Posts tagged evolution
So i have been playing around with the idea of a world that due to its orbit (it is both quite a bit away from it's parent star and due to its orbit permanently between two much bigger planets) has...
In the mythological stories of the Baku, they eat the nightmares of those who call upon it, but if not satisfied they will eat the hopes and dreams of their summoners. Since the visual portion of ...
So I have a humanoidish race of creatures that don't have clavicles and gives them more mobility of their arms/ hyper mobility. While ik about the Cleidocranial dysostosis, the birth defect or muta...
If Earth instantaneously reverted back to when the only organisms were small microscopic creatures in the sea, would evolution happen the same exact way creating the same animals and species? Was c...
Is there a realistic way that a Charybdis-like creature could evolve? Starting with roughly earth-like biology, what is the closest plausible creature to the mythical Charybdis that could exist? ...
So for a thought experiment I came up with the idea of a species that uses wheels for locomotion, sort of inspired by a species shown in His Dark Materials. Under what circumstances would such a sp...
So as most of you probably know, cows don't produce milk all year round for no reason, they need to be pregnant and then you gotta do something with the calves"¦ Now in my story that has an ecosys...
I imagine a biological creature, let's call it 'Marco' for now. Marco can vomit living slimes that survive by attaching to the ground and by doing photosynthesis, at first soft can be shaped and...
I want to have a species based on humans, where everyone is born as female, but switches gender to male later in their life. Assuming that transformation takes 4 years (*) hermaphrodite is born as ...
I'm thinking about underground humanoid cvilisation without knowledge about outside world and how could they have eyes? Known fact is that a lot of animal living in dark don't need eyes. (cave or...
God had decided that humanity as a species is an overall disappointment. After wiping out all life with a flood, he decided to start from scratch. Humanity's new environment would be constantly cha...
This is a follow up question to one that I made earlier. Basically, after God wiped out all life after the flood, earth has changed into a lush but dangerous environment. Every living thing, from ...
How could a vertebrate animal evolve for extended flight before evolving land adaptations? Is that even possible at all? By extended flight, I mean breathing air and spending most of their time in...
Why and how could an organism evolve to make its bones or exoskeleton out of a UTH (Ultra High Temperature) ceramic like TiB2, WC, B4C, or TaHfC? Is it even possible?
Mammals live in some fairly extreme environments, but the most heat-tolerant ones all seem to cheat: e.g., they dig burrows to stay cool during the day and come out at night, avoiding the heat, or ...
In my world there is a race of humans who are disproportionately female. They are closely derived from and very similar to real-world humans, but are unable to interbreed with the other races as th...
Assuming humans remained hunter-gatherers, would it be anatomically possible for us to evolve digitigrade legs? Or, is our anatomy too specialized and are we stuck the way we are? I am not asking ...
I have a species of early primates (lemur-like but not lemurs) developing into an intelligent species like humans (and yes, there is some influence from an intelligent species, it's not 100% natura...
I am working on a species that ressembles humans beings and that, although slightly engineered in the sense that the evolutionary leaps are aided by genetic modification, they are left to go throug...
A rare design I have seen in fantasy games is a wyvern or humanoid being with hand like wings to fly I'm curious if this is in any way a practical design and the reason something like this would ...
How could a creature explode itself? Why would it? We see example ideas of these all the time (Scourges, creepers, etc.) but nobody ever said how or why a creature would intentionally explode. I...
Is it possible for an organism to evolve a capacitor if the conditions were right (carnivore that stuns fish, living in complete darkness, etc.)? What kind of challenges would there be to evolve so...
On this parallel earth all vertebrates received the ability to efficiently produce super strong materials from readily available minerals/nutrients in the mid Triassic. The specifics of these comp...
EDIT: As many have pointed out, the whole Lunar Collision aspect I originally envisioned is probably more extreme than I predicted. I don't know where to start as far as the math goes, although my ...
Here on the stack exchange we talk about dragons... a lot. We have discussed all the factors that would allow dragons to exist and yet, there is a question we have not asked. What evolutionary pres...
On the earth today most animals use a two sex mating system where male and female provide the same amount of genetics to the resulting offspring, despite the fact that in many cases the female prov...
This post about a tidally-locked planet got me thinking about plants and wind. Let's say plants evolve on a perpetually windy, tidally-locked earth-like planet around a sun-like star at about 1 AU...
I'm thinking of an alien alien world that has a vast biosphere. Now the creatures of this planet have evolved to be hexapods though there are a few creatures that are tetrapods (only have four limb...
I have a species that I wish to create whose life cycle is similar to a Xenomorph from the Alien series. By this, I mean to create a species wherein: A Xenomorph, or Species A, the base creature,...
For my question, I was wondering the idea of a creature that needed to be visually seen by Humans or else, if no sight on it by a human being has been made then it can only last for 24 Hours. I w...
I understand that some non human animals build structures that they innately know how to build, such as how birds innately know how to build nests, and spiders innately know how to make webs, and b...
If you look at one of my previous questions, I ask about a tidally locked planet and it has come to my understanding that such a planet would be under a lot of radiation from the sun. So I'm curiou...
I'm thinking of a predatory creature that lives deep inside large caves. Because this environment is so dark, the creature's eyes have disappeared through evolution since the creature relies on ech...
Venoms have evolved in certain classes of animals on Earth (notably snakes and frogs, but also fish and maybe elsewhere that I can't think of right now), sometimes for defense and sometimes (partic...
Disclaimer: This question, unlike my other tree related question, was brought about by pure whimsical daydreaming. I also threw the term "evolve" around a lot, I should clarify that what I asking i...
So I'm trying to design my alien life around the pressures they might face just like earth's wildlife, and most things I've made plausible life that is similar to ear but not giant dinosaur cats. T...
Background, with potential spoilers: In the Netflix show Stranger Things... ...there is an otherworldly creature known as the Mindflayer, which can telepathically control creatures in our worl...
Premise I was inspired by Karl Niklas who used computer modeling to simulate the ideal structure for a tree when different traits were favored. Here is a chart summarizing his work: Explanation...
Could a creature plausibly exist with its diet consisting of consuming ice, possibly for hydration? I'm unaware if it needs a secondary diet for nutrition, but how would its metabolism feasibly w...
I like the classic trope of dragons loving gold and collecting it in their lair, yet it seems poorly justified. I know that it is often used as a metaphor for greed; "dragons disease" to show how m...
I wonder whether the birds or other flying animals heavier than air could evolve without trees of other protruding objects?
In this world, a progenitor has created a mass of order out of chaos, with the possibility of entropic fluctuations increasing the further out from the center you get. What do I mean by entropic fl...
In a brand baby spanking new world I am building, appropriately named Escargard, punningly named by the AndyD273, mollusks have become the dominant form of life. Resulting in aliens similar to thos...
Background In case you haven't heard: there are places in the Amazonian Jungle called Devil's Gardens. The gardens are large swaths of land composed of almost entirely one single tree the Duroia h...
Are there any unique challenges life would face evolving on a planet orbiting a Cepheid Variable star? I'm aware this is a broad question, so to narrow it down, consider this a question about Grea...
Here on "Earth" organisms tend to evolve only enough mental processing power to handle sensory inputs in modest amounts. Taking "human" brains for a quick example, even though we have millions of s...
Far, far into the future, pretty much the entire Milky Way has been colonised by humans. The thing is that now the Empire has fallen, the technology of FTL travel has been lost in most places. Thos...
I have had an idea for a possible story, where the protagonists are some kind of future, sapient hominid descendants (Not descended from humans; bonobos or gorillas or something). The main premise...
On my world, the equivalent of the Cambrian/Avalon explosion happened 5 byr (2 byr after formation) ago as opposed to 0.5 byr ago on Earth. The planets rough parameters are: mass between 0.4 and...
