[HN Gopher] The mystery of why one ant species goes after larger...
       ___________________________________________________________________
        
       The mystery of why one ant species goes after larger foes (2018)
        
       Author : tosh
       Score  : 224 points
       Date   : 2020-10-04 12:06 UTC (10 hours ago)
        
 (HTM) web link (www.nationalgeographic.com)
 (TXT) w3m dump (www.nationalgeographic.com)
        
       | sradman wrote:
       | The paper _Prey specialization and chemical mimicry between
       | Formica archboldi and Odontomachus ants_ [1]
       | 
       | > Beyond providing natural history insights into the relationship
       | between these species, this study expands our knowledge of an
       | important insect chemical phenotype. The intraspecific
       | variability in F. archboldi cuticular hydrocarbon profiles is
       | among the greatest reported for social insects and provides a
       | unique case of how non-parasitic species can generate parasite-
       | like chemical-mimic phenotypes.
       | 
       | Formica archboldi (headhunter) ants [2]:
       | 
       | > ...are known for their abnormal behavior, which includes the
       | collection and storage of Odontomachus (trap-jaw) ant skulls.
       | 
       | [1] https://link.springer.com/article/10.1007/s00040-018-0675-y
       | 
       | [2] https://en.wikipedia.org/wiki/Formica_archboldi
        
       | fiftyacorn wrote:
       | Like predator
        
       | agumonkey wrote:
       | crazy level of symbolicness ..
        
       | sonicggg wrote:
       | You could easily make a movie out of this.
        
       | dudul wrote:
       | Who doesn't?
        
         | 082349872349872 wrote:
         | Freeze heads, don't shrink them.
        
       | [deleted]
        
       | lifeisstillgood wrote:
       | "What is best in life?"
       | 
       | "To squish your enemies, see them driven before you, and hear the
       | lamentations of their queen"
        
         | Yetanfou wrote:
         | "What is the best in life?"
         | 
         | "Hot water, good dentishtry and shoft lavatory paper".
        
           | eternalban wrote:
           | That is the stereotypical voice of the opium addict in some
           | locales/cultures. Is it universal?
        
             | Yetanfou wrote:
             | Could be, but in this case it is because Cohen the
             | Barbarian [1] lacks dentures.
             | 
             | [1] https://wiki.lspace.org/mediawiki/Cohen_the_Barbarian
        
         | 082349872349872 wrote:
         | https://history.stackexchange.com/questions/23975/what-was-t...
        
           | lifeisstillgood wrote:
           | I was not going for anything as high brow as Gengis, just
           | rewriting Arnie for the Ant generation :-)
        
         | secondcoming wrote:
         | "lamentations of the women"
        
       | hsnewman wrote:
       | There is so much science doesn't know, labeling it as decorating
       | their homes is far fetched. There are 1000's of other reasons
       | they could be doing this behavior that isn't anthropomorphism.
        
         | dang wrote:
         | Now that you mention it, you're right: the title is
         | anthropomorphizing in a baity way. That means it should be
         | changed (from https://news.ycombinator.com/newsguidelines.html:
         | "*Please use the original title, unless it is misleading or
         | linkbait").
         | 
         | I've changed it to use what appears to be representative
         | language from the article body. If anyone can suggest a better
         | title (i.e. more accurate and neutral, preferably using
         | representative language from the article), we can change it
         | again.
        
         | max_ wrote:
         | Reminds of the "epistemological" reasons Nassim Taleb hates
         | history
        
         | masterphilo wrote:
         | One possible explanation mentioned in the article is that
         | "they're using the dead bodies of their prey to mask themselves
         | in the scent of their local prey species". Seems a lot more
         | likely than a tactic to strike fear into the hearts of their
         | enemies...
        
           | chrisco255 wrote:
           | It seems reasonable on the surface, but how long can these
           | decaying heads maintain their scent? Unless they're
           | constantly refreshing them with new ones, the scent would
           | fade very quickly.
        
       | mlang23 wrote:
       | Well, the universe is unfair and doesnt give a damn about the
       | concept of humanity. It feels like we are systematically
       | forgetting about this fact. Dont get me wrong, I am happy that
       | humans have amanged to establish at least a few rules of conduct
       | which make it relatively nice to be amongst humans in certain
       | countries. However, as said, we seem to forget that this is not
       | the norm in the universe.
        
         | secondcoming wrote:
         | Indeed, none of us matters at all really.
        
       | freedomben wrote:
       | This kind of reminds me of a favorite sub-reddit: r/natureismetal
       | 
       | Be prepared to lose 15 minutes of time to the reddit scroll
       | vortex though :-D
        
       | bryanrasmussen wrote:
       | So have many human societies through the ages, the scythians were
       | the first that came to mind.
        
         | waynecochran wrote:
         | Assyrians liked to pile heads ... very effective
         | psychologically                   I felled 3,000 of their
         | fighting men with the sword. I carried off prisoners,
         | possessions, oxen, [and] cattle from them. I burnt many
         | captives from them. I captured many troops alive: from some I
         | cut off their arms [and] hands; from others I cut off their
         | noses, ears, [and] extremities. I gouged out the eyes of many
         | troops. I made one pile of the living (and) one of heads. I
         | hung their heads on trees around the city, I burnt their
         | adolescent boys [and] girls. I razed, destroyed, burnt, [and]
         | consumed the city.
         | 
         | -- Ashurnasirpal II
        
           | hindsightbias wrote:
           | Upon the capture of Jerusalem in the first crusade, they did
           | not discriminate between Muslim and Jew:
           | 
           | "But now that our men had possession of the walls and towers,
           | wonderful sights were to be seen. Some of our men (and this
           | was more merciful) cut off the heads of their enemies; others
           | shot them with arrows, so that they fell from the towers;
           | others tortured them longer by casting them into the flames.
           | Piles of heads, hands, and feet were to be seen in the
           | streets of the city. It was necessary to pick one's way over
           | the bodies of men and horses. But these were small matters
           | compared to what happened at the Temple of Solomon, a place
           | where religious services are ordinarily chanted. What
           | happened there? If I tell the truth, it will exceed your
           | powers of belief. So let it suffice to say this much, at
           | least, that in the Temple and porch of Solomon, men rode in
           | blood up to their knees and bridle reins."
        
           | 082349872349872 wrote:
           | An (apocryphal!) recent Linear-A decrypt says: "Optimists
           | learn egyptian. Pessimists learn assyrian. Realists learn
           | horsemanship."
        
         | bryanrasmussen wrote:
         | now that the title has been changed from being about Ants
         | decorating their nests with the heads of their enemies the
         | above doesn't make much sense, and the edit window has changed.
         | 
         | At any rate I don't think human societies go after enemies
         | bigger than themselves, that is a thing for individual humans
         | to do.
        
       | christiansakai wrote:
       | Brutal
        
       | tomcam wrote:
       | So do I
        
       | LargoLasskhyfv wrote:
       | Humans did too: https://en.wikipedia.org/wiki/Shrunken_head
        
       | ulises314 wrote:
       | Hey! just like my ancestors!
        
       | totaldude87 wrote:
       | archived link - for those who can't see the page -
       | https://archive.is/N5drE
        
       | sushshshsh wrote:
       | To me, it is very saddening (but still it is reality) that
       | organisms have been forced to evolve with a "kill or be killed"
       | biological wiring.
       | 
       | You'll see that on certain Galapagos islands, where no natural
       | predators exist for the iguana, the iguana is completely docile
       | to all other organisms around it. What's even cooler is that the
       | iguana also only eats seaweed and algae, which means it does not
       | need to kill other animals to survive. It has developed
       | evolutionary adaptations to subsist on this diet as well, such as
       | nasal glands that remove excess harmful salt from their bodies.
       | 
       | I am a firm believer that all of the war and crime you see in the
       | world is driven by some biological wiring that most of us
       | continental organism possess, from ants to humans.
       | 
       | If we had all evolved to be more like iguanas, I wonder if
       | society would have made more (or less!) technological and
       | societal progress, given that a lot of technological advancements
       | come from the demands of war--
       | 
       | but war is not a necessary condition for technological
       | advancement now is it?
       | 
       | Long live the Galapagos iguana!
        
         | jostmey wrote:
         | Maybe if we had evolved to be more like iguanas we wouldn't
         | even have society at all. We would just sit on rocks, seeking
         | to stay warm, never striving for more
        
           | curation wrote:
           | Since Global West "more" has delivered destruction of the
           | biosphere, I'll also long for contemplative humanity not
           | colonial.
        
             | sushshshsh wrote:
             | I think I also prefer the docile society of technological
             | backwardness, sitting on rocks in the warm equatorial sun
             | and eating algae, none the wiser to the possibilities
             | sitting around me involving smelting and electricity :)
             | 
             | But the comment above us is probably right, it would seem
             | that the iguanas have been "doing nothing" for tens of
             | thousands, if not hundreds of thousands or millions of
             | years. Meanwhile humans have "accomplished a lot" in the
             | past 10,000 years lets say, at the expense of many many
             | many other things.
        
             | cal5k wrote:
             | Ah yes, the idea of the noble savage.
             | 
             | Back when Zimbabwe was still Rhodesia, in addition to
             | fighting the Mugabe-lead rebels the Rhodesian military had
             | to routinely step in to stop rival tribes from slaughtering
             | each other. The default state of humanity is tribal
             | warfare, not some beautiful Eden-esque utopia.
             | "Colonialism" wasn't the cause, this is just humanity.
             | 
             | I don't know why people are so keen to deny this. Nature is
             | brutal and yet still beautiful, and I don't see why
             | humanity should consider itself to be special in that
             | regard.
        
               | Turing_Machine wrote:
               | Note that pretty much all of the North American megafauna
               | were wiped out within a few thousand years of the arrival
               | of the proto-Native Americans.
               | 
               | The only exceptions were species that were total badasses
               | (bears, pumas), extremely prolific (deer), or a
               | combination of badass and prolific (wolves, bison).
               | 
               | Also note that the pre-Contact Aztecs weren't exactly
               | nice people. I believe it was Neal Stephenson who
               | observed that one measure of how much the Aztecs sucked
               | was that when the Spanish Inquisition took over, things
               | actually became more humane.
        
               | sfink wrote:
               | You may be right, but s/prolific/tasty/ mostly works as
               | well.
               | 
               | Species can survive humans if (1) the humans can't wipe
               | them out (badass, prolific) or (2) humans don't want to
               | wipe them out (tasty/useful, invisible, cute).
        
               | vagrantJin wrote:
               | Hahaha. Who stepped in to do what? I don't think you've
               | thought this answer through mate. Anothet time mate.
        
               | WD-42 wrote:
               | Sorry, you can't compare warring factions in an already
               | war torn and exploited country to the normal behavior of
               | humanity.
        
               | Turing_Machine wrote:
               | Can you give us an example of a country that wasn't war
               | torn and exploited at some point in its history?
        
               | TheOtherHobbes wrote:
               | If you go back far enough, you get this:
               | 
               | https://blogs.scientificamerican.com/cross-check/new-
               | study-o...
        
               | gearhart wrote:
               | Talking about the normal behaviour of humanity is like
               | talking about the normal outcome of addition. It depends
               | entirely on the inputs.
        
               | luckylion wrote:
               | Who taught the first human tribe engaging in warfare the
               | idea? Who taught chimps? Who taught all the other species
               | that fight over resources?
        
               | throw51319 wrote:
               | Yup, a huge fallacy used to push an agenda of "how it
               | really was!"
               | 
               | Yes - the world was peaceful until the big bad West came
               | into play. Very bad people!
               | 
               | Lol. The reality is as you lay above. Constantly clashes
               | for resources and land, just as the lives of wild animals
               | are in the present.
               | 
               | Even just watching the birds eating from a limitless
               | supply of seeds this morning, they were fighting and
               | establishing an order.
        
               | danans wrote:
               | > The default state of humanity is tribal warfare, not
               | some beautiful Eden-esque utopia. "Colonialism" wasn't
               | the cause, this is just humanity.
               | 
               | Colonialism isn't the cause, but colonialism, powered by
               | weapons and transportation technology and the concept of
               | manifest destiny, massively increased the scope and scale
               | of human exploitation of other humans.
        
               | secondcoming wrote:
               | This is an animated map of who owned what parts of Europe
               | over the past 1000 years. Do you consider 'colonialism'
               | to be different to any other form of human expansion done
               | since time began?
               | 
               | https://www.youtube.com/watch?v=UY9P0QSxlnI
        
               | [deleted]
        
           | kubanczyk wrote:
           | Iguanas are at the mercy of evolution. We aren't.
           | 
           | Evolution is cruel beyond our comprehension and so it does
           | not have mercy. Today they sit in the sun, their
           | grandchildren can be cannibals eating each other. We have a
           | say, for now.
        
             | Hoasi wrote:
             | > Iguanas are at the mercy of evolution. We aren't.
             | 
             | Given enough time, every species evolves. Now, the twist is
             | that the human species could alter its own.
        
             | hirundo wrote:
             | > Iguanas are at the mercy of evolution. We aren't.
             | 
             | Not being at the mercy of evolution is an illusion caused
             | by being at the mercy of both genetic and memetic
             | evolution. If we do things that are at odds with either our
             | biological and social adaptation, we tend to not replicate
             | as much as otherwise.
             | 
             | For instance we can chose not to eat or have sex, but that
             | just edits our patterns out of the population as it always
             | has. We can change society such that acts that were
             | adaptive are now maladaptive, but that just changes
             | evolutionary pressures rather than eliminating them. Even
             | as we master evolution it still masters us.
             | 
             | It's like the illusion in orbit that you have escaped
             | gravity, but you're just falling continuously.
        
               | kubanczyk wrote:
               | I do care whether I'm subjected to cultural pressures or
               | to genetic pressures and I would rather _not_ muddle my
               | worldview by conflating them to a single category.
               | Calling them collectively  "evolution" is not a subtle
               | mistake to make.
               | 
               | In fact placing together memetics and genetics in a
               | single sentence doesn't even compile for me. It's like
               | stamp-collecting and murder. Yes, my whole point is that
               | we are operating on memetic engine and it works wonders.
               | 
               | I'll point out one thing "that just edits our patterns
               | out of the population as it always has", just like not
               | eating or not having sex: being infected by tuberculosis
               | bacteria. By your reasoning developing a vaccine is just
               | silly. Do we even want to rescue any Chopins or Orwells
               | or Kafkas. Vaccine (which is effectively a meme) "just
               | changes evolutionary pressures rather than eliminating
               | them". If it happens, good, if it doesn't happen, no
               | worries? That's the message?
               | 
               | Iguanas surely don't give a fuck about their Chopins.
        
               | Volundr wrote:
               | > I do care whether I'm subjected to cultural pressures
               | or to genetic pressures and I would rather not muddle my
               | worldview by conflating them to a single category.
               | Calling them collectively "evolution" is not a subtle
               | mistake to make.
               | 
               | But they absolutely are the same category. 100%, and
               | always have been. Just look at how mating preference has
               | affected many species, ex: the peacock. "Cultural"
               | pressure preferred men with a colorful booty, and over
               | time genetics conformed. The same is true if the
               | "culture" prefers people who are soft spoken,
               | adversarial, drawn to the color green, or have a funny
               | left ear. If the culture means that people with a certain
               | trait are more successful and thus more likely to
               | reproduce over a sufficient period of time genetics will
               | trend towards producing more individuals like that.
               | 
               | As for the rest of your comment, I keep reading it over
               | and over and I can't figure out what your getting at.
               | Developing a vaccine means more people in my group are
               | likely to survive to reproduce, thus (given sufficient
               | time) evolution will favor those species that can produce
               | vaccines (or not be vulnerable to the disease in the
               | first place).
        
           | praptak wrote:
           | I don't see how this is bad. If I could rewire my reward
           | center to keep me happy with not striving for more, I'd do
           | that.
        
             | sfink wrote:
             | It's not bad, it's just that if you were able to do this
             | then you would not reproduce and would remove your
             | contribution to the genetics (and to a lesser degree,
             | memetics) of future generations.
        
               | Volundr wrote:
               | That's not true though? Iguana's reproduce just fine.
               | Being content with what one has does not preclude seeking
               | out sex.
        
             | drewbug wrote:
             | Recreational drugs are widely available
        
               | praptak wrote:
               | They do not work that way.
        
               | wasdfff wrote:
               | Buddhism does, however.
        
               | mamon wrote:
               | Buddhism as a religion is basically anti-life. Wanting
               | something, having goals and pursuing them - that's what
               | every living creature does. Except for Buddhist, who
               | often deliberately choose death as their way out of their
               | miserable lives, see
               | https://en.wikipedia.org/wiki/Sokushinbutsu
               | 
               | Or, to put it more bluntly: buddhism is a religion of
               | losers trying to convince themselves that being a loser
               | is OK.
        
               | shard wrote:
               | Depends on the drug, and the interpretation of "not
               | striving for more":
               | https://en.wikipedia.org/wiki/Amotivational_syndrome
        
             | sushshshsh wrote:
             | Totally agree with this. The iguanas have evolved to be
             | able to totally subsist with what is in front of them and
             | not strive for more. Their Maslow checklist is 100%
             | complete :)
        
           | TheOtherHobbes wrote:
           | Maybe on an evolutionary meta-level striving for more is the
           | equivalent of sitting on rocks and trying to stay warm - and
           | we're stuck in this hyperactive local minimum one step from
           | collective suicide because we're not smart enough to work
           | that out.
        
         | bananamerica wrote:
         | Well, good, evil and sad are human concepts that probably do
         | not apply to the mental life of ants. We tend to ascribe deeper
         | meaning to things, even when that is not reasonable.
        
           | sushshshsh wrote:
           | In some sects, I would imagine that sadness is seen as a bug
           | and not a feature-- "why feel bad that you killed something
           | to survive? you should be proud!" is a theme common in our
           | human history.
        
             | bananamerica wrote:
             | I might say: "why are you sad due to nature working as it
             | should?"
        
         | joeberon wrote:
         | Why is it saddening? Only to us as social intelligent animals.
         | Stop projecting your clinging to your continued existence onto
         | nature!
        
           | ganzuul wrote:
           | A billion years of instinct must lead to uncertainty and
           | mixed feelings. We great apes are a strange apparition in the
           | cosmos, capable of glimpsing the absurdity of our own
           | existence.
           | 
           | "What a piece of work is a man! How noble in reason, how
           | infinite in faculty! In form and moving how express and
           | admirable! In action how like an angel, in apprehension how
           | like a god! The beauty of the world. The paragon of animals.
           | And yet, to me, what is this quintessence of dust?"
        
         | 082349872349872 wrote:
         | Domesticated animals are far less aggressive than the wild
         | types.
         | 
         | However, I believe _Homo sapiens_ is already pretty
         | domesticated. (neotenate, potentially herbivorous, able to
         | breed in captivity, pleasant disposition, not prone to panic,
         | willing to live in large hierarchically dominated herds)
        
           | dheera wrote:
           | > Domesticated animals are far less aggressive than the wild
           | types.
           | 
           | Dogs are far, far more aggressive than their wild
           | counterparts. Their wild counterparts, in general, are not
           | territorial against non-canids, and pretty much only attack
           | if they are hungry.
        
             | 082349872349872 wrote:
             | TIL. I guess that's another indication that _Animal Farm_
             | 's animal models were carefully chosen.
        
             | z3t4 wrote:
             | Dogs and cats are basically their wild counterpart bread to
             | not be aggressive/dangerous (to humans).
        
         | agumonkey wrote:
         | It's a very interesting notion to me.. I spend my days thinking
         | about the predatory environment of jobs in our 'modern'
         | culture. I also believe that with a different seed, we could
         | all have evolved job cultures very very much more iguanian.
        
           | sushshshsh wrote:
           | I really like the way you think! The open source movement is
           | really getting closer and closer to this organizational
           | structure.
           | 
           | When you stop thinking about "how do I sell this software to
           | other people so I can buy the things I need", and instead
           | move to a model of everybody building software that can help
           | humans obtain the things they need, I think the world
           | changes.
        
             | agumonkey wrote:
             | I'm torn because I think the sales/survival pressure also
             | avoids slacking off you see.
             | 
             | Open source is not immune to false roads and mud.
        
               | s0l1dsnak3123 wrote:
               | You seem to equate slacking off with failure, when
               | there's plenty of evidence to the contrary:
               | https://blog.trello.com/slacking-off-speed-up-
               | productivity
               | 
               | It's important to separate what we _feel_ is productive
               | work, from what will actually produce the most work on
               | aggregate across society.
               | 
               | I think we can build a world where those who feel they
               | need downward or lateral pressure to get things done can
               | have this, but not at the expense of everyone else.
        
               | agumonkey wrote:
               | Don't worry I have a fairly broad measure of productivism
               | that doesn't take into account transient fluff.
               | 
               | I meant slacking off as endless debates, running in
               | circles and dropping things.
               | 
               | The art is the fine balance between progress and debt.
               | oss doesn't guarantee that.
        
         | grawprog wrote:
         | >What's even cooler is that the iguana also only eats seaweed
         | and algae, which means it does not need to kill other animals
         | to survive.
         | 
         | It still needs to kill other organisms to eat. The only
         | organisms that don't kill something else to gain energy are
         | photosynthesizers and decomposers like fungi that consume dead
         | organic matter.
        
           | Turing_Machine wrote:
           | And, of course, even the decomposers depend on death to
           | survive. Perhaps not directly, but if things stopped dying
           | fungi would be in bad shape.
        
         | kiliantics wrote:
         | > I am a firm believer that all of the war and crime you see in
         | the world is driven by some biological wiring that most of us
         | continental organism possess, from ants to humans.
         | 
         | That is a very fatalist view that denies humans the agency we
         | clearly have. We are obviously capable of devising social norms
         | that go against our "biological wiring", whatever that even is.
         | A simple proof is how varied social norms can be -- with
         | respect to things like marriage/family, work, death, religion,
         | etc. -- across different cultures in space and time.
         | 
         | We have the power, collectively, to end the horrible practices
         | that lead to war, exploitation, imprisonment/torture, climate
         | change, and whatever else. These are not an inevitability. The
         | idea that it is inevitable is more of a self-fulfilling
         | prophecy that allows it to continue without any challenge.
         | 
         | We have shown in many ways that we have risen above the
         | determinism of many biological processes. We should realise
         | that things can be different and change ourselves to be a part
         | of that difference.
        
           | FooBarBizBazz wrote:
           | > change ourselves
           | 
           | "Pray the gay away."
           | 
           | Lobotomies.
        
         | rzwitserloot wrote:
         | Channeling some heinlein here:
         | 
         | If we were all galapagos iguanas, well, then one of us iguanas
         | will find a way to swim or otherwise get to a larger landmass.
         | Or find a way to live in the ocean.
         | 
         | Then, one of us would find a way to breed faster. After all,
         | there is infinite seaweed and algae available to me.
         | 
         | Eventually then, this adapted iguana will be so widespread,
         | even if it remains docile and somehow does not evolve some
         | territorial behaviour for mating purposes (unlikely), that,
         | docile and all, it eats all the seaweed.
         | 
         | Some seaweed will likely mutate into something that is harder
         | to eat for the iguana, or poisons them and iguanas learn not to
         | eat that (why? Well, there are a ton of iguanas - whatever
         | iguana just mutates their genes into recognizing the poisonous
         | one by taste or smell and won't eat it, will survive where the
         | ones without the mutation will start dying off in droves).
         | 
         | And now we have our war back.
         | 
         | It's just between iguanas and the seaweed, which is now in an
         | arms race: The iguanas adapt to deal with the poison, the
         | seaweed adapts to come up with new poisons or otherwise make
         | themselves harder to eat. The rules have changed: There are so
         | many iguanas, that if you are easy to eat by an iguana, you, as
         | a seaweed, are just not going to survive, because there are so
         | many.
         | 
         | Or, if the seaweed does not manage to be an equal aggressor in
         | this fight, then something else happens: First massive, MASSIVE
         | die-outs of iguanas due to starvation, and then eventually,
         | aggressive behaviour between iguanas: If I manage to find a
         | stretch of beach with a bunch of seaweed, and I just had some
         | kids? Well, I can just stay docile. Or, I adapt to be
         | aggressive, I chase off other (docile) iguanas hungry and on
         | the lookout for seaweed, and thus ensure that my children
         | survive whilst theirs die of starvation.
         | 
         | War is inevitable, unless the system grows into 'acceptance', a
         | self-balanced status quo where opportunities to expand exist
         | but for whatever reason a part of the ecosystem just decides
         | not to do this. For example, what if the iguana's somehow have
         | a break built in and do not adapt. It's that or find a lifeform
         | that requires literally zero resources.
         | 
         | The problem is, given that this is an utopic view where life is
         | great and nothing needs to change and there are no external
         | pressures to adapt, why would you invent anything? Until some
         | external force shows up and changes things, life will continue
         | stable forever, with iguanas doing iguana things and seaweed
         | doing seaweed things.
         | 
         | Heinlein's principle is that this can only hold if you are
         | literally the only life in the entire universe (or all life is
         | like this), because if not, one day one of the ecosystems that
         | decided to 'war' and grow will obliterate you. They don't play
         | by the same rules.
        
           | sushshshsh wrote:
           | I'm going to leave aside your points about seaweed evolution
           | and iguana evolution because they are definitely correct and
           | would lead to the collapse of the system I described.
           | Externalities are a real beast!
           | 
           | Hehe, well, if humans were able to survive off of sunlight
           | alone, then the only reason to kill something would be "for
           | fun", or in other words, the result of what we would call a
           | mental illness.
           | 
           | I wonder if there has ever been an Galapagos iguana vs
           | Galapagos iguana murder. I don't even think they possess the
           | physical capability to murder each other, like, their mouths
           | and hands don't generate enough energy to pierce skin or
           | constrict blood flow or deliver blunt force trauma.
           | 
           | If iguanas were able to survive on sunlight alone, eventually
           | they would hit carrying capacity of the place in which they
           | live.
        
         | delibes wrote:
         | Huh? I seem to recall watching the series "Planet Earth 2" and
         | there was some tense scenes with iguanas and snakes:
         | 
         | https://www.vulture.com/2017/02/planet-earth-ii-iguana-snake...
         | 
         | Looks like they have a predator to me.
         | 
         | You might have a point about war and in general consumption
         | being a 'wired-in' behaviour. Then again assuming we have
         | something like intelligence and free will, we should be able to
         | choose to override some primitive behaviour.
        
         | optimiz3 wrote:
         | Society's fundamental value is channeling the unpleasant
         | aspects of our nature to create a net benefit for all. It is
         | folly to fight the natural drive to compete. Instead focus on
         | systems that channel that drive into innovation and production.
         | There will always be haves and have-nots as long as there is
         | evolutionary selection.
         | 
         | My favorite metaphor is to think of humanity as gasoline. Left
         | alone it explodes, but put in an engine it does useful work.
         | Society and its laws are the engine that channels destructive
         | force into useful output.
        
         | timmytokyo wrote:
         | Nature, red in tooth and claw.
        
         | V-2 wrote:
         | Long live indeed, since iguanas are considered vulnerable to
         | extinction. In fact, they already went extinct once on Santiago
         | Island (one of the largest of the Galapagos) - they've been
         | reintroduced by humans as part of a restoration program. This
         | shows limitations of their strategy.
        
         | looping__lui wrote:
         | Or another outcome could have been: all the seaweed and plants
         | get eaten up, don't regrow in time and we would have just
         | vanished. Not sure how the seaweed would have felt about that
         | either.
         | 
         | Some organism would have realized that hunting down other stuff
         | is easier and more nutritious than chewing on seaweed.
        
         | DenisM wrote:
         | Adversity is the mother of progress. You can see it everywhere
         | - biological evolution, societal evolution, technology,
         | economics.
         | 
         | Perhaps a more merciful way to lose would be helpful.
        
         | JoeAltmaier wrote:
         | Not following. Iguanas _did evolve_. We also evolved. Those
         | that evolved to be  'more like iguanas' actually happened - we
         | call them 'iguanas' and they are lizards. Not doing too well.
         | 
         | The fact is a certain brainy old-world ape has taken over the
         | biosphere. Because evolution gave them the biological tools to
         | do so. That's what evolution does.
         | 
         | We'd have to propose something different from evolution, to get
         | a different result.
        
         | solidsnack9000 wrote:
         | Some of the best features of people are the result of
         | competitive evolution -- it's not just our worst features that
         | come from the struggle for survival.
         | 
         | The iguana's war on algae is definitely hell for the algae. Is
         | not killing other animals such a great distinction, in the
         | grand scheme of things?
         | 
         | If all the animals were vegetarian and weren't getting preyed
         | on, most of them would die of starvation. (Most birds, rabbits,
         | &c die early -- it's not like people where surviving to
         | adulthood is the norm.) The animals that killed the other
         | animals to have more vegetables to eat would have more
         | offspring and be more likely to survive. Killing others not to
         | eat them but to eat their stuff -- that's war.
         | 
         | The iguana situation is one where there's just not much
         | evolutionary pressure. It doesn't generalize.
        
           | lisper wrote:
           | Algae doesn't have a brain, or even a nervous system, so
           | eating algae instead of other animals really is a net win on
           | the kumbaya scale.
        
             | tommica wrote:
             | But if everyone eats algae, then there is no algae left!
        
               | lisper wrote:
               | And yet somehow there is still enough algae in the
               | Galapagos for the iguanas to survive. Gee, I wonder how
               | that could be possible.
        
               | Volundr wrote:
               | That's only true if algae is incapable of reproducing as
               | fast as it's consumed. In my experience running an
               | aquaponics system this isn't a concern.
        
         | DamnYuppie wrote:
         | Almost all organisms evolved to kill or be killed.
         | 
         | The entire universe is chaos and continual destruction and
         | creation.
         | 
         | By ignoring the innate human nature to struggle and fight you
         | are not removing it or making it go away. You are merely making
         | it more likely that your society will inevitably fall to
         | another that is more aggressive, assertive, or war like. In all
         | of history decedent societies continually fall to more barbaric
         | and less advanced societies.
        
           | jdc wrote:
           | https://en.wikipedia.org/wiki/Is%E2%80%93ought_problem
        
           | Veluga wrote:
           | I don't think you got OP's point at all.
        
         | katzgrau wrote:
         | I think it's somewhat inevitable that in times of scarcity, the
         | most aggressive (either psychologically or physically) members
         | of a species are going wind up surviving and passing on the
         | traits that helped them survive, for good or worse.
         | 
         | Were living with the reality of that, as much as I'd also like
         | it to not be the case.
        
         | thisisauserid wrote:
         | Your ability to feel sadness evolved from the thing you are sad
         | about.
        
         | plasticchris wrote:
         | Racer snakes eat baby iguanas. Galapagos hawks eat full grown
         | adults.
        
         | disown wrote:
         | > the iguana is completely docile to all other organisms around
         | it. What's even cooler is that the iguana also only eats
         | seaweed and algae
         | 
         | Seaweed and algae are organisms as well. Plants don't want to
         | be killed and eaten no more than animals do. I think
         | Attenborough or BBC's documentary on plants showed the lengths
         | plants go through to avoid being eaten and communicating danger
         | to other plants.
         | 
         | > I am a firm believer that all of the war and crime you see in
         | the world is driven by some biological wiring that most of us
         | continental organism possess, from ants to humans.
         | 
         | It's not just continental, it happens in the oceans as well.
         | It's not just animals, microbes/bacteria/etc also kill and eat.
         | It's even happening all over your body right now. It's been
         | happening millions of years before the dinosaurs.
         | 
         | > If we had all evolved to be more like iguanas, I wonder if
         | society would have made more (or less!) technological and
         | societal progress, given that a lot of technological
         | advancements come from the demands of war--
         | 
         | Probably less. The only reason galapagos iguanas exist is
         | because they are isolated from competition and are adapted to a
         | specific environment. Humans are more general while the
         | galapagos iguana is specialized. It's like the difference
         | between a computer and a calculator.
        
       | Adferdfqwer wrote:
       | Jssusu
        
       | Adferdfqwer wrote:
       | Jajs
        
       | dontcarethrow2 wrote:
       | Ooh but we always war in nature, we can never change. Greed?
       | thats just nature, f the weaklings who cant protect themselves.
       | Whos fault is it they can protect themselves? /s
       | 
       | It sounds like we pick whatever is most convenient for us of the
       | day. Everything disguised in 'its just nature'. We made change
       | and we have left nature behind, we can continue in changing our
       | uglier parts, but it sure as shit isn't convenient when most of
       | our congress needs to be tried for war crimes, held responsible.
       | That is too inconvenient, so let's all marvel at this study that
       | says War War War!
        
       | jungletime wrote:
       | Reminds me of "Heart of Darkness". Marlow, an 1800s explorer,
       | goes up the Congo, and at some point is corrupted by evil and
       | loses his mind in the jungle. Becomes a demigod figure, served
       | and worshiped by the local natives. He decorates his fence posts,
       | with skulls, facing his hut. Usually they face out, to keep the
       | evil out. But not with Marlow.
        
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