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Blending Mice and Men

An anonymous reader sends in this piece about chimeras - not the ones with a THAC0 of 11, but a more general term meaning any multi-creature hybrid. A comprehensive look at the moral and scientific issues surrounding this area of biotech.

25 of 387 comments (clear)

  1. THAC0? by civman2 · · Score: 3, Informative

    THAC0 was the one where the lower your score was the better is. Counter-intuitive? Armor Class forever! Long live d20!

    1. Re:THAC0? by Romothecus · · Score: 5, Informative

      Actually, your post is only half correct. THAC0 is analagous to what is now called attack bonus; THAC0 stood for "To Hit Armor Class 0." Armor Class was still armor class, however, a lower armor class was better and 0 was considered the best non-magical AC (a human wearing full plate had a AC of 0, as I recall.)

  2. Non-layable by Tablizer · · Score: 3, Funny

    The worse cruelty is that no female, mice nor women, would sleep with such a person/thing.

    Well, I take that back. If their freekitude makes them rich, then the babes will probably come.

  3. They've been around for a while... by ssand · · Score: 5, Interesting

    The latest Chimera's discovered can be found here on worth 1000. Behold what science can do now!

  4. "Blending Mice and Men" by physicsphairy · · Score: 4, Funny

    Funny, that's exactly what I wanted to do to that book when I had to read it for English class.

  5. This is how society blends mince and men... by ReeprFlame · · Score: 5, Funny

    The only way I see blending of mice and men is when our hands are merged with our mice when gaming 24/7 on the hot new RPGs!

  6. it's a new age by Camel+Pilot · · Score: 4, Interesting

    The implications of a "humanzee" is enough to keep philosophers and religious thinkers busy for quite a while.

    Does a humanzee really have a soul? Should they be granted "human rights"? Can we use them to test drugs or clean out clogged sewer lines? Really quite interesting.

    Just another humbling experience for those who think humans are something special apart from the rest of creation.

    1. Re:it's a new age by ParadoxicalPostulate · · Score: 4, Funny

      "Does a humanzee really have a soul? Should they be granted "human rights"?"
      More importantly, can they run Linux?

    2. Re:it's a new age by tasidar · · Score: 4, Insightful
      The implications of a "humanzee" is enough to keep philosophers and religious thinkers busy for quite a while. Does a humanzee really have a soul? Should they be granted "human rights"? Can we use them to test drugs or clean out clogged sewer lines? Really quite interesting. Just another humbling experience for those who think humans are something special apart from the rest of creation.

      More likely we'll just revert to the definition of humanity that our ancestors used...
      The fact that humanity must be earned (ie, creatures that look human may not necessarily be human)

      Hopefully, we'll used enlightened definition of humanity, but the more likely possibility is that we will create slaves.

    3. Re:it's a new age by Planesdragon · · Score: 5, Interesting

      Hopefully, atleast this will make people realize that animals should be given much the same right as humans

      "An animal may have rights when it asks for them."

      This may be a parahrased quote from a Supreme Court judge. If not, it's one that I'll wager they would agree with.

      When your ape signs "please let me vote for president, I care about ecological progress" as interepted by someone without bias, and it can then sign "yes, I swear and understand" in court, it'll be able to win rights in a rather simple court.

      But they can't. And so they don't have equal rights to humans.

      OTOH, it's entirely civilized to kill humans. It's all about WHEN and WHY that defines civlization, not the actual killing or lack thereof.

    4. Re:it's a new age by tasidar · · Score: 3, Insightful
      I'm a "religious thinker" and this didn't take long. The definition of human in Jewish law is the ability to speak. (In fact that's the name of the human soul: the "speaker".)

      Can't dolphins speak? Based on your definition, if you correct their physical limitations, they should be able to learn a human tongue.
      Of course their language model is different than ours.

    5. Re:it's a new age by Camel+Pilot · · Score: 4, Insightful

      Speaking is just a mechanisim to communicate. It just so happens that we "evolved" a way of communicating by modulating and receiving gas pressure waves. What's so special about that.

      Whales and dolphins do the same except they use the ocean instead of the atmosphere as a transport media.

      In the field I have seen coyotes communication via vocalizations - does that give them soul status?

    6. Re:it's a new age by RsG · · Score: 4, Informative

      No offence, but that's simply nonsense. "Speach", as you define it, requires a human vocal arraignment. This means we need a dedicated section of the brain, highly specialized vocal chords, and a trachea/esophagus system that allows us to use it for speach. None of these features are in any way related to intelligence. We could engineer a creature or artificial intelligence that possessed greater cognitive capabilities than a typical human, yet lacked the ability to speak. How would you deal with a chimp granted supernormal intelligence by splicing it's brain tissue with the genetic material required for a human neocortex? It can't speak (chimps can learn sign language btw, but cannot physically speak), but it's mute becasue it lacks sophisticated vocal chords or a speach center. Conversely, programmers have written programs capable of simulating complex conversations with users, which, according to your narrow definition of personhood, should qualify as people provided they are equipped with audio.

      Personhood presently is defined as humanity. If we find or create intelligence that is not human, then we will need a new definition. I would much rather that criteria be based on something substantial, like complex independant reasoning, rather than something as specific and unrelated as speach. Yet that won't happen for some time, since we do not yet have an example of such intelligence, and when we get there, doubtlessly people will cling to the old human definition, and resist change on the basis of emotion or religion.

      As a side note, primates and cetacians (dolphins etc) have been shown to have language. In fact, there is a considerable body of evidence supporting the conclusion that dolphins "speak', using their sonar system. Chimps, as I've already mentioned, have shown that they can learn and intelligently use sign language. Defining speech as language, and using your definition of personhood, whould higher mammals such as these qualify? They can speak in a way, and they have demonstrable intellect. If we set a threshold for personhood based on speach, dolphins would qualify, at least. If we used a definiton based on human level intelligence, they would not (but neither would fetuses or the severly mentally disabled, which opens up a major political can of worms, not to mention an ethical debate of huge proportions). There is a valid ethical question here, and genetic engineering is only going to complicate it further. To quote someone whose name I've forgotton "For every complex question there is an answer that is simple, elegant and wrong."

      --
      Erotic is when you use a feather. Exotic is when you use the whole chicken.
    7. Re:it's a new age by snake_dad · · Score: 3, Insightful

      Give a million of them a keyboard and they can write Linux. Eventually.

      --
      karma capped .sig seeking available Slashdot poster for long-term relationship.
  7. See what's gonna happen... by cy_a253 · · Score: 5, Funny
    Now Weissman says he is thinking about making chimeric mice whose brains are 100 percent human.

    Wow. A super intelligent mouse. Aren't they afraid that mouse will then get a slow-witted sidekick and try to take over the world?

  8. Chimera? by Infinityis · · Score: 3, Funny

    First things first, they need more descriptive names. What's that mouse-like thing in the corner? A chimera. What's that pig in the pen? A chimera. And the sheep?

    Pretty soon some arcane naming convention will evolve, and a college-level genetic engineering will be much like organic chemistry with its names oxy-lacto-3-alpha-nano-5-methane.

  9. Culture by Raindance · · Score: 4, Interesting

    In my opinion the "we should not do this" argument splits into three branches: it's dehumanizing for humans, we're opening pandora's box, and it's bad for the chimeras.

    I'll leave the first and second branch alone and focus on the third. These sorts of experiments probably put the chimeras through a great deal of hardship: we're creating organic systems which are not found in nature, and very probably have deep physiological problems.

    My grandparents' ranch bought a critter that was 3/8 buffalo, 1/8 cow, and 1/2 yak. It was a very messed up animal and walked around in a constant state of confusion- I would guess due to conflicting instincts and brain chemistry.

    I can only imagine what a mouse with human brain cells (mentioned in the article) would feel like- it'd almost certainly feel unwell, to say the least. Worse yet, how a non-human critter with human brain cells exposed to culture would feel like (and thus being smart enough to 1. know how messed up he is and 2. feel more dimensions of pain).

    We may be creating hell on earth for some of these critters. That's not very cool.

    RD

  10. Re:For every freak.. by metlin · · Score: 3, Funny


    Yup, especially considering how famous the Triple Breasted Whore of Eroticon Six was ;-)

  11. Buffalo Wings... by ParadoxicalPostulate · · Score: 5, Funny

    Maybe now they can actually serve real buffalo wings at Pizza Hut.

  12. Genetic Mosaics by MillionthMonkey · · Score: 3, Interesting

    This already happens, in a form of twin birth where a pair of fraternal twins fuse into a single embryo. This can result in an "embedded twin", where one twin is partially absorbed into the body of the other. You get individuals with second faces on their shoulders, etc. But there is the happier case where the twins get mixed up at a very early stage in blastular development and develop normally from then on. This produces a chimeral individual whose cells are of two different genotypes.

    This is extremely rare; a case was discovered in 2002 when a woman needed a kidney transplant. Tissue typing revealed her to be a tetragametic individual, having developed from four gametes instead of two. Half her cells were genotypically different from the other half. During development, this woman and her twin fused into one embryo, and appeared to the world after birth to be one person. There are probably more people like this out there. I seem to remember a story where another woman surprisingly failed a maternity test for her own son, and was found to be chimeral.

    See here (or its Google cache to avoid slashdotting) for details.

  13. Re:I for one... by commodoresloat · · Score: 4, Funny

    Well, it does beat the crap out of the mouse-brained human overlords we seem to have now!!

  14. I could've used a Chimera earlier tonight by corbettw · · Score: 3, Funny

    Luckily, I took "Light Infantry" as one of my Regimental Doctrines, and the scenario called for Infiltrators. So I managed to setup about 150 guardsman after the Ork player had deployed his entire army. But still, having a Chimera or two as mobile weapons platforms would've come in handy. Multi-lasers seem tailor made for killing Orcs (wounds on a two, with no save). Though things would've gone a lot better if the damn Stormtroopers had ever deployed their grav-chutes and hit the table. That looted Basilisk was just asking for melta-love.

    Oh, you meant something else. Nevermind.

    --
    God invented whiskey so the Irish would not rule the world.
  15. They've been around 3 billion years or so by jd · · Score: 5, Interesting
    As soon as you get multicellular life - even just two cells - you have the possibility of chimeras. It's actually more than possible, it's a very high probability.


    Ok, maybe they're not chimeras in the sense of two radically different lifeforms, but the article considered a mother carrying DNA in their blood from their child as being close enough, so I think it's OK to consider any lifeform in which there are two or more non-identical DNA sequences present.


    DNA is horribly unstable stuff. That's why mutations occur. It's also why certain cancers occur. All it takes is for a cell's DNA to be altered. A bad copy, a reaction with a free radical, whatever. What you get is a cell with different DNA than other cells.


    99% of the time, that's not a problem. The cell destroys itself or gets destroyed by the body's defenses. No big deal. Some of the remaining time, the cell goes cancerous. Either the cancer or the organism is destroyed.


    Most of the remaining incidents would likely be chimeras of a kind, especially if the organism is still developing. There's absolutely nothing to stop a cell mutating subtly and then copying that mutation into every copy of that cell ever made. If it's a useful mutation (it can survive and it confers an advantage) AND it occurs early enough in life that descendents acquire that mutation, we call it evolution. But I can think of absolutely no reason why a useful mutation cannot occur at any time in an organism's lifetime. It's just going to be rather more regional and it probably wouldn't be conferred to descendents.


    Although much less likely than a single cell mutating, I can see absolutely no reason why it would be impossible for multiple cells to mutate in a way that would (a) individually function and (b) function together as a single organism.


    Exposed to an environment that is sufficiently hostile to DNA, there is a non-zero probability of just about any imaginable set of mutations occuring. This creates an interesting philosophical problem. There's a lot of debate as to when human life begins. But by the arguments given above, there is a non-zero probability that any life could be human, and a (much higher) probability that any human is not entirely human.


    If cells can mutate, blend, fuse, do whatever cells like doing on weekends, etc, then is it meaningful to consider how human a chimera is? We must all be chimeras. It's just a matter of degree.


    "Human" cannot, then, be the state of an organism, because no organism is guaranteed a uniform state, unless it's unicellular. At best, it can only be a composite of states. However, that might not be good enough, either. Let's take the most extreme example possible - some idiot decides to blend humans and chimpanzees - not through breeding, but through genetic and chimeric techniques.


    Now what happens? The cells will very likely fuse extremely well, being far more similar in nature than the pig/human example in the article. Let's say that the result is a "perfect" 50/50 mix. Are they human or not? Would it be possible to tell, without careful DNA analysis?


    Ok, now let's say that the ratio is 90% human and that it turns out most people accept the person is human. Fine. Let's also say that, as a result of normal cell mutations (as outlined above) and/or cell replacement the ratio falls over the lifetime to below 50% human. Are they still a person?


    Or take the reverse scenario. They start off 90% chimp, and (through cell mutations/replacement) become over 50% human. In other words, can you "become" human after you're born?


    It seems to me that the entire problem is very complex and that existing definitions of what an organism is simply aren't good enough to classify organisms that are non-trivially chimeric.

    --
    It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    1. Re:They've been around 3 billion years or so by shawb · · Score: 5, Informative

      And then there's the whole issue of mitochondria/chlorplasts. Those were originally single celled organisms that got absorbed by another single cell organism, but then reproduced rather than being consumed.

      The resulting Chimera passes down both the "host" organism plus the mitochondria/chloroplasts with their own unique DNA from the cell proper.

      End result: Now these two once foreign cells are essentially the powerhouse of modern life. Chloroplasts are where plants actually convert light energy into chemical energy (stored as sugar) and mitochondria are where plants and animals (and most other assorted organisms as well) then convert sugars into readilly available energy, ATP (Adenosine TriPhosphate.)

      --
      I'll never make that mistake again, reading the experts' opinions. - Feynman
  16. Re:What's special about human communication by Oligonicella · · Score: 3, Interesting

    And the bullshit starts.

    No, dogs do not know how to communicate to other dogs at birth, and no, humans are not vocally clean at birth. You simply do not know what you're talking about.

    Yes indeed, humans have a communication instinct. Humans raised with only their siblings develop their own language.

    Animals do indeed reason. "Convince". Very subjective word there. Reason is seldom built upon right vs wrong, which are abstractions open to individual interpretation anyway. Humans base their reasoning on hunger, play, rest, sex, etc.