[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. ___________________________________________________________________ (page generated 2020-10-04 23:00 UTC)