Can't believe anyone would consider eating random fruit let alone a radiologist. You must be pretty smart to become a radiologist right?
> Sadly, the pain was exacerbated by most alcoholic beverages
But the account of their ordeal seems to be fairly detailed. So they can't have been that drunk!?
For an excellent example of this, see ignorant comments about the medical field on Hacker News.
these four entries are dumpsters.
what a fallen fruit, indeed.
There are loads of toxic flowers, plants, and trees.
As for your question. I guess because people generally don't live like Into The Wild .
After I made the mistake to touch a stinging nettle, I took such warnings more seriously.
Also getting rid of those things is pain in the ass as the seeds can remain in ground for up to 10 years before the plant starts to grow
Now that I know this tree exists, I have little doubt I'd die after a hike in the Caribbean.
It's really not that big a deal. On most islands they are clearly marked with a red band. Don't touch them, don't eat strange fruit off the ground, and don't stand under them in the rain and you'll be fine. Even if not marked, just don't go groping trees. Don't worry about breathing the air, that part is sensationalist bullshit.
What's more dangerous, as tour guides will be happy to tell you, are coconut palms: Falling coconuts are responsible for more deaths per year than shark attacks. (Although that says more about the rarity of shark attacks, I guess...)
Oh well, atlasobscura seems to need the clicks.
And then there is this: "After all, it is rumored to have killed the famed explorer, Juan Ponce de Leon." By which they actually mean, a few paragraphs later, that the arrows that killed him "may have been" tipped with it. (If it had just been the arrows and not the irritating sap, surely he'd still be with us today.)
I've seen a few atlasobscura links on HN, usually I already know what the topic will be from the headline. Something feels a bit off about the site, almost like they exist for no purpose but to generate traffic.
The article did not mention it, but the poison severity of the tree varies quite a bit with season. Once the fruit has all fallen, the milky irritant on the tree has dried or washed off. You should still avoid staying under them in the rain as mentioned above.
Basic idea is that you need to clean yourself with a washcloth or loofah. The oil from the plant is like automotive grease. You need to scrub it off.
Like my dad says, "you haven't been proper dirty till you've had to use Dawn as shampoo".
Brake dust, OTOH, now there you need to scrub, preferrably with a stiff nail brush.
I get exposure to poison ivy on a regular basis but I know there's a 2h grace period in which I do all the yardwork around that stuff then jump in the shower. A normal shower takes care of it all.
Imagine my surprise a few years ago when I googled and discovered that Poison Ivy isn't a plant, it is a whole family of plants with quite a bit if variation in the family.
One thing to watch out for is root runners on the sides of trees. Some varieties climb trees for more light and the only part you see is the fuzzy brown roots--which are just as irritating as the leaves if you touch them.
Step 1: Touch the plant with your hand, wait 1 hour for negative effects to develop.
Step 2: If step 1 produces no negative effect, touch the plant to more sensitive skin, such as the inside of your forearm. Wait another hour for negative effects to develop.
Step 3: If step 2 produces no negative effect, touch the plant to the area around your mouth. Wait another hour.
Step 4: After touching your mouth with the unknown plant and seeing no ill effects, chew up a tiny bite of the plant in your mouth and spit it out, and then wait another hour.
Step 5: Ingest a tiny amount of the plant and wait an hour for negative effect.
Step 6: If no ill effects are felt at this point, the plant is likely safe for you to eat.
This is a very long and difficult process, but it's the safest way to determine if the plant will kill you. If you see a lot of one type of plant that you think you might be able to eat, it's worth the wait to figure out if it's poisonous or not. Once you've identified an edible plant, you can continue eating it without going through this process again.
Also, often (always?) the poison's in the dose. A little might be safe to eat, more not so much. So I'd go really easy when eating something new.
1. Mash it and hold in the pit of your elbow for an hour. If no irritation, go to step 2.
2. Hold it in your mouth for an hour. If no irritation, go to step 3.
3. Eat a bite and wait a few hours. If no irritation, go to step 4.
4. Eat a small amount and wait a few hours. If no irritation, it's probably safe to eat.
It's on page 103 in the FM 21-76 US ARMY SURVIVAL MANUAL: http://www.preppers.info/uploads/FM21-76_SurvivalManual.pdf
- poison takes 1 hour to kill you, party is in 1 hour.
- you have 4 prisoners you don't mind sacrificing to find out which bottle is poisonous but obviously you'll need to do all your sampling now because otherwise you won't know which bottle not to use in time for the party.
EDIT:16 not 17 bottles of wine.
Except 17. Fencepost error on my part maybe?
Use binary search to find the poisoned bottle among bottle 1 to 16. If you fail to find a poisoned bottle, it is the 17th
Common presentation uses 1000, gives it away to use a power of two.
A really fun extension to it is to suppose that you use the same criteria (a thousand bottles, consumption of the smallest amount will kill, but after a delay that means you must perform a one-pass test) but _two_ bottles are poisoned. What is the minimum number of prisoners you need for your test to find the two poisoned bottles precisely and what is the procedure?
(This is _substantially_ harder.)
I get that it's a game, but can't let this slip into the memesphere unchecked.
People are a superset of prisoners. Some of our largest problems as a society are a result of our not acting as such.
I quite like the mathematics of the puzzle, I also like justice and am aware that justice is a product of language in many instances, as many people interact with the world through language without giving much thought to it.
In fact, my statement was meant to ridicule the assumption that prisoners are worthless to point out they are people.
This is the kind of problems that AI machines would try to solve, wrongly. Humans still score better understanding that some theoretical problems must not be solved.
It will pass all your tests without causing any irritation but still kills you in the end:
"There are no negative symptoms from eating this fungus until 6–24 hours after ingestion"
Urushiol (Poison Ivy et al.) usually takes about 4-6 hours to start showing symptoms.
"But how is that possible? He's surrounded by fruit!"
3 minutes without air
3 days without water
3 weeks without food
So you're probably not going to die without food if you go even for some days without it. In fact, many people regularly fast for days on end, some (such as people on hunger strikes) have fasted for weeks.
Of course, all of the above rules of thumb are subject to modifications based on things such as the amount of physical exertion you're under, your health, the weather, etc. If you're doing lots of exercise in the heat, you're going to need a lot more water than if you're lying still in the shade.
Not necessarily. Plants aren't so stupid and there are poisons designed to catch you at the middle and long term. Peas have those for example.
Better studying a little botany instead. Euphorbiaceae is a wery widespread family, relatively easy to recognize by its very specialized flowers. All are very poisonous and you can't eat it, but some of them can still be handy. Can provide you wit car tires, torches, fuel, killing your enemies and treatments for diarrhea, expelling worms and, as a nice special bonus, remedy for genital herpes. Yeah, they know what a real survivor needs.
I am quite puzzled by this quote, in evolutionary terms, humans are very recent. I highly doubt that humans have been around for long enough for plants to evolve to suite humans specifically, rather than mammals in general.
Fruits designed for dinosaurs-birds and fruits designed for mammals are often very different in its chemical composition.
Learned about this fascinating tree in the equally fascinating book "1491" by Charles Mann.
There's a drug that Colombians call the Devil's Breath. Which is believed to be scopolamine, which had previously been used as truth-serum. The rumors go that the drug makes you "zombified" and compliant, willing to do whatever is suggested to you. It's my understanding that the drug is extracted from belladonna though it's hard to know what is actually true about the rumors. Vice has a video about it, though I haven't had the opportunity to watch it yet.
Poisonous plants such as poison ivy often do because people will avoid the plants but will tromp on others (thus the poison plants survive readily on the edge since there is less competition).
That being said if the plant is exceedingly a nuisance like mosquitos it might prefer not to live on the edge (as humans will actively destroy it).
> Yeah I was thrashing around in pain, until I cracked a joke and felt emotionally better. That's why I picked up my camera and decided to chronicle my adventure. The thing about unbelievable pain is that sometimes it's so unbelievable that you can't believe it and there is some humor in that. For people like me anyway.
Takes it pretty well, but it sure does look painful.
We'd appreciate it if you'd (re)-read the following, which give an idea of the kind of discussion we're hoping for here:
Compare the fruit, leaves, and bark.
Not that we don't have issues with walnuts, either..
I've never seen a manchineel tree. Perhaps they do look quite different in real life. But based on the photographs I've seen (e.g. on http://psytreasure.com/little-apple-death-deadly-plant-used-...) there's a risk of confusing the two plants.
From what I can tell based on photographs (here walnut = Juglans regia):
Leaves: Individual leaves are very similar but walnut leaves have a pinnate arrangement, manchineel don't.
Fruit: If they're shaped like apples, or are yellowish, they're manchineel. However, manchineel are often more oval and coloured similarly to walnut (see photo on psytreasure page).
Bark: There's enough overlap here that I wouldn't rely on it.
Location: Manchineel trees are usually located on the coast or near water. Walnut trees can be found anywhere.
Range: Manchineel trees are located around the Caribbean
Walnut is Eurasian, but has North American relatives (e.g. black walnut).
Advice: If you're near the Caribbean and see what looks like a walnut tree, avoid it.
More general advice: If you're not sure what a plant is, don't eat it.
Lack of range overlap makes misidentification by someone from outside the range more likely.
Pretty harmless, but they've been known to drag away mice.
"Do Not Eat, or Touch, or Even Inhale the Air Around the Manchineel Tree"