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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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 ...
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10 votes
2 answers
173 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 ...
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3 votes
1 answer
98 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 ...
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2 votes
1 answer
89 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 ...
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30 votes
14 answers
10k 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 ...
2 votes
2 answers
78 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 ...
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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 ...
4 votes
3 answers
156 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 ...
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1 vote
1 answer
193 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 ...
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4 votes
1 answer
139 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 ...
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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 ...
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2 votes
2 answers
84 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 ...
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1 vote
3 answers
495 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 ...
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1 vote
3 answers
338 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 ...
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0 votes
4 answers
123 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'...
5 votes
3 answers
213 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 ...
2 votes
3 answers
470 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. ...
0 votes
3 answers
105 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 ...
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5 votes
2 answers
301 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 ...
3 votes
2 answers
117 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 ...
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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 ...
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4 votes
3 answers
136 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. ...
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 ...
6 votes
2 answers
213 views

How can Dracenae Walk if They Have Two Snakes For Legs?

I've already asked a few questions about Lamia on this site $-$ female hybrids of half snake and human (sort of like mermaids) represented in Alendyias, a world of chaos $-$ only to find myself ...
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14 votes
13 answers
4k views

Under what conditions would a society be able to remain undetected in our current world?

So hypothetically, what would be the best "hiding" locations for societies/organizations that seek to avoid contact with the rest of humanity? In other words, where would be the best place (...
2 votes
4 answers
133 views

Could flower heads be a sustainable primary food source for a species of omnivorous lizards?

While they 'technically' aren't lizards, these are very physiologically similar creatures that are pretty small (about the size of a hand) and lead very sedentary lives, mating opportunistically and ...
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1 vote
2 answers
97 views

Could this be a plausible way for unicellular organisms to possess intelligence?

Basically, instead of neurons, the "brain" consists of organelles that can transmit information and thus function like neurons. Of course, this organism is gonna be super huge to contain all ...
3 votes
1 answer
55 views

Genetically variable cells that through natural selection achieves evolution in a single individual

I posted a question some time ago about how could genetic engineering design people that could adapt to changing conditions beyond what simple acclimatization or activation/deactivation of genes in a ...
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1 vote
1 answer
65 views

Irrigating the muscles with lubricant blood so it loses less energy to heat

Having a character that has denser tissues means that heat could be a problem, right? And because I imagine the human body, after millions of years of evolution, already deals with heat through every ...
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1 vote
2 answers
138 views

Feasibility of genetically engineered human "seismolocation"

So, after watching Because Science's video about spider sensory organs that could enable Spider-Mans' Spider-Sense, where it states that if the slit sensila on the spiders exoskeleton joints were ...
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1 vote
2 answers
100 views

Could ferrofluids give humans magnetic properties? (Part 2 of Magnetic Gravity Series)

In my previous question (Could magnetism work in place of gravity for large bases in space?), @JBH brought up that ferrofluids in the diet of people on these stations could keep them magnetically ...
3 votes
1 answer
107 views

Could a creature adjust its height using this system?

So I had an idea for a vaguely humanoid creature called Krah (which I will post more questions about in time), and one of its many horrifying bodily functions is an ability I call “loathsome limbs”. ...
2 votes
2 answers
342 views

How could a species have two sex-determination systems?

I imagined a tetraploid species of teleost. This species has both XY and ZW sex-determination systems. I call this strange thing the VYW sex-determination system. Genetic females have three V ...
1 vote
3 answers
359 views

Does adrenaline have anything to do with explosions?

I've started a fantasy story in which the main character and some others can have access to extremely high adrenaline generation and manipulation. They would have the expected associated powers of ...
-1 votes
1 answer
103 views

What plants could live on an island in perpetual darkness? [duplicate]

In my book, an island resides in an area called the Scourgesea. The Scourgesea is a place with perpetual storms and almost complete darkness because of the perpetual dark thunderstorms. Altavista is a ...
6 votes
2 answers
186 views

Do we have predictive knowledge of gene editing outcomes for heretofore unseen traits?

We can know what genes affect what outcomes by following the trail backwards, but can we predictively know what changes to what genes would result in completely different and previously unseen ...
10 votes
2 answers
212 views

Could a microbe draw in dust using electretic quartz?

The microbes reside in the rings around a gas giant, adhering to cosmic dust and feeding on sunlight and carbon minerals. While it seems there should be enough collisions to keep the microbes in ...
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4 votes
5 answers
983 views

A pseudo-scientific explanation for a brain to allow accelerations of around 50g?

Background: 600-ish years into the future. Humanity finally managed to make Earth uninhabitable and now lives in space. Some humans shed their flesh bodies and are now reduced to brains, their "...
-3 votes
1 answer
95 views

How quickly would a slug with 25% human dna dissolve in salt water? [closed]

Pretty soon i’m going to have to write a slug-human hybrid thats falls more under the slug category dissolving in the ocean. So i’m asking if a slug with about 25-35% human dna would dissolve any ...
7 votes
3 answers
362 views

How Can a Millionaire Care For His Pet Ichthyosaur?

Let's say due to time travel shenanigans, a millionaire has acquired an ichthyosaur: What must our millionaire do to keep his new pet long term? Could it just eat modern fish? Would the salinity be a ...
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3 votes
2 answers
153 views

How would an extremely thigmotropic plant store enough energy?

Clingy Vine eats animals when they come in contact with it by rapidly growing over them and killing them - a bit like a strangler fig. The main problem I’m running into is that it would need loads of ...
6 votes
1 answer
122 views

How much constriction pressure would a naga have?

One thing I don't see discussed often in regards to naga is how much constriction pressure their tails would have. Given their size, I'd imagine it'd be much more pressure than a green anaconda, which ...
4 votes
5 answers
181 views

How can I give someone a lethal disease?

I am writing a story in which one character will kill another character by inducing a life-taking disease like cancer so that it will not be shown as a murder to anyone and it will be a slow death. I ...
2 votes
2 answers
113 views

Could animals/plants survive off of coolant instead of water?

Say there was a source of water that animals and plants alike were surviving in, a sort of desert oasis situation, here we have Fred, he is an animal who lives off of this body of water. Buts let's ...
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6 votes
2 answers
264 views

What would someone look like with golden blood?

Not actual gold, only golden in color. This is entirely for appearance wise only, how would gold-coloured blood look on someone who is very, VERY pale. Not only skin tone, but how would it affect ...
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5 votes
4 answers
733 views

Can my city be full of giant rats?

The rodents of unusual size in question are not implausibly large from a biological standpoint, being roughly the same weight as an American Beaver, but much more adapted for land living and with an ...
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4 votes
3 answers
123 views

Can my bacteria survive?

I'm trying to create a hard sci-fi book where the main character uses biophotovoltaic cells to power electricity, my question is: How can I make my cyanobacteria last at least a year inside an ...
4 votes
2 answers
301 views

Food chain based in geothermal heat?

Underground dwarven (and other) civilizations are a staple of fantasy worlds. The obvious question (what do these people eat?) is rarely answered. As an explanation, I considered a food chain based in ...
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6 votes
2 answers
1k views

Optimal shape for a humidity sensing organ?

Eyes, ears and nostrils are shaped to facilitate their function. So what is the optimal shape for a humidity sensing organ? A paper about fruit flies (link here) explains that the insects are adapted ...
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8 votes
3 answers
184 views

Healing gunshot wounds in microgravity

In my setting, kinetic firearms are the handheld weaponry of choice for most people, despite centuries of technological advancement (and stagnation, somewhat). These range from chemical-propelled guns ...
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