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This story takes place about 300 years in the future and humanity has since come into contact with hundreds of alien races, you get the picture. Basically, I have this character who is half human a...
So, when you use a dragon for military purposes, it's probably for the best to keep them close and keep them happy. Which means building them a place they can call home. Now, housing a dragon is q...
I did a lot of research and asking questions about dragons' breathing ability: if there was a dragon that spits pyrophoric liquids like a spitting cobra A tiny fire-breather can any animals (exam...
I'm new to this and my scientific knowledge is massively lacking in this area (so please take it easy on me!) I'm writing a historical science-fiction novel. Parts of it set in the past (1977) and ...
I know theoretically the human stomach is above the centaur's stomach so the obvious answer would be no. But seeing as centaurs aren't real and we don't know what their internal biolody would look...
in most science-fiction stories that include alien races, said aliens have a roughly humanoid appearance (being an erect bipeds). now while it's likely that the vast majority of sapient life (being...
Around 5 million years ago, a group of primates diverged from early Baboon ancestors migrated into Sicily becoming Triclopes (here's a rough mock up of what a Triclops skull might look like): som...
as the title, my question is how big a pelican like creature with its pouch mouth need to be in order to carry grown up human and still fly. since as far as i know hollow bone is to fragile for hu...
My planet has a day length of ~52 earth hours. This means storms like hurricaines and thunderstorms will be weaker. How do I combat this and generate really strong storms and winds on a slow rota...
I'm not sure if this site or Astronomy would be better, but I figured I would try here instead. I am attempting to create a [semi]plausible star system in Alpha Centauri for a series. The system w...
The Diclonii are an evolutionary offshoot of modern homo sapiens from the Elfen Lied series. Most Diclonii can get distinguished from humans thanks to small bone and cartilage horns resembling cat ...
This is a post-apocalyptic setting I'm working on. The world has been overrun by invisible monsters from another parallel universe. They can be heard and smelled, and they can form claw prints on t...
I'm thinking about a design like this generation ship, which obviously has spin gravity. Would the fact that the ship is rotating affect the use of a magnetic sail? The magnetic sail as a sort of...
So, If you're familiar with the anime GATE (not to be confused with Stein's Gate) or A Connecticut Yankee in King Arthur's Court, you probably know what's going on and why I have a boiling hatred t...
So, it is relatively common to have various creatures grow crystals. This generally happens outside of the body (at least partially), but internal crystals aren't unknown either (see for example, e...
I recently started to wonder what a tree would be like on an alien world, and one thing that popped in mind for these trees was their color. The hosts star and environment would have a effect on sa...
As we know, bi-directional faster than light (FTL) travel can cause paradoxical situations. One possible way to resolve this would be a multiverse theory: Whenever a paradox could arise, the univer...
One of the respondents in this thread suggested a 7-sex system with the following features: An idea I came up with years ago was a variation on the male/female/carries-offspring idea. This spec...
The Apex predator of the Sea of Grass biome from planet Andromeda is mostly bipedal, but capable of facultative quadrupedalism, it has long limbs, powerful claws on its hands and is roughly the siz...
In the story I'm writing, a group of African penguins evolved to be fully upright (instead of having their knees bent like modern penguins). Now some basic characteristics of these "erect pengu...
The MC1R gene turns pheomelanin into eumelanins but there are another kind of pehomelanin called pheochromes. So if a brunette or black person used a cosmetic gene therapy to turn off this gene how...
Is there a way for a species to essentially become a living incubator of sorts? Not the other way around, as in Plausible ways for the alien species to be able to impregnate every and any species?,...
I want to create a glutton creature that can open its mouth wider than the prey item like snakes do, but also can bite through that big hard object and even chew it; this creature doesn't swallow p...
If you took a giant drill (~one hundred meter circumference) and bored down two kilometers into the moon, what would it look like (assuming the lighting was good)? Is there a gradient, or is it a u...
My postulated creature will look something like this: or like this: Its description is as follows: it's a non-obligate carnivore its height is, on average, about two feet it lives in arid h...
