Questions tagged [biology]

For questions about living things. Does not exclude aliens, but additional information is usually necessary (consider using "xenobiology" instead).

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What would a crystal-based creature look like? [closed]

One kind of alien concept I want to explore in my sci-fi is Jean Schneider’s hypothesis about a non-chemical crystal biology. According to Schneider, the organism’s primitive ’central memory’ is based ...
Fredrik Hansing's user avatar
-1 votes
1 answer
160 views

What life could survive in a backrooms-like enviroment [closed]

you know what the backrooms are, you're on the internet. for those who somehow don't: the backrooms is an internet urban legend that entails a pocket dimension that you can get to via no-clipping ...
redfrogcrab's user avatar
  • 1,346
1 vote
2 answers
145 views

Anatomically Correct Chupacabra [closed]

This is a submission for the Anatomically Correct Series. The Chupacabra is a legendary cryptid animal from North American folklore. It is a strange bear-like or reptilian creature that sucks the ...
Rhymehouse's user avatar
  • 3,563
1 vote
4 answers
114 views

How much food/drink would it take to properly feed 6 inch vs 72 feet people if the amount they need to eat stayed proportional to normal sized humans?

So say that a 5'6/6 feet person is shrunk down to action figure size(around 6 inches tall/12x smaller) or comes from a human/humanoid species that is naturally that size, how much food and drink would ...
Conan Highwoods's user avatar
3 votes
6 answers
115 views

How do my genetically altered people survive a smokey environment?

I have a world heavily polluted. A war long ago sustained by automated factories has kicked up a significant amount pollution and debris into the atmosphere. This has caused a permanent mist/fog of ...
FIRES_ICE's user avatar
  • 3,143
0 votes
1 answer
242 views

Humans breeding with dragons [closed]

Firstly, by dragon I am referring to the type with 4 legs a tail and wings. Their actual sizes vary greatly, from the size of your average house cat to feasting on planets in one bite. Most are ...
PirateFox's user avatar
16 votes
8 answers
9k views

How large would a tree need to be to provide oxygen for 100 people?

The idea is that a population of beings have a superior claim over others for the privilege of oxygenated air in a city/large settlement. I wanted to make this work that the other residents in the ...
zar's user avatar
  • 177
1 vote
1 answer
276 views

Could a biological organism have organs that perceive entropy?

A biology textbook I once read described humans and other organisms as "moving zones of low entropy", referring to the fact that our bodies display a high level of organization and ...
xojfqa's user avatar
  • 23
7 votes
10 answers
3k views

How would a group of people inspired by European ethnic groups maintain their lighter skin in a desert climate?

Messing around with different aesthetics and groups for this story, and I'm wondering how to go about this. I wanted to do a setting where a region is full of basically ancient Egyptian inspired ...
Sundiata 's user avatar
8 votes
7 answers
4k views

Is it possible for a living creature to have no need for oxygen or some other gas

Is it possible for a multicellular living creature to have no need to intake oxygen or some other gas? So this question came to mind when I was pondering the plausibility of space-dwelling life forms. ...
HomegrownPotatoes's user avatar
2 votes
1 answer
132 views

Hydrostatic skeletons on a low gravity world

So I'm working on an inhabited planet with around half the gravity of Earth (assume everything else is the same, just the gravity differs). While thinking about what kinds of terrestrial creatures ...
MewTheCatsaur's user avatar
11 votes
4 answers
1k views

How would I go about explaining the science of a world where everything is made of fabrics and craft supplies?

I'm working on a little project called Scrapbook Street where everything is made of fabric and or craft supplies, but while working on the world of the project, I've started to wonder how the world ...
StarreDragon's user avatar
8 votes
8 answers
5k views

How to make chocolate safe for Keidran? (Basically Dog-people)

Backstory (skip if desired) Let's take our cute and self-conscious protagonist, Jayden! (For the people that read and responded to the post about the genetics behind keidran and the colonization of ...
Sam Kitsune's user avatar
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5 votes
3 answers
342 views

How many children could a human have in one pregnancy (with safety being no concern)?

There's a nation with extreme fertility and population problems. Someone suggested the government could induce certain candidates to have a great number of children in a single pregnancy... at the ...
user27657's user avatar
1 vote
1 answer
113 views

Abiogenesis ocurring inside an organism

Some time ago I pondered about where does our gut microbiome come from, and upon research it apparently comes from outside, of course, but then in a speculative biology kind of way I envisioned an ...
Paulo Raposo's user avatar
  • 1,211
5 votes
6 answers
2k views

How Would Metabolism Work For A Zombie? [closed]

In this story I am planning to write, zombies are real! A bacterium has resulted in the reactivation of the nervous system in recently dead humans, who will now seek to feed on the flesh of the living!...
Hi0401's user avatar
  • 455
2 votes
3 answers
512 views

What would the technical problems be of mass genetic editing? Keidran Animal-Human Hybrids

The Setting I hear you, I'll make this brief. It's been almost 30 years since the Aurea slow cargo ship arrived at Ilus. When they launched the Aurea, almost a century ago, they had the technology to ...
Sam Kitsune's user avatar
  • 1,984
4 votes
2 answers
588 views

Could supercritical co2 act as a biosolvent?

Let me break it down: Having failed to terraform venus, I am now trying to the process of pantropy to inhabit this world, (pantropy = to adapt humans/Terran life to other planetary environs through ...
user98816's user avatar
  • 8,531
13 votes
6 answers
1k views

Dragon people with colorful horns

Dragonfolk have skin that looks like rock, but sometimes, some of them turn colorful with very bright horns for the same reason salmon turn from grey to red, while others are always bright and colored....
user avatar
5 votes
3 answers
183 views

Replacing proteins with starch in alien biochemistry

So, I am trying to come up with forms of alien biochemistry that are different but not so different that these life forms are drinking battery acid or breathing methane. One idea I read about on Orion’...
user98816's user avatar
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2 votes
2 answers
114 views

Could an alien creature plausibly detect human magnetic fields?

I am designing an alien species that evolved to use magnetoreception to aid in navigation on its homeworld in a manner similar to some terrestrial animals. What would it take for an alien creature ...
user73910's user avatar
  • 823
3 votes
2 answers
304 views

What conditions could fish people evolve to be in their current humanoid form?

My fish people live in underwater nations. They look like a mix between the Creature from the Black Lagoon (left) and the sea creatures from Luca: with the exception of some minorities that resemble ...
Crafter's user avatar
  • 2,585
6 votes
3 answers
1k views

Would compound-like eyes that gave a "pixelated" image be possible/practical

The title is horribly worded, but I have no idea how to otherwise title it. Basically, the idea behind these special eyes is that they would be structured much like real-life compound eyes, but the ...
AlexanderRosary's user avatar
1 vote
1 answer
142 views

Manage Exotaxonomy [closed]

My story is set on a huge ring megastructure (Banks' Orbital), with properties (E.g. axial tilt, diameter, rotation) that allow it to have an Earth-like atmosphere. The biosphere is similar to the ...
JiunoLujo's user avatar
1 vote
1 answer
45 views

Breathing Capability Up Really High [closed]

So my setting is a bunch of islands in the sky above an ocean, and I've toyed with the idea of having a barrier around them so I don't have to Science This Out, but having just discovered this magical ...
ciaraciara's user avatar
2 votes
1 answer
89 views

Could synthetic pheromones affect female fertility?

In a previous post, I asked what chemical agent can cause both nervous and reproductive effects. The chemical agent in question should have the potential to be fatal and preferably exert its effects ...
Theresa Kay's user avatar
  • 2,147
5 votes
2 answers
591 views

Biology of a dyson-tree

The concept of a dyson tree is a genetically engineered plant that can exist in vacuum conditions, and uses the raw materials found in extraterrestrial regolith (I.e. comets, asteroids etc) to produce ...
user98816's user avatar
  • 8,531
1 vote
2 answers
316 views

Using "smart" bio-machine fungus to terraform a planet?

Backstory Ok let's start from the top. A kardashev type 1.2 civilization (a humanity maybe a couple decades to a century ahead of us) builds the beginnings of a dyson swarm, suddenly having unlimited ...
Sam Kitsune's user avatar
  • 1,984
10 votes
2 answers
257 views

A planet with acid rains but its atmosphere is breathable

I am trying to create a planet that rains acid, and that has acidic oceans of water, but a breathable nitrogen-oxygen atmosphere. This planet has native lifeforms that have evolved to withstand these ...
Cruell's user avatar
  • 147
3 votes
1 answer
121 views

Can we modify sportsmen to have muscle latches for spring-action punches and kicks?

Given that safe and reliable genetic modification are relatively common and accessible in my setting, I got interested in all the possibilities and implications that would occur by this, one of these ...
Paulo Raposo's user avatar
  • 1,211
2 votes
1 answer
106 views

Eyes that work like mirror telescopes [duplicate]

So the thing is, I made a question regarding seeing all of the EM spectrum(or at least all that it's possible through biological means) and someone pointed out that the image would be distorted ...
Paulo Raposo's user avatar
  • 1,211
30 votes
14 answers
11k views

I can shrink myself to 3 mm and teleport into someone else's body. How can I make them die of a "natural" cause?

The world is, as we all know, in a sad state: corrupt politicians constantly trying to diminish democracy to increase their own power; international corporations ignoring laws; mobsters taking over ...
Guntram Blohm's user avatar
2 votes
2 answers
97 views

Supercaviating Aquatic Creature

Ever since I watched this video theorizing about how Aquaman could dislocate in water at supersonic speeds via supercavitation I got interested in implementing this hability in some sort of aquatic ...
Paulo Raposo's user avatar
  • 1,211
15 votes
6 answers
4k views

How could an animal have a truly unidirectional respiratory system?

How could a large ectotherm (say, the size and shape of a horse) have a truly unidirectional system of respiration? Not a looping system as found in birds and other archosaurs, but a system where air ...
Daniel Mazdak Honar's user avatar
4 votes
3 answers
188 views

What greenhouse gas could increase the temperature of a planet with the least damage to living beings?

Following this question. After a certain incident, my Earth-like planet now only receives 0.3% of the sunlight it was originally receiving. To compensate for this, someone, as an answer to my last ...
Lulullia's user avatar
  • 155
2 votes
1 answer
230 views

How to calculate the strength of fictional creatures when creating them or at least be precise and believable?

Strength sports and world records seem to not be relieable measurments for upper limits of humanoid strength since in most sports what was back then a world record level amount of strength and ...
user avatar
4 votes
1 answer
245 views

How can a cold blooded animal survive in an arctic environment?

I have found numerous questions on how cold blooded humanoids or at least an intelligent species could survive the cold on this site, but this is not the question I am asking. I want to know ...
Murinus's user avatar
  • 379
6 votes
4 answers
1k views

Could this salt-based venom work?

I am working on an alien creature with a venomous stinger. Injecting its venom causes sodium chloride to rapidly crystallize throughout the victim’s body, swiftly dehydrating them and hardening their ...
Mark Price's user avatar
  • 2,358
2 votes
2 answers
95 views

What catalyst would make redtail catfish rise from the rivers and lakes and gain sentience? [closed]

so, writing up a post-apocalyptic fantasy world where humanity has left Earth and all it's cities and factories and farms behind, and, due to unknown catalyst, a race of amphibious humanoid catfish ...
redfrogcrab's user avatar
  • 1,346
1 vote
3 answers
600 views

How do I Make the "Anime Girl Warrior Physique" Realistic?

In some Anime, Women look nothing at all like men, yet are capable of nearly the same exact feats of physical strength: Image from Dragon Ball Super Is there a way to manipulate biology and ...
Neuro's user avatar
  • 95
1 vote
3 answers
480 views

Does prey necessarily have to be bigger than predator when it comes to larger animals?

I am trying to create various fictional animals and monsters to inhabit my world. Many of the animals I am creating are huge, and some are even bigger than elephants. Some of these include the ...
Crafter's user avatar
  • 2,585
0 votes
4 answers
138 views

What is the most plausible way for a neuralchip to be invented in a post-apocalyptic society?

I'm creating a RPG game set in 2058, after a parallel history scenario where the 1962 Cuban Missile Crisis turned hot, and civilization underwent full scale nuclear war. The game is set in the People'...
Entropy 's user avatar
5 votes
3 answers
268 views

Anatomic design of a 10m tall humanoid that procreates by "splitting"

I'm currently trying to work out how a newly discovered species would work anatomically. It is extremely tall (10 to 15 meters) and has humanoid shape (head with eyes, arms, legs), but it is not a ...
babie389's user avatar
2 votes
3 answers
567 views

Is an "catfish-like" armored skeleton system still practical at larger sizes?

Essentially, I've been trying to make a world of arthropod-like creatures, but as a result of that, the more I researched arthropods, the more I understand the limits their structure has on size. ...
ProjectApex's user avatar
  • 14.2k
0 votes
3 answers
108 views

How can I make my device to last longer?

I am writing a hard science book and there is a watch used by the main character. A glow-in-the-dark watch with GFP (green fluorescent protein) in real life this protein only lasts 26h approx. how ...
herls's user avatar
  • 21
5 votes
2 answers
359 views

How acute can human vision be enhanced to be while retaining the size and shape of the eyeball?

How much more acute could human eyes be biologically engineered to be while keeping the same shape? Animals like eagles have very large eyeballs which due to their size and shape cannot be moved, so ...
Daniel Mazdak Honar's user avatar
4 votes
3 answers
236 views

How to have 'easy' sexual morphs in individuals with two identical sex chromosomes in species with XY or ZW sex determination?

Humans and many mammals have an XY sex determination system. This means that the presence of a Y chromosome makes an individual male, while having 2 X chomosomes (and lacking a Y chomosome) makes an ...
Monty Wild's user avatar
  • 59.1k
15 votes
10 answers
3k views

Why would an intelligent species with male drones allow them on nuptial flights?

I am working on a creature (tentatively calling them “beepipers”) that lives in hives (heavily based on honeybees). The drone (reproductive male) is born to mate with a queen, and will die shortly ...
Mark Price's user avatar
  • 2,358
4 votes
3 answers
174 views

Is it feasible for a quadrupedal species to walk on hooves and hands?

I was working on a chimerical creature with the back legs of a goat and a ape’s upper body when the question occurred to me-how would this beast even walk? I tried looking to mythology for the answer. ...
MostlyBemused's user avatar
8 votes
6 answers
3k views

Could an animal evolve to smell by throwing scents into the environment and waiting for them to get reflected back?

I was thinking about how some animals emit sounds, and then wait for the sound to bounce back to their ears letting them detect other animals to eat as well as obstacles to avoid. Some animals in the ...
Anders Gustafson's user avatar

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