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| 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 (26,848 Views) | |
| IIGSY | Jun 9 2018, 03:43 PM Post #736 |
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A huntsman spider that wastes time on the internet because it has nothing better to do
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Actually, cephalopods have closed systems |
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Projects Punga: A terraformed world with no vertebrates Last one crawling: The last arthropod ARTH-6810: A world without vertebrates (It's ded, but you can still read I guess) Potential ideas- Swamp world: A world covered in lakes, with the largest being caspian sized. Nematozoic: After a mass extinction of ultimate proportions, a single species of nematode is the only surviving animal. Tri-devonian: A devonian like ecosystem with holocene species on three different continents. Quotes Phylogeny of the arthropods and some related groups In honor of the greatest clade of all time More pictures Other cool things All African countries can fit into Brazil
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| opeFool | Jun 9 2018, 05:17 PM Post #737 |
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Adolescent
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So do cephalopods lack membrane-bound protein sodium pumps or are these a different type of pump? |
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Xipetotec | Mbio Bila Mshindi | Diarios California Quotes
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| CaledonianWarrior96 | Jun 14 2018, 05:39 AM Post #738 |
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An Awesome Reptile
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How easy or long would it take for deep-sea fish species to adapt to life in the epi-mesopelagic zones, provided we ignore competition from other fish in this zone? For this question I'll be referring to depths below 1km as deep sea since Mesopelagic sort of fits into deep sea as well and I'm referring to inhabitants of the bathypelagic zone and below that Edited by CaledonianWarrior96, Jun 14 2018, 05:42 AM.
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Come check out and subscribe to my projects on the following subforums; Future Planet (V.2): the Future Evolution of Life on Earth (Evolutionary Continuum) The Meuse Legacy: An Alternative Outcome of the Mosasaur (Alternative Evolution) Terra Cascus: The Last Refuge of the Dinosaurs (Alternative Evolution) - Official Project - Foundation The Beryoni Galaxy: The Biologically Rich and Politically Complex State of our Galaxy (Habitational Zone) - Beryoni Critique Thread (formerly: Aliens of Beryoni) The Ecology of Skull Island: An Open Project for the Home of King Kong (Alternative Universe) The Ecology of Wakanda: An Open Project for the Home of Marvel's Black Panther (Alternative Universe) (Click bold titles to go to page. To subscribe click on a project, scroll to the bottom of the page and click "track topic" on the bottom right corner) And now, for something completely different
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| Mynameisnotdave23 | Jun 14 2018, 03:24 PM Post #739 |
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Idiot Extraordinaire
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Just wondering, but what's the largest an island-living bird can be and still be considered plausible? |
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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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| Archeoraptor | Jun 14 2018, 03:30 PM Post #740 |
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"A living paradox"
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island limit growth to a point ,bird overall have a problem with having short tails for valance but IDKa were the limit lays |
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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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| Bob-The-Seagull-King | Jun 14 2018, 04:43 PM Post #741 |
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Bob, king of the seagulls
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In regards to the amphibian question, the reason they can't tolerate salt water is because the surrounding water is, because of the salts, hypertonic to the animal's cells, causing their body water to flow out of them and into the ocean (same reason that drinking seawater dehydrates you rather than hydrating you) with the amphibians very porous skin making it a real danger to the animal because of how easily water flows to/from the skin. I don't think this prevents any amphibians from ever being in salt water, they'd just need a way to ensure their cells aren't hyper/hypotonic to the water around them. Reason there aren't any oceanic amphibians is there hasn't been any evolutionary pressure for an amphibious animal to evolve into something that only lives in the ocean (which is where most of the salt water is).
Edited by Bob-The-Seagull-King, Jun 14 2018, 04:44 PM.
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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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| Rodlox | Jun 14 2018, 05:56 PM Post #742 |
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Superhuman
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moas, elephant birds, demon ducks of doom...what sort of island? |
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.---------------------------------------------. Parts of the Cluster Worlds: "Marsupialless Australia" (what-if) & "Out on a Branch" (future evolution) & "The Earth under a still sun" (WIP) | |
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| Mynameisnotdave23 | Jun 14 2018, 06:33 PM Post #743 |
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Idiot Extraordinaire
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Like a Madagascar-sized one. |
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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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| LittleLazyLass | Jun 15 2018, 12:39 AM Post #744 |
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Proud quilt in a bag
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At that size you're less limited by the island and more by how big one can make a bird in general. |
totally not British, b-baka! You like me (Unlike)I don't even really like this song that much but the title is pretty relatable sometimes, I guess. Me What, you want me to tell you what these mean? Read First Words Maybe | |
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| CaledonianWarrior96 | Jun 15 2018, 04:15 AM Post #745 |
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An Awesome Reptile
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Fairly certain that elephant birds got as big as they could on Madagascar, which seemed to have been close to the known upper limit birds could reach, so I'd say an elephant bird sized... bird. Actually relating to this question, how tall could a bird actually reach before its height becomes an issue such as balance problems and related problems? The animal does not necessarily have to be a heavy animal; think of it as the giraffes of birds. I also had an idea for terrestrial stork-like animal that could be a predator of arboreal animals that it would pluck from trees like how giraffes probes trees for succulent leaves and thought of them reaching heights of +5 metres (with the bill providing greater height when reared upwards) |
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Come check out and subscribe to my projects on the following subforums; Future Planet (V.2): the Future Evolution of Life on Earth (Evolutionary Continuum) The Meuse Legacy: An Alternative Outcome of the Mosasaur (Alternative Evolution) Terra Cascus: The Last Refuge of the Dinosaurs (Alternative Evolution) - Official Project - Foundation The Beryoni Galaxy: The Biologically Rich and Politically Complex State of our Galaxy (Habitational Zone) - Beryoni Critique Thread (formerly: Aliens of Beryoni) The Ecology of Skull Island: An Open Project for the Home of King Kong (Alternative Universe) The Ecology of Wakanda: An Open Project for the Home of Marvel's Black Panther (Alternative Universe) (Click bold titles to go to page. To subscribe click on a project, scroll to the bottom of the page and click "track topic" on the bottom right corner) And now, for something completely different
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| Nyarlathotep | Jun 15 2018, 04:39 AM Post #746 |
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The Creeping Chaos
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Moas were much Lankier proportionally than even giraffes, and whole no bird except maybe Dromornis exceeded the elephant birds, bird-like dinosaurs like Gigantoraptor could be pretty impressive. It depends on what environmental limits there are and how you want them to develop. |
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| Cool_Hippo43 | Jun 15 2018, 03:47 PM Post #747 |
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Hippo
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many questions but all on the same topic ... by what I know the theory of endosymbiosis says that there was an ancestral Prokaryote that phagocytosed an aerobic bacterium (mitochondria) and originated all heterotrophic eukaryotic beings ... but one of these heterotrophic ekariotics phagocytosed a photosynthetic prokaryon (cyanobacteria?) and gave rise to all eukaryotic things that make photosynthesis. however, the other prokaryotes that did not phagocyte mitochondria continued to exist and turned the bacteria and archeas. some make chemiosynthesis (right?) and others phagocytose other things and ferment ...? now for the main question; if we can deduce that we had 3 groups of basal prokaryotes in a very distant past (cyanobaterias, aerobic mitochondria and phagocytic bacteria), and that from the junction of these 3 groups all eukariotics arose; I can deduce that for example, proto-cyanobacteria (the same ones that were phagocytosed) could evolve separately without endosynbiosis and become a new clade of photosynthetic organisms? or that aerobic bacteria (which would one day turn mitochondria) could also evolve into a new group of organisms in isolation? and are chemosynthetic organisms prokaryotes (bacteria / archeas) or are eukaryotes? can they evolve into multicellular organisms, or can they be a prokariotic bacterium? |
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| Holben | Jun 15 2018, 04:01 PM Post #748 |
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Rumbo a la Victoria
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Cyanobacteria are fully capable of photosynthesis. Prochlorococcus is considered to be the most abundant photosynthesiser (by population) on the planet. Mitochondria are a kind of Alphaproteobacterium, the others in that class have gone off to do a wide variety of things. Their closest relatives are free-living bacteria that live in oceanic surface waters, doing perfectly fine without a eukaryotic host. There are no known chemoautotrophic eukaryotes. |
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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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| Cool_Hippo43 | Jun 15 2018, 04:12 PM Post #749 |
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Hippo
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Okay, so my interpretation on endosymbiosis is correct? |
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| Holben | Jun 15 2018, 04:21 PM Post #750 |
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Rumbo a la Victoria
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Yeah, an organism similar to the Asgard Archaea joined with a protomitochondrion over 1.6 billion years ago (maybe 2.3 billion), and some of those eukaryotes also picked up a cyanobacterium, which must have been before 1.9 billion years ago (possibly 2.1 billion). AFAIK the current dates don't make the order clear, but there's good genetic evidence mitochondria came first. Though, interestingly, cyanobacteria have gone through endosymbiosis in another lineage much more recently. Paulinella chromatophora, an amoeba, picked up a cyanobacterium and developed chloroplasts independently about 100 million years ago. |
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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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7:46 PM Jul 10