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  • Snake Island is located off the coast of Brazil, and from above it looks stunningly beautiful.

  • Unfortunately, it's also home to one of the deadliest snake species in the world and,

  • oh yeah, there are literally thousands of them.

  • "Snakes.

  • Why did it have to be snakes?"

  • The deadly snake that calls Snake Island its home is probably not something you've ever

  • heard of, and that's because this little speck of land off the coast of Brazil is the only

  • place you can actually find it.

  • It's called the golden lancehead, and the name is quite descriptivethe snake is

  • a lovely golden color and its head is shaped like a weapon of war, except if you get stuck

  • by a regular lance, you actually have a chance of survival.

  • Now, the golden lancehead is not the only member of the lancehead genus.

  • According to Atlas Obscura, lanceheads are common in Brazil and are responsible for around

  • 90% of all snakebite fatalities in that country.

  • If you're bitten by a lancehead in mainland Brazil and you don't receive medical treatment

  • you've got about a 7 percent chance of dying.

  • If you do receive medical treatment, you still have a 3 percent chance of dying, and your

  • symptoms might include kidney failure, brain hemorrhage, intestinal bleeding, necrosis

  • of muscular tissueyou know, standard stuff.

  • That's mainland lanceheads, though.

  • The venom of the golden lancehead is thought to be as much as five times more potent than

  • its wimpy mainland cousins, so yeah.

  • There's a great reason why Snake Island is off limits to the average tourist.

  • Believe it or not, golden lanceheads are not the sole slithery occupant of Snake Island.

  • Of course they aren't.

  • Snake Island is home to another snake species, called Sauvage's nail-eater.

  • Luckily for Snake Island's snail population, a 2005 study concluded that the island's population

  • of Sauvage's snail-eaters were basically the same species as those found on the mainland,

  • so unlike the golden lanceheads, there was no freakishly terrifying evolutionary trajectory

  • blessing them with snail-killing laser beams coming out of their eyes or anything.

  • And Sauvage's snail-eaters are non-venomous, and therefore mostly harmless to anything

  • that isn't a snail.

  • Okay, so, Snake Island has deadly snakes and that's horrifying, and it has non-deadly snakes

  • that are still sort of horrifying, but at least it doesn't also have giant cockroaches

  • and terrifying locusts or anything.

  • Except for the fact that Snake Island totally has giant cockroaches and terrifying locusts.

  • Yes, that's right.

  • According to Business Insider, anyone who's feeling brave enough to camp on the island

  • better make sure to clean up after themselves or else they will be, quote, "knee-deep in

  • cockroaches by morning."

  • And once you've got that tent up you'd should probably plan to sleep on a cot, because if

  • you make your bed on the ground you'll be able to feel the roaches swarming around under

  • you when you lie down.

  • The Vice team who visited the island reported:

  • "There are blue locusts and so many of these weird, prehistoric-looking cockroaches on

  • the ground at night that it crunches when you walk.

  • Place is f----d.

  • No one is allowed there for a reason.

  • Don't ever go."

  • As terrifying as all this sounds, we don't really know the exact number of golden lanceheads

  • on Snake Island.

  • Smithsonian says it's somewhere in the neighborhood of 2,000 to 4,000.

  • From there, the media loves to extrapolate on just what that means from a snakes-per-square

  • foot perspective, which is kind of a harder number to pin down.

  • Some researchers have guessed that the island has a snake density of one to five snakes

  • for every 3 square feet of surface area, which is plenty.

  • They also chill up in the trees, so you might not even see them if you're only looking on

  • the ground.

  • "So even though we don't see snakes right now, you're saying there are snakes here?”

  • Ohhh yeah.

  • They are everywhere, but you have to find them."

  • On the other hand, Business Insider says visitors to Snake Island can expect to see one snake

  • every 10 or 15 minutes, at least until they actually travel inland.

  • Closer to the center of the island, the snake density is more like one snake every 54 square

  • feet, which is kind of a long way from those other scary estimates.

  • Not that you'll stay alive long enough to reach the center of the island.

  • You're probably wondering, "How bad can it be?"

  • Because the bite from, say, a black mamba shuts down the nervous system and paralyzes

  • its victims eventually leading to death in 100% of cases, unless the victim is really

  • darn close to a vial of antivenom.

  • So really, it couldn't possibly get any worse than that.

  • Except that black mamba venom doesn't liquify your insides, so there's that.

  • According to Vice, "liquifying your insides" may be an exaggeration but it's likely that

  • no one will ever really know for sure because although there have been surprisingly few

  • deaths from golden lanceheads, no one has actually ever lived long enough to make it

  • to a hospital.

  • So it's not like doctors can put patient notes into a database or anything.

  • If one of these were to bite us, we'd have six hours to get off the island and to a hospital."

  • "Well...up to."

  • "Up to."

  • The Brazilian mainland is about eight hours away by sea, so you'd probably have time to

  • die a couple times before you could get anywhere near civilization.

  • As molecular biologist Bryan Fry said on an episode of 60 Minutes:

  • "With these snakes it will be a particularly painful death.

  • You're going to die screaming."

  • The crazy thing about natural substances that can make people die screaming is that they

  • often have medicinal properties.

  • Puffer fish toxin, for example, could one day be turned into a pain-relieving drug for

  • cancer patients.

  • Golden lancehead venom is showing some promise, tooit's already been used to make blood

  • pressure medication, and Smithsonian says it might also have applications in treating

  • heart disease, blood clots, and circulation problems.

  • That doesn't mean if you have high blood pressure you should go to Snake Island and let a golden

  • lancehead bite you, because medicines that are derived from powerful toxins need to be

  • extracted and refined in a lab.

  • But it also means that it's probably not a good idea to just go and drop a bomb on the

  • island, either, no matter how tempting that might be to most sane people.

  • According to local legend, the golden lancehead was first introduced to Snake Island by pirates,

  • who put them there to act as a sort of legless, venomous watch dogs.

  • When you think about it though, that seems really counterproductive.

  • Pirates are cool and everything, but it doesn't seem super likely that they trained venomous

  • snakes to only bite treasure-stealing scallywags and not, you know, pirates.

  • As fun as that particular legend is, pirates probably didn't have anything to do with the

  • snakes on Snake Island.

  • According to the Smithsonian, the golden lancehead has been around since well before the golden

  • age of piracy.

  • So yeah, Snake Island's pirate/snake link is tenuous, but a tenuous relationship with

  • the facts has never really bothered the Discovery Channel.

  • In fact they somehow managed to get permission from the Brazilian government to bring a whole

  • bunch of treasure hunters to Snake Island, where they proceeded to find nothing except

  • a bunch of snakes.

  • The series, Treasure Quest: Snake Island, appears to have only been shot on the actual

  • Snake Island for one seasonafter that the treasure-questers branched out into the

  • jungles of Paraguay, which are blissfully free of golden lanceheads.

  • We're sure it was absolutely 100 percent because their "clues" pointed away from the island,

  • and that it had nothing to do with thousands of deadly snakes or with the Brazilian government

  • just not really wanting them stomping around on Snake Island for another couple seasons.

  • The golden lancehead was probably always dangerous, but the trajectory that led to them being

  • a special kind of dangerous started roughly 11,000 years ago when sea level rise separated

  • Snake Island from the mainland.

  • Once they found themselves isolated, the golden lancehead's ancestors kind of had the perfect

  • evolutionary conditions for becoming one of the most venomous snakes in the world.

  • According to the Smithsonian, they had no ground predators, which means there weren't

  • any animals picking them off, therefore interfering with their efforts to produce ever-increasingly

  • venomous babies.

  • There was also no prey on the ground, so to find food the golden lancehead's ancestors

  • had to go up into the trees and kill migratory birds.

  • But killing birds with venom is problematic because a bird will fly away as soon as it's

  • bitten, so even if it dies a few minutes later, it could have flown a long way away from the

  • snake that bit it.

  • That kind of defeats the purpose of actually using the venom in the first place.

  • So the golden lancehead had to develop especially toxic venomsomething that would incapacitate

  • its victim almost immediately.

  • By the time those birds hear hissing, it's already too late.

  • "Hissssssss.”

  • And thousands of years later, visitors to Snake Island can see the results of that evolutionary

  • process up close and in person.

  • That is, if they don't instantly die because they were bitten by a golden lancehead.

  • Isn't evolution a wondrous thing?

  • So the thing about being a super-ultra-deadly snake on an isolated island in the Atlantic

  • Ocean with potentially life-saving properties in your venom is that is that you are likely

  • to become a valuable commodity.

  • According to the Smithsonian, wildlife smugglerssometimes called "biopirates" — sneak

  • onto the island so they can catch golden lanceheads and sell them on the black market.

  • Evidently, there's demand for illegally procured golden lanceheads, both for venom and for

  • the distinction of owning a super deadly pet.

  • "People keep these as pets.”

  • Oh yeah, yeah."

  • Before you scoff at the stupidity of anyone who would go to Snake Island illegally so

  • they can steal live specimens of one of the world's most deadly snakes, well, consider

  • this: The black market value of a single golden lancehead is between $10,000 and $30,000.

  • Still probably not worth your insides melting or anything, but at least you can sort of

  • grasp why certain desperate individuals might want to take the chance.

  • There's still a lighthouse on Snake Island, but at some point in the 1920s the Brazilian

  • government got wise and decided that it maybe wasn't such an awesome idea to have it staffed

  • 365 days a year.

  • Since that decision was made, it's been automated, but "automated" does not necessarily mean

  • "maintenance-free," which means the Brazilian government still has to send someone to the

  • island every year to perform routine maintenance on the lighthouse.

  • Just imagine being the person who pulls the short straw for that assignment.

  • According to Vice, the Brazilian Navy gets dibs on inspecting and maintaining the Snake

  • Island lighthouse, and we very much hope that the workers who commit to the trip each year

  • get some serious danger pay because the lighthouse isn't exactly snake-proof.