describe it in the language of screams.

The 7 Most Terrifying Mouths in Nature


Just to add insult to horror, it turns out that the hagfish doesn't even really need a mouth, considering that it can actually eat with its skin. It generally gets its nutrition from swimming around in putrid waters around decomposing corpses and absorbing the delicious corpse juices through its pores. It seems like the only reason it has four rows of yellow fangs is because God had to match a quota for horrible things.

The 7 Most Terrifying Mouths in Nature

He might also have been feeling a tad insecure.

The Leatherback Sea Turtle Is Full of Daggers

The 7 Most Terrifying Mouths in Nature

The leatherback sea turtle is one of those animals you can post on your friend's Facebook page to cheer them up after a shitty day. Because damn, look at the cute little guy.

The 7 Most Terrifying Mouths in Nature

"There is no reason I shouldn't be flying right now."

But if you're utilizing the leatherback turtle for its powers of adorableness, make sure that you don't take a picture of it while it's yawning, because oh God, Jesus no, it looks like the sarlaac.

Those hundreds of jagged stalactites that line the turtle's mouth and esophagus all the way down to its horrible, horrible gut are called papillae, and they exist because the universe hates beauty, and also because the leatherback turtle's diet consists entirely of jellyfish and other soft-bodied, slimy invertebrates. Anyone who's ever tried to catch a jellyfish with two spoons would give their left nut for a fork, which is why the turtle is equipped with its own murder cavern. Those jellyfish are going nowhere.

The 7 Most Terrifying Mouths in Nature

"Hey, I accidentally swallowed a Rolex. Why don't you reach your arm in and fish it out?"

Leatherbacks need an efficient funneling system to deposit their prey directly into their stomach, because with nearly zero nutrients in a jellyfish, the turtle needs to consume around 73 percent of its body weight every day. That's a lot of time spent chasing jellyfish that the turtle can't waste on inefficiency.

Unfortunately, the turtle can't tell the difference between jellyfish and plastic bags, so the cute and cuddly leatherback turtle is facing extinction from floating debris. And that sucks, because it's just as important to preserve nature's horror as it is to preserve its beauty. It reminds us of who's in charge.

The 7 Most Terrifying Mouths in Nature

"One at a time, minions! Everyone will get their fair share of turtle loving."

The Vampire Fish Is Just How It Sounds

The 7 Most Terrifying Mouths in Nature

You already know piranhas as the little ravenous balls of teeth that eat everything, but have you ever wondered what eats piranhas? We're glad you asked! Meet the payara, also known as the "vampire fish." That up there with it is Jeremy Wade, a British biologist who apparently isn't too attached to his nose.

You have to be toting some pretty hardcore weaponry to survive in the Amazon, and the vampire fish is packing a mouth full of knives designed to shank other fish prison-yard style. The teeth are so long -- up to 6 inches -- that it has to sheathe them in a holster built into the front of its face.

The 7 Most Terrifying Mouths in Nature

Yes, it stabs itself in the sinuses every time it closes its mouth.

They are closely related to piranhas, and piranhas also constitute most of their diet. It's like a monster that has evolved to eat other monsters. And while there have been no reports of a payara stabbing people in the kidneys and making off with their wallets, it's probably still a good idea not to go into the water.

Imagine you're alone in the dark, briny depths of the ocean, detached from the rest of your diving team, with nothing but heavy blackness and silence all around you. Then, quietly at first, you hear the sound of high-pitched voices approaching you. "Come play with us!" they say. "We want to be friends!"

The 7 Most Terrifying Mouths in Nature

"You know what's great about human flesh, Boris?" "Everything, Maurice. Everything."

Appearing only in deep water under cover of night, the cookie cutter shark is only 2 feet long, but it has the largest teeth relative to its size of any shark, contorting its face into a terrifying Bond-villain smile.

The 7 Most Terrifying Mouths in Nature
Norbert Wu

Admit it. You're all just trying not to stare at its mighty finsticles.

As small as it is, the cookie cutter prefers to inflict hit-and-run attacks. As its name suggests, its signature move is to use the razor-sharp cookie cutter built into its face to quickly rip a circular chunk out of whatever tasty piece of flesh it comes across. Like the Flash, but attacking you with a melon baller. That's why its victims wind up looking like this:

The 7 Most Terrifying Mouths in Nature

Either that or they put out their cigars on corpses.

And they're not picky about what they clamp onto. Whales, dolphins, other sharks and even submarines bear the circular scars of cookie cutter attacks. And in 2009, marathon swimmer Michael Spalding came out of the water after a midnight swim with an inch deep circular piece missing from his leg. Thanks, Mike. Now they know what we taste like.

Penguins Are Stashing Teeth in Their Beaks

The 7 Most Terrifying Mouths in Nature

You'd probably have to agree that there's nothing scary about a penguin. If there was, they wouldn't keep making animated children's movies about them tap dancing. But what Happy Feet never cared to show you, for obvious reasons, is what a penguin looks like with its beak open.

The 7 Most Terrifying Mouths in Nature

At this point, Mr. Freeman stopped narrating and started screaming.

Once you start the journey into the center of a penguin, it's teeth all the way down. There are teeth in their beaks, teeth on their cheeks, teeth on their tongues, and probably teeth on the backs of their eyeballs if you ever care to check (we don't recommend it).

The 7 Most Terrifying Mouths in Nature
Liam Quinn

This is why you never see any penguin dentists.

Because penguins swallow their food alive and wriggling, they need some way to both keep hold of their prey and maximize its suffering. The penguin's spiny tongue and mouth parts work like a conveyor belt to keep things moving in one direction -- and it's not someplace anyone wants to go.

The 7 Most Terrifying Mouths in Nature
Liam Quinn

"JESUS CHRIST! I think I'll just starve, thanks."

We already have a lot of respect for the woodpecker for having the highest density of dick references in a single name, but while we're discussing large, phallic protrusions, check out the woodpecker's tongue, which suggests that it is definitely compensating for something.

The 7 Most Terrifying Mouths in Nature

"I appreciate the offer, but I think we'll just stick to the full sex, thanks."

The woodpecker basically has a gaffing hook for a tongue. Not only is it up to three times the length of the bird's beak, but it's tipped with a barbed spearhead that impales bugs in trees and drags them screaming to their end.

The 7 Most Terrifying Mouths in Nature

Oh, excellent. It turns corners.

You might be wondering how the woodpecker keeps this whole thing inside its head. Even if you weren't wondering that, we're going to tell you anyway. You see, when it's not using it to stab things, the woodpecker wraps its entire tongue around the back of its skull, behind its eyeball, and then back into its nostril, like so:

The 7 Most Terrifying Mouths in Nature

Every party has that one guy who's all "Hey, look what I can do!" Woodpecker parties are full of those guys.

The Pacu Has People Teeth

The 7 Most Terrifying Mouths in Nature

We're going back to the Amazon now, if only because it seems like the world's premier dumping ground for Lovecraft-style eldritch horror. For instance, nature saw fit to create something called the pacu fish. It just looks like a pretty ordinary fish until it opens its mouth, and suddenly you can think only in nightmares. In a remarkable (though incredibly disturbing) example of evolution repeating itself, the pacu fish has a human mouth.

The 7 Most Terrifying Mouths in Nature

Several human mouths.

Why would nature do this to us? Well, it's the same reason we have them -- teeth like ours are able to chew anything, and unusually for a fish, their favorite foods are seeds and nuts.

You'd be tempted to make a bad joke here about "keeping your nuts out of the Amazon River," at which point we'd be forced to tell you that, all jokes aside, the pacu will in fact eat your testicles. That's why Papua New Guineans have nicknamed it the "ball cutter."

The 7 Most Terrifying Mouths in Nature

"Testicle trap," "sack hacker," "jewel thief," "plum poacher" ... all of these could work.

The pacu was introduced to Papua New Guinea in the 1990s to provide a local food source (because people just love eating something that looks like man contorted into an eternal scream), and since then, the "nut"-eating bastards have been credited with the deaths of at least two men in the region from a combination of blood loss and shame. Happy swimming, guys.

The 7 Most Terrifying Mouths in Nature
The Telegraph

"Insert here."

Monte Richard is a columnist at DaftGadgets.com, Warren Tilson has a book, and E. Reid Ross lives in the Craption Forums.

For more nightmare fuel, check out 7 Terrifying Giant Versions of Disgusting Critters and 7 Terrifying Prehistoric Creatures (That Are Still Around).

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