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Thread: Gigantism

  1. #1 Gigantism 
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    What are the general causes of gigantism in species? Is it genetic?Can gigantism exist in Mammals and marine life like Cephalopods?


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    Forum Professor Zwolver's Avatar
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    Giganticism is caused by a high oxygen ratio and a mainly slow species. Mammals have giganticism, but this isn't 10 times bigger then normal, it's simply over 2 meters (in humans).

    Oxygen, food and gravity is the main limitation to size in animals.


    Growing up, i marveled at star-trek's science, and ignored the perfect society. Now, i try to ignore their science, and marvel at the society.

    Imagine, being able to create matter out of thin air, and not coming up with using drones for boarding hostile ships. Or using drones to defend your own ship. Heck, using drones to block energy attacks, counterattack or for surveillance. Unless, of course, they are nano-machines in your blood, which is a billion times more complex..
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  4. #3  
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    It is usually genetic, yes. Occurs when a child's body produces too much growth hormone. Of course, this could be artificially induced as well, which has caused some concern about feeding children foods that may contain growth hormone (e.g. milk from cows that were fed recombinant bovine growth hormone).
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    Life-Size Nanoputian Flick Montana's Avatar
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    Are we talking about growth abnormalities like acromegaly or are we talking about certain species becoming giants through evolution like Megatherium?
    "Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us." -Calvin
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    Quote Originally Posted by Flick Montana View Post
    Are we talking about growth abnormalities like acromegaly or are we talking about certain species becoming giants through evolution like Megatherium?
    Certain species becoming giants through evolution.
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  7. #6  
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    this isn't giganticism, it is simply a big species. Haha..
    Growing up, i marveled at star-trek's science, and ignored the perfect society. Now, i try to ignore their science, and marvel at the society.

    Imagine, being able to create matter out of thin air, and not coming up with using drones for boarding hostile ships. Or using drones to defend your own ship. Heck, using drones to block energy attacks, counterattack or for surveillance. Unless, of course, they are nano-machines in your blood, which is a billion times more complex..
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  8. #7  
    Life-Size Nanoputian Flick Montana's Avatar
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    Quote Originally Posted by Sci-fi guy View Post
    Quote Originally Posted by Flick Montana View Post
    Are we talking about growth abnormalities like acromegaly or are we talking about certain species becoming giants through evolution like Megatherium?
    Certain species becoming giants through evolution.
    In that case, you can definitely see that animals evolve to gigantic proportions all over the world. The largest creatures to ever exist are currently on our planet; blue whales. Even the largest of the dinosaurs was only half the size of a blue whale.

    We've also seen giant octopi (sorry, octopusses sounds silly) found by fisherman and the like.

    I don't think there is anything limiting which species can evolve to giant proportions outside of biological limits (single-celled bacteria cannot grow to the size of a car) and evolutionary limits where size does not equate to survivability in a proportional way.
    "Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us." -Calvin
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  9. #8  
    Forum Professor Zwolver's Avatar
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    single-celled bacteria cannot grow to the size of a car
    You still sure a bacterium could never get this big? This is 12 mm big.



    Then look at this,



    The white spot is the largest bacteria in the world, currently. 0,5mm diameter.

    I think cars can get smaller, and i think bacteria can get bigger... So i disagree
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    Growing up, i marveled at star-trek's science, and ignored the perfect society. Now, i try to ignore their science, and marvel at the society.

    Imagine, being able to create matter out of thin air, and not coming up with using drones for boarding hostile ships. Or using drones to defend your own ship. Heck, using drones to block energy attacks, counterattack or for surveillance. Unless, of course, they are nano-machines in your blood, which is a billion times more complex..
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  10. #9  
    Life-Size Nanoputian Flick Montana's Avatar
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    Okay, you got me. See, this is why constants > variables.
    "Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us." -Calvin
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  11. #10  
    Brassica oleracea Strange's Avatar
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    The single-celled algae Valonia ventricosa can grow up to 4cm: Valonia ventricosa - Wikipedia, the free encyclopedia.

    Xenophyophores can grow up to 20cm: Xenophyophore - Wikipedia, the free encyclopedia

    Caulerpa can be several meters in length: Caulerpa - Wikipedia, the free encyclopedia
    Without wishing to overstate my case, everything in the observable universe definitely has its origins in Northamptonshire -- Alan Moore
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  12. #11  
    Life-Size Nanoputian Flick Montana's Avatar
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    Fortunately, I limited my statement to prokaryotes.
    "Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us." -Calvin
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  13. #12  
    Brassica oleracea Strange's Avatar
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    Hey, has anyone seen the goalposts? I'm sure they used to be round here somewhere ...
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    Without wishing to overstate my case, everything in the observable universe definitely has its origins in Northamptonshire -- Alan Moore
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  14. #13  
    Forum Professor Zwolver's Avatar
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    What do you mean by goalposts? Something about giganticism?
    Growing up, i marveled at star-trek's science, and ignored the perfect society. Now, i try to ignore their science, and marvel at the society.

    Imagine, being able to create matter out of thin air, and not coming up with using drones for boarding hostile ships. Or using drones to defend your own ship. Heck, using drones to block energy attacks, counterattack or for surveillance. Unless, of course, they are nano-machines in your blood, which is a billion times more complex..
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  15. #14  
    Brassica oleracea Strange's Avatar
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    It was a (completely unjustified) comment on Flick's clarification of the type of single-celled organisms he was tlaking about.

    I have just noticed you may not be a native English speaker (I wouldn't have known) so, just in case, "moving the goalposts" is a strategy iun an argument where the person (losing) the argument says, "ah but what I really meant was ...". Related to No true Scotsman - Wikipedia, the free encyclopedia
    Without wishing to overstate my case, everything in the observable universe definitely has its origins in Northamptonshire -- Alan Moore
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  16. #15  
    Forum Professor Zwolver's Avatar
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    Ah, your lecturing me english :P ow well.. i'm pretty happy to know MOST english common words and phrases. I think i can get a B on harvard at english. No need to get any higher, is there ..

    Hope i can get the AT-->ON-->BY-->WITH bullshit covered...
    Growing up, i marveled at star-trek's science, and ignored the perfect society. Now, i try to ignore their science, and marvel at the society.

    Imagine, being able to create matter out of thin air, and not coming up with using drones for boarding hostile ships. Or using drones to defend your own ship. Heck, using drones to block energy attacks, counterattack or for surveillance. Unless, of course, they are nano-machines in your blood, which is a billion times more complex..
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  17. #16  
    Brassica oleracea Strange's Avatar
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    Quote Originally Posted by Zwolver View Post
    Ah, your lecturing me english
    I would never have guessed you were not a native English speaker. When you write nonsense, it is perfectly grammatical nonsense
    Without wishing to overstate my case, everything in the observable universe definitely has its origins in Northamptonshire -- Alan Moore
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  18. #17  
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    Quote Originally Posted by Strange View Post
    Quote Originally Posted by Zwolver View Post
    Ah, your lecturing me english
    I would never have guessed you were not a native English speaker. When you write nonsense, it is perfectly grammatical nonsense
    Thank you.... verrrry much. (sacrastic cough).
    Growing up, i marveled at star-trek's science, and ignored the perfect society. Now, i try to ignore their science, and marvel at the society.

    Imagine, being able to create matter out of thin air, and not coming up with using drones for boarding hostile ships. Or using drones to defend your own ship. Heck, using drones to block energy attacks, counterattack or for surveillance. Unless, of course, they are nano-machines in your blood, which is a billion times more complex..
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  19. #18  
    Forum Junior JoshuaL's Avatar
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    Quote Originally Posted by Zwolver View Post
    Hope i can get the AT-->ON-->BY-->WITH bullshit covered...
    IN! You forgot in! :P English, she is a fickle beast.
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