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| "Terrarised" alien worlds.; what happens when various alien worlds are introduced with Earth life. | |
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| Topic Started: Apr 3 2010, 09:05 AM (1,586 Views) | |
| Forbiddenparadise64 | Apr 3 2010, 09:05 AM Post #1 |
Adult
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ok i had an idea similar to Canis Lupus's future of the kinds idea, with multiple projects. i have decided to do several different planets populated by Earth organisms. I know this has been done before, and im still not sure whether this should be placed in the habitable zone, but i have already come up with ideas for it. Here we go: ARTHROPODA: This, as the name suggests, is a world dominated by introduced arthropods. There are also cnidarians, sponges, nematoid worms, tardigrades and flatworms too. It holds most of the arthropods of Earth, except those dependant on other phylums (ie parasites). Arthropoda's environment is different to Earth's. at the time humans introduce the animals after the plants, it has a gravity of 79%, but has an atmospheric density of 1090 millibars (compared to Earth's 1013) and an (current) atmosphere consisting of 72% nitrogen, 26% oxygen (although eventually it will get considerably higher), <2% argon and 0.1% carbon dioxide (which allows plants to grow more prolifically). I will cover the later time periods of 60, 120 and 250 million years after the first colonists are introduced. I hope this is plausible enough for you. HEAVY METAL: No this isnt a fantasy world tributed to my favourite genre of music, but a world consisting of heavy elements such as iron, copper, aluminium ore and other metals. It is 1.94 times Earth's mass and has a diameter of 10,982 kilometres, with an average global temperature of 18 degrees celsius. The atmosphere has 17% oxygen and a pressure of 1800 millibars. The main groups are mollusks, woodlice, cockroaches, termites, ants, earwigs and a single tetrapod: the common house gecko. This might not be the most plausible of my projects, but im going to do it anyway. NITROGUS: This is one of my most bizarre projects- a world populated almost entirely by bacteria and certain (probably GM) protozoa which respirate using nitrogen. Yes, nitrogen isn't as efficient as oxygen respiration, but it can be done. I dont expect any large multicellular organisms myself. This world has about 94% of Earth's mass and a density of 1020 millibars. Im gonna think up another 7 worlds later in my own spare time, but good luck commenting and suggesting ideas. |
Prepare for the Future Walking with the future: Allozoic (pts 4-6)http://s1.zetaboards.com/Conceptual_Evolution/topic/3252142/14/#new 
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| Ook | Apr 3 2010, 09:20 AM Post #2 |
not a Transhuman
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what about world where is only tetrapod birds? |
   
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| Forbiddenparadise64 | Apr 3 2010, 10:49 AM Post #3 |
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Yeah! I actually was planning on one of those worlds! lol. I was also thinking of some sort of super Earth world, a mars-massed world, a world where the only animal is a targigrade and a gastropod dominated world. Sounds kinda wacky. But I'm happy to supply this underrated website with ideas. |
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Prepare for the Future Walking with the future: Allozoic (pts 4-6)http://s1.zetaboards.com/Conceptual_Evolution/topic/3252142/14/#new
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| Pando | Apr 3 2010, 10:53 AM Post #4 |
Obey or I'll send you to the moon
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In Arthropoda I would expect jellyfish and crustaceans in the seas and on land giant spiders, scorpions, dragonflies, and myriapods as predators. In heavy metal I honestly expect that for the first hundred million years or so it'll be a boring world. Afterward there could dinosaur-like geckos (but they can't reach the sizes they did with the dinosaurs, due to heavier planet and less oxygen), but the arthropods will get smaller. No more coconut crab or goliath spider-sized arthropods on that planet! And nitrogous will be a world of single cell organisms. And I agree with Bexi, a world of GE'ed tetrapod birds of your choosing will be a very cool project. --EDIT-- For the third post that was posted while I was posting: There could be speedslugs and stuff, like that, but unless they develop a skeleton (best an endoslkeleton) they are doomed when tartigrades reach visible sizes. Imagine an arthropod tartrigade! Edited by Pando, Apr 3 2010, 10:55 AM.
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| Forbiddenparadise64 | Apr 3 2010, 11:09 AM Post #5 |
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Adult
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Oh. i made the targigrade and gastropod worlds seperately. dont worry im new, ive got things to learn. i think i should scrap that nitrogen world idea because it would be boring to most people studying a future evolution of bacteria that cant be multicellular. An arthropod targigrade would look pretty cool, but I think the gravity would have to be quite a bit lower for them to reach any interesting sizes (although i could merge this project with the mars-mass world)- how large do you think any distant descendants of a targigade on a mars massed planet could actually get? I'm also thinking of a world with a thinner atmosphere and maybe even a twin planets, one dominated by one group, the other dominated by another. I wouldn't expect the life forms to be similar, like in Star Wars or Doctor Who though. Since I'm deciding to do thirteen worlds (and i decided to merge the targigrade and martian worlds together), I've still got 4 worlds to think of. Maybe you and other people on the forum could suggest something. |
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Prepare for the Future Walking with the future: Allozoic (pts 4-6)http://s1.zetaboards.com/Conceptual_Evolution/topic/3252142/14/#new
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| Canis Lupis | Apr 3 2010, 11:35 AM Post #6 |
Dinosaurs eat man, woman inherits the Earth.
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I've always wanted to see what a world dominated by humans that could NEVER reach sentience would look lke. |
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| Holben | Apr 3 2010, 11:51 AM Post #7 |
Rumbo a la Victoria
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Pretty much like ours, except more arboreals due to the giant forests stretching down to the tropics. Giant animals would still be rare for a few MYH though. |
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Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea. "It is the old wound my king. It has never healed." | |
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| Canis Lupis | Apr 3 2010, 11:53 AM Post #8 |
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Dinosaurs eat man, woman inherits the Earth.
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No no. I mean with humans as the only land tetrapods. Think "Man After Man", only without the GE backdrop and the Memory People. |
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| Forbiddenparadise64 | Apr 3 2010, 11:54 AM Post #9 |
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Adult
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Like Man after man? that would be fun. I just hope that I don't screw up with phsycic powers and parasitic humans in two million years! lol. Good idea anyway. I hope I can see more of that future of the kinds posts. |
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Prepare for the Future Walking with the future: Allozoic (pts 4-6)http://s1.zetaboards.com/Conceptual_Evolution/topic/3252142/14/#new
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| Canis Lupis | Apr 3 2010, 11:54 AM Post #10 |
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Dinosaurs eat man, woman inherits the Earth.
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Oh, you'll see more. Don't worry. |
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| Pando | Apr 3 2010, 12:05 PM Post #11 |
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Obey or I'll send you to the moon
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Why scrap the tartigrade idea? I said them growing big with an exoskeleton. Skeletons evolved many times on Earth, who says that it won't happen again? And I love imagining about twin planets! Maybe if they have super huge dense atmospheres the outer atmosphere could be shared (don't know if that's possible though), but if it is then I can imagine flyers that could migrate between worlds and plants that seeds sometimes go to the other world. Heck, maybe the life on both planets could of started from only 1 of those! |
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| Forbiddenparadise64 | Apr 3 2010, 12:07 PM Post #12 |
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I think that the tardigrade world would be in some ways similar to anthropomundus (except the considerably smaller world it is set upon). Over the years, they would evolve into increasingly diverse forms, but I would have to measure it over a long period of time, with the first era being at least 70 million years after introduction (i dont know about their breeding cycles much), to something resembling the cambrian explosion in style. I also want to do something for that thinner atmosphere world: eg how do organisms deal with less air and more radiation? The "metahuman" as i call it dominated world would take place over a considerably longer time than man after man- over millions to tens of millions of years instead. And as being the only tetrapods there would be much greater diversity (man after man has others, but it never focuses on them AT ALL! which doesn't make sense as they would still evolve into niches that the humans couldnt reach) So I'm gonna work on that. Nice ideas, guys! |
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Prepare for the Future Walking with the future: Allozoic (pts 4-6)http://s1.zetaboards.com/Conceptual_Evolution/topic/3252142/14/#new
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| Forbiddenparadise64 | Apr 3 2010, 12:18 PM Post #13 |
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I never said I was scrapping it. I said that I was merging it with the paramars idea so that targigades are introduced to a mars like planet and grow prolifically with no competition. And yes, double planets would be very cool to do, although remember they are descendants of Earth creatures. I could understand it with an alien world on the other hand, Pandora-esque. I think with the thinner atmosphere world, life would be vulnerable around a red dwarf or if a gamma ray burst occured (like what could possibly have happened in the ordovician mass extinction). I just thought of a new idea: GM reptiles, birds and amphibians with not two pairs of limbs but three or even four. Ok... im not sure whether thats plausible in any way but I'd like to see the results. I may also be thinking of a completely mammalian world, although it may go over my 13 number. Who cares, I could extend that number to 20 so that you guys could get some freedom. |
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Prepare for the Future Walking with the future: Allozoic (pts 4-6)http://s1.zetaboards.com/Conceptual_Evolution/topic/3252142/14/#new
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| Pando | Apr 3 2010, 12:23 PM Post #14 |
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Obey or I'll send you to the moon
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So these are open projects? And I forgot that this was in evolutionary continuum and not habitable zone about the twin planets. It was my imagination going wild. |
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| colddigger | Apr 3 2010, 09:49 PM Post #15 |
Joke's over! Love, Parasky
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I don't see humans evolving body-wise to fill niches... technologically, culturally, economically sure... These humans would have had to have been dumbed down a load for it to work. |
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Oh Fine. Oh hi you! Why don't you go check out the finery that is SGP?? v Don't click v Spoiler: click to toggle | |
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