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7 Absolutely Insane Animal Defense Mechanisms

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In 2012, scientists recorded footage of a never-before-seen defense mechanism deployed by a small species of deep-sea squid: When threatened, the squid attacks its predator and then pulls away, breaking off the tip of its own arm and leaving it behind as a distraction. The arm continues to glow and twitch, creating a diversion and enabling the squid to escape.

But this squid isn't the only creature with a bizarre way of defending itself. Here are several other ways animals try to save their own lives, or the lives of their comrades.

1. The Lizard That Shoots Blood From Its Eyes

The Texas Horned Lizard is a scary-looking creature. Brown, plump and perfectly camouflaged in its native sandy environment, its first line of defense is its spiky demeanor. If the sharp spikes and horns don't ward off predators, the lizard steps it up a notch and squirts a well-aimed stream of blood out of its eyes. The stream of blood, which can go as far as 5 feet, is mixed with a foul-tasting chemical that wards off predators. But this odd weapon comes at a cost: The lizard may release a third of its total blood supply this way, amounting to two percent of its body mass.

2. The Hairy Frog That Breaks Its Own Bones

Image credit: Blackburn/New Scientist

What if every time you felt threatened, your first and only method of defense was to break your own bones and use them for weapons? Meet the hairy frog, a Central African species that, despite its name and fuzzy appearance, isn't hairy at all. When breeding, the male frogs develop thin strands of skin along the sides of their bodies that resemble hair. These strands also, in theory, allow the frogs to take in more oxygen while they watch over their eggs. But what's really compelling about this frog is its ability to crack its own toe bones and push them through their skin to form sharp claws, great for warding off would-be attackers.

While it's not completely clear what happens to the bones after the threat of attack subsides, researchers believe the bones slide back under the skin when the frog's muscles relax.

3. The Newt That Turns Its Ribs Into Spikes

Image credit: Peter Galaxy/Wikimedia Commons

The hairy frog isn't the only amphibian that uses its bones for weapons. When attacked, the Spanish ribbed newt shifts its ribs forward at an angle and pushes them through its stretched skin. The resulting effect is a row of spikes on either side of its body. Like the hairy frog, the newt has to force the bones through its skin every time it is attacked, but the mechanism seems to cause little or no harm to the creature. "Newts, and amphibians in general, are known to have an extraordinary ability to repair their skin," says zoologist Egon Heiss of the University of Vienna in Austria.

4. The Termites That Blow Themselves Up

Image credit: R. Hanus/Nature

Talk about taking one for the team. When under attack, a species of termites found in the French Guiana rain forests sends older worker bugs on suicide missions to defend the whole colony. These older bugs, no longer as useful to the pack as they once were, come equipped with "explosive backpacks" that, over a lifetime, fill with toxic crystals produced by glands in the abdomen. When mixed with salivary gland secretions, these crystals create a toxic liquid that explodes on enemies, paralyzing them and killing the worker at the same time.

5. The Hagfish That Slimes Its Enemies

Hagfish are eel-shaped marine animals with the incredibly useful ability to slime their enemies. When threatened, the hagfish emit a slime from their pores that, when mixed with water, expands into a gelatinous goo that can either trap predators or suffocate them by clogging their gills. The video above shows hagfish being attacked 14 separate times by sharks and other big fish, and coming out completely unharmed. Each predator took one bite before immediately spitting the hagfish out and swimming away, gagging. "The hagfish, uninjured and oblivious, just carried on feeding. Its defence is so effective that it can totally ignore the fact that a shark just tried to bite it," says Discover Magazine.

6. The Sea Cucumber That Shoots Organs Out of Its Anus

Sea cucumbers can seem pretty boring. There are some 1,250 known species of these sedentary creatures in the world, and many of them do indeed look like cucumbers. But when it comes to survival, things get interesting. Like starfish and sea urchins, sea cucumbers are echinoderms, and they can regenerate lost body parts if necessary. This comes in handy when they're threatened. The sea cucumber will expel their internal organs, which are sticky and sometimes contain a toxic chemical that can kill predators.

7. The Opossum That Plays...Well, You Know

You can't do a roundup like this without at least mentioning the opossum. We typically refer to this creature's infamous defense mechanism as "playing dead," but there's actually nothing playful about it; the act is completely involuntary. Under intense fear, opossums fall into a comatose-like state that can last for hours, long enough to convince any predator that the opossum is already dead. Also unappetizing: Fear causes these animals to emit a corpse-like smell that only adds to their act.

This story originally appeared last year.

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5 Things We Know About Stranger Things Season 2
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Netflix

Stranger Things seemed to come out of nowhere to become one of television's standout new series in 2016. Netflix's sometimes scary, sometimes funny, and always exciting homage to '80s pop culture was a binge-worthy phenomenon when it debuted in July 2016. Of course, the streaming giant wasn't going to wait long to bring more Stranger Things to audiences, and a second season was announced a little over a month after its debut—and Netflix just announced that we'll be getting it a few days earlier than expected. Here are five key things we know about the show's sophomore season, which kicks off on October 27.

1. WE'LL BE GETTING EVEN MORE EPISODES.

The first season of Stranger Things consisted of eight hour-long episodes, which proved to be a solid length for the story Matt and Ross Duffer wanted to tell. While season two won't increase in length dramatically, we will be getting at least one extra hour when the show returns in 2017 with nine episodes. Not much is known about any of these episodes, but we do know the titles:

"Madmax"
"The Boy Who Came Back To Life"
"The Pumpkin Patch"
"The Palace"
"The Storm"
"The Pollywog"
"The Secret Cabin"
"The Brain"
"The Lost Brother"

There's a lot of speculation about what each title means and, as usual with Stranger Things, there's probably a reason for each one.

2. THE KIDS ARE RETURNING (INCLUDING ELEVEN).

Stranger Things fans should gear up for plenty of new developments in season two, but that doesn't mean your favorite characters aren't returning. A November 4 photo sent out by the show's Twitter account revealed most of the kids from the first season will be back in 2017, including the enigmatic Eleven, played by Millie Bobby Brown (the #elevenisback hashtag used by series regular Finn Wolfhard should really drive the point home):

3. THE SHOW'S 1984 SETTING WILL LEAD TO A DARKER TONE.

A year will have passed between the first and second seasons of the show, allowing the Duffer brothers to catch up with a familiar cast of characters that has matured since we last saw them. With the story taking place in 1984, the brothers are looking at the pop culture zeitgeist at the time for inspiration—most notably the darker tone of blockbusters like Gremlins and Indiana Jones and the Temple of Doom.

"I actually really love Temple of Doom, I love that it gets a little darker and weirder from Raiders, I like that it feels very different than Raiders did," Matt Duffer told IGN. "Even though it was probably slammed at the time—obviously now people look back on it fondly, but it messed up a lot of kids, and I love that about that film—that it really traumatized some children. Not saying that we want to traumatize children, just that we want to get a little darker and weirder."

4. IT'S NOT SO MUCH A CONTINUATION AS IT IS A SEQUEL.

When you watch something like The Americans season two, it's almost impossible to catch on unless you've seen the previous episodes. Stranger Things season two will differ from the modern TV approach by being more of a sequel than a continuation of the first year. That means a more self-contained plot that doesn't leave viewers hanging at the end of nine episodes.

"There are lingering questions, but the idea with Season 2 is there's a new tension and the goal is can the characters resolve that tension by the end," Ross Duffer told IGN. "So it's going to be its own sort of complete little movie, very much in the way that Season 1 is."

Don't worry about the two seasons of Stranger Things being too similar or too different from the original, though, because when speaking with Entertainment Weekly about the influences on the show, Matt Duffer said, "I guess a lot of this is James Cameron. But he’s brilliant. And I think one of the reasons his sequels are as successful as they are is he makes them feel very different without losing what we loved about the original. So I think we kinda looked to him and what he does and tried to capture a little bit of the magic of his work.”

5. THE PREMIERE WILL TRAVEL OUTSIDE OF HAWKINS.

Everything about the new Stranger Things episodes will be kept secret until they finally debut later this year, but we do know one thing about the premiere: It won't take place entirely in the familiar town of Hawkins, Indiana. “We will venture a little bit outside of Hawkins,” Matt Duffer told Entertainment Weekly. “I will say the opening scene [of the premiere] does not take place in Hawkins.”

So, should we take "a little bit outside" as literally as it sounds? You certainly can, but in that same interview, the brothers also said they're both eager to explore the Upside Down, the alternate dimension from the first season. Whether the season kicks off just a few miles away, or a few worlds away, you'll get your answer when Stranger Things's second season debuts next month.

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Everything That’s Leaving Netflix in October
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NBC - © 2012 NBCUniversal Media, LLC

Netflix subscribers are already counting down the days until the premiere of the new season of Stranger Things. But, as always, in order to make room for the near-90 new titles making their way to the streaming site, some of your favorite titles—including all of 30 Rock, The Wonder Years, and Malcolm in the Middle—must go. Here’s everything that’s leaving Netflix in October ... binge ‘em while you can!

October 1

30 Rock (Seasons 1-7)

A Love in Times of Selfies

Across the Universe

Barton Fink

Bella

Big Daddy

Carousel

Cradle 2 the Grave

Crafting a Nation

Curious George: A Halloween Boo Fest

Daddy’s Little Girls

Dark Was the Night

David Attenborough’s Rise of the Animals: Triumph of the Vertebrates (Season 1)

Day of the Kamikaze

Death Beach

Dowry Law

Dr. Dolittle: Tail to the Chief

Friday Night Lights (Seasons 1-5)

Happy Feet

Heaven Knows, Mr. Allison

Hellboy

Kagemusha

Laura

Love Actually

Malcolm in the Middle (Seasons 1-7)

Max Dugan Returns

Millennium 

Million Dollar Baby

Mortal Combat

Mr. 3000

Mulholland Dr.

My Father the Hero

My Name Is Earl (Seasons 1-4)

One Tree Hill (Seasons 1-9)

Patton

Picture This

Prison Break (Seasons 1-4)

The Bernie Mac Show (Seasons 1-5)

The Shining

The Wonder Years (Seasons 1-6)

Titanic

October 19

The Cleveland Show (Seasons 1-4)

October 21

Bones (Seasons 5-11)

October 27

Lie to Me (Seasons 2-3)

Louie (Seasons 1-5)

Hot Transylvania 2

October 29

Family Guy (Seasons 9-14)

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