| Speculative biology is simultaneously a science and form of art in which one speculates on the possibilities of life and evolution. What could the world look like if dinosaurs had never gone extinct? What could alien lifeforms look like? What kinds of plants and animals might exist in the far future? These questions and more are tackled by speculative biologists, and the Speculative Evolution welcomes all relevant ideas, inquiries, and world-building projects alike. With a member base comprising users from across the world, our community is the largest and longest-running place of gathering for speculative biologists on the web. While unregistered users are able to browse the forum on a basic level, registering an account provides additional forum access not visible to guests as well as the ability to join in discussions and contribute yourself! Registration is free and instantaneous. Join our community today! |
| Questions that don't need their own topics vol.2; New and fresh | |
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| Topic Started: Jan 4 2018, 11:18 AM (26,875 Views) | |
| Russwallac | Mar 19 2018, 10:44 AM Post #346 |
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"Ta-da!"
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Plausible? Yes. Likely? No. The chances of alien lifeforms resembling Earth organisms on anything more than a very basic life are astronomically small. |
"We've started a cult about a guy's liver, of course we're going to demand that you give us an incredibly scientific zombie apocalypse." -Nanotyranus
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| Empyreon | Mar 19 2018, 12:47 PM Post #347 |
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Are you plausible?
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To consider the possibility of a creature whose legs have fused together into a single limb, look up sirenomelia. It's a mutation that can indeed occur, but then the onus is on explaining how such a feature could prove advantageous enough to supplant the "two-leggers", let alone a valid form of life. Edited by Empyreon, Mar 19 2018, 12:48 PM.
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Take a look at my exobiology subforum of the planet Nereus! COM Contributions food for thought
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| ZoologicalBotanist | Mar 19 2018, 02:27 PM Post #348 |
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Mixotrophic Sea Slug
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Would a creature that lives in caves but finds food outside of caves be a trolgobite, trogloxene, or troglophile? The cannot live anywhere but the cave due to their nesting requirements, but are able to exit to find food. |
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My Projects Active On Hold Coming Soon My DeviantArt Nature and Wildlife DiscordRandom Quotes and Stuff --Windblown-- I do not know where I will go. I travel where the breeze will blow. For I know, deep in my soul, I am windblown. | |
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| Archeoraptor | Mar 19 2018, 03:15 PM Post #349 |
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"A living paradox"
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I mean molecular clock says otherwise? it seems afrotherian groups splitted like 80 million years ago afaik afrotheria is a groups only based on genetic data,so maybe tenrec are justderived from ancestral afrotheres |
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Astarte an alt eocene world,now on long hiatus but you never know Fanauraa; The rebirth of Aotearoa future evo set in new zealand after a mass extinction coming soon......a world that was seeded with earth´s weridest and who knows what is coming next........... " I have to know what the world will be looking throw a future beyond us I have to know what could have been if fate acted in another way I have to know what lies on the unknown universe I have to know that the laws of thee universe can be broken throw The Spec I gain strength to the inner peace the is not good of evil only nature and change,the evolution of all livings beings" " Spoiler: click to toggle | |
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| Mynameisnotdave23 | Mar 19 2018, 03:35 PM Post #350 |
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Idiot Extraordinaire
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Plausible? No. An alien living on an alien planet with deferent enviroments and predators would probably look nothing like anything from Earth. The most plausible way to make an anthropomorphic animal is to have it evolve in a way similar to that of humans. Even then, they would still have different anatomy. |
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Projects Avisia, an island archipelago isolated for over 88 million years, and is know home to megafaunal birds, mekosuchine crocodiles, and many relics. (currently in infancy) Read here: http://s1.zetaboards.com/Conceptual_Evolution/topic/8192410/2/#new Deviantart: https://mynameisnotdave23.deviantart.com/ | |
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| whachamacallit2 | Mar 19 2018, 04:03 PM Post #351 |
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Guy who yells at squirrels
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The rifts would be on new spots. The regions where continents collided would be pretty thick and melded together by that point in time, to the point where they would probably be the more resilient parts to rifting. |
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Click for shameless self plug! Spoiler: click to toggle Get you one at http://whachamacallit1.deviantart.com/ Learn the life, history, and fate of the tidally locked planet Asteria at: http://s1.zetaboards.com/Conceptual_Evolution/topic/5725927/1 | |
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| Cool_Hippo43 | Mar 20 2018, 01:21 PM Post #352 |
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Hippo
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how can multiple moons interfere with life on a planet? imagine a planet with 3-4 times the size of the earth (as gliese 832c). this planete has 3 moons, one being a little bigger than mars, another the size of our moon, and last one smaller than pluto? considering that the smallest moon is very far, how would this structure change in the tides for example? and another thing any contradiction to planets in the same orbit? like an "anti-earth", on the other side of the sun - or would it create a mess in the organization? or something like a lot of planets orbiting the same star? to what extent are they going to eat to run over? |
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| Empyreon | Mar 20 2018, 04:21 PM Post #353 |
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Are you plausible?
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Perhaps I'm missing something, but depending on the precise set-up (and calculating the interaction of more than two celestial bodies is beyond my skill) it could be stable and have little impact on the planet's life, or it could be wildly catastrophic, affecting the planet's precession, and therefore causing climate fluctuation too extreme for life to flourish.
You're talking about Lagrange points, probably L3, if you're wanting something on the exact opposite extreme of the orbit, . I wish I could remember where (I'll keep looking), but "somewhere" I read that several objects can in fact collect in/around Lagrange points, but if they are of appreciable size they don't maintain a stable orbit. I could be way off on this, but that might be a nail in the coffin for that idea (please prove me wrong!). Another option might be a double planet system. A planet's "moon" is of such as size as to be comparable to the planet itself, and they thus orbit each other in many senses. But if you want the two planets far from each other, but on the same orbit, Lagrange points should be the start of your research. |
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Take a look at my exobiology subforum of the planet Nereus! COM Contributions food for thought
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| ZoologicalBotanist | Mar 21 2018, 10:04 AM Post #354 |
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Mixotrophic Sea Slug
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I recently read that the larva of the darkling beetle can eat plastic. Is this accurate? Multiple articles and websites are claiming this, but I would like a second opinion. Also, would a small creature like a mite, for example, be able to develop the instinct to protect a group of creatures? I have an idea for a mite that protects a group of tardigrades to eat later but am not sure how plausible that is. Edited by ZoologicalBotanist, Mar 21 2018, 12:40 PM.
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My Projects Active On Hold Coming Soon My DeviantArt Nature and Wildlife DiscordRandom Quotes and Stuff --Windblown-- I do not know where I will go. I travel where the breeze will blow. For I know, deep in my soul, I am windblown. | |
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| Cool_Hippo43 | Mar 21 2018, 06:07 PM Post #355 |
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Hippo
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when it comes to the co-orbital system, I'm talking about a planet located exactly on the other side of the sun. like this ![]() here are a few posts from a blog about these co-orbit things, they do not specifically talk about it but if you want to know more about https://planetplanet.net/2014/05/22/building-the-ultimate-solar-system-part-4-two-ninja-moves-moons-and-co-orbital-planets/ https://planetplanet.net/2016/11/07/the-ultimate-trojan-2-star-planetary-system/ https://planetplanet.net/2017/05/03/the-ultimate-engineered-solar-system/ https://planetplanet.net/2017/05/01/the-ultimate-retrograde-solar-system/ Edited by Cool_Hippo43, Mar 21 2018, 06:08 PM.
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| Cool_Hippo43 | Mar 21 2018, 06:11 PM Post #356 |
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Hippo
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this is interesting, I wonder if any type of animal that feeds on plastic (a multicellular animal) Maybe some kind of genetically modified animal specifically for this, or if it could evolve naturally for this |
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| Cool_Hippo43 | Mar 22 2018, 05:02 PM Post #357 |
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Hippo
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questions about darwin iv ... I know most do not have an answer in the show / book but what do you think about it? How do Darwin's animals reproduce? They're so different, do they lay eggs or things like that? how the hell did some of those things evolve? like, what could be the ancestor of a skewer? or the emperror sea strider? he's got mouths on his feet! |
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| Tartarus | Mar 22 2018, 06:17 PM Post #358 |
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Prime Specimen
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As with Earth's creatures, Darwin IV's creatures had multiple forms of reproduction. There were egg laying creatures, and also creatures that gave live birth. Perhaps the most unusual reproductive method we hear of in the book is that of the daggerwrist. At a certain stage a pregnant daggerwrist will have her belly slashed open by another daggerwrist, kinda like an extreme version of a Caesarean section, killing her but letting the baby out. The baby is then cared for by the daggerwrist that let it out of its mother. As for how the planet's creatures evolved this is generally left up to the reader's imagination (or the viewer's imagination in the case of the TV documentary). I myself speculated on possible evolutionary relationships. On your two examples- skewer and emperor sea strider- I speculated them to both belong to a clade of flying "vertebrates" descended from flightless quadrupeds. I put the skewer on a branch of flyers who retained flight all their lives and the sea strider on another branch who became flightless as adults (juvenile sea striders are specifically shown as being flying creatures). As for the mouths on the feet, these are a little odd to explain, though considering the internal physiology of all the creatures is never explained (not in any real detail anyway) I guess there could be internal tubes for food arranged in such a way that evolution could change the entry point from the head to the feet. |
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| Bob-The-Seagull-King | Mar 22 2018, 10:31 PM Post #359 |
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Bob, king of the seagulls
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In regards to creatures with legs running straight along the underside of the body in a line (as an example, the Gyrosprinter from Darwin IV) is it better for balance to have the body wide and flat, tall and thin, or just a general cylindrical sausage shape? I'm looking at the possibility of having a running creature with a similar leg-plan and would like to know which way I should lean the body shape. |
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“The search for truth takes us to dangerous places,” said Old Woman Josie. “Often it takes us to that most dangerous place: the library. You know who said that? No? George Washington did. Minutes before librarians ate him.” ― Joseph Fink, Welcome to Night Vale “Librarians are hideous creatures of unimaginable power. And even if you could imagine their power, it would be illegal. It is absolutely illegal to even try to picture what such a being would be like.” ― Joseph Fink, Welcome to Night Vale "Blep" ― Diglett, My Blue Tonge
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| peashyjah | Mar 22 2018, 10:48 PM Post #360 |
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Bydo
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How the Daggerwrists reproduce seems very painful for the pregnant female daggerwrist but gruesome to some people. |
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Discontinued projects: The New Ostracoderms (i might continue with this project again someday) The Americas (where in 58 million years from now in the future North and South America has both become isolated island continents) All Expansions (my attempt at expanding the universe of All Tomorrows by Nemo Ramjet aka C.M. Kosemen, started June 6, 2018) Anthropozoic (my attempt at expanding the universe of Man After Man and also a re-imagining of it, coming 2019 or 2020) New Cenozoica (my attempt at expanding the universe of The New Dinosaurs and also a re-imagining of it, also coming 2019 or 2020) All Alternatives or All Changes (a re-telling of All Tomorrows but with some minor and major "changes", coming June 10, 2018) | |
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