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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How large and tall can a bipedal, upright standing, mostly herbivorous therapod get? [duplicate]

I was originally gonna post this as one question with my previous one, but since these are two different topics I've decided to split them. Previous question: What is the best Foot shape for a Bidepal ...
TheGoldenBoy2188 The Coolest G's user avatar
5 votes
2 answers
419 views

What is the best Foot shape for a Bidepal uprighting standing dinosaur?

I'm working on a idea for a Gojirasaurus/Godzillasaurus species of dinosaur (a fictional dinosaur that was the dinosaur that would eventually become Godzilla due to the effects of radiation.) The ...
TheGoldenBoy2188 The Coolest G's user avatar
-4 votes
1 answer
92 views

Does a deep sea electric ray creature sound plausible?

I was making a species for a school project and would like to know if my idea is plausible. It is kind of barebones though. I was thinking of a deep sea electric ray that uses its tail as a sort of ...
bamaskd's user avatar
3 votes
1 answer
103 views

How would benthic marine organisms like shellfish and crabs adapt to a hypersaline environment? [closed]

In this world of mine, through a mysterious phenomenon called magick(tm) a God made it so all the salt in the world is either in a few location, alpine salt lakes or at the very bottom of the ocean. ...
A Shattered Day's user avatar
3 votes
0 answers
138 views

A world with edible plants only [closed]

Would a world with exclusively human-edible plants despoil the soil? Or is it possible to have an hypothetical world where there is no grass but potatoes and tomatoes, and no pines or oaks but only ...
FringesExplorer's user avatar
13 votes
2 answers
4k views

Elf eye proportions, feasible?

In more modern media, elves are typically depicted as slender humans with pointy ears. However, in some settings like DnD the appearance of the elves is much more distinct from that of regular Human. ...
Seraphim's user avatar
  • 4,905
5 votes
3 answers
3k views

Furries' perks evolutionary possibility

I wanted to create a world inhabited by sapient canine-like Furries, but I asked myself: is it possible in evolutionary and anthropological plans? My main question is about tails and fur. There's a ...
Victor Vincent Volk's user avatar
3 votes
4 answers
328 views

How can human sebum be harvested and how much could you get out of a human?

So, some aliens discover that human skin oil has unique properties that are desirable for them. They cannot synthetically synthesize it for whatever reason. So, to be clear, they really want the stuff....
Alex's user avatar
  • 913
4 votes
2 answers
101 views

Viability of heated plants via fission as a power source

This is something I haven't seen before, so it might not be viable, but still, I'd like to put it out there A biological organism takes in radioactive material, encourages it to undergo fission, the ...
MegatheriumMegafauna's user avatar
12 votes
9 answers
7k views

Is it biologically possible for one species to need another species to reproduce?

I'm writing a speculative story about a planet in another Solar System. On this planet, there are five types of reproduction strategies amongst the sapient species. There are androgenic, gynogenics, ...
Rhymehouse's user avatar
  • 3,563
1 vote
3 answers
319 views

How would humans evolve if they began living underground? [closed]

So I am creating a world where some humans begin to live underground and in caves under mountains but I am struggling a bit with how they might evolve. My problem is that I don't want them to just be ...
LaserChild9's user avatar
4 votes
3 answers
235 views

Bioluminescence due to photosynthesis

I'm wondering about how to make my photosynthesising organisms all glow. Basically, I want to make bioluminescence a consequence of photosynthesis, as if the organelles themselves produce light in the ...
AxobitMelodies's user avatar
4 votes
5 answers
1k views

Is this a realistic evolution for a flatworm-like species?

I have made two simple diagrams, each detailing the difference between two of my genuses (yes this is on purpose); Kuroribranch and Ennapoda. Kuroribranch is extremely similar to an Earth flatworm. ...
AxobitMelodies's user avatar
5 votes
2 answers
188 views

Determining the step size, walking speed, and running speed of a bipedal, digitigrade humanoid species

In determining what units of measurement my fantasy species would have, I've run into the problem of figuring out what length a step would have, how fast their normal gait would be, and how fast they ...
SaintDiabolus's user avatar
8 votes
7 answers
2k views

The science behind an invisible wall of pain

In this concept, a person is confined by a precisely-defined invisible barrier that causes extreme pain when any part of them crosses it. It affects only them, thus the source of the pain must be ...
Gene Terry's user avatar
7 votes
1 answer
302 views

Can two species from the same genus but with a different sex determination system interbreed and have fertile (or at least sub-fertile) offspring?

In my futuristic world, there are two coelacanth species that are the daughter species from the famous West Indian Ocean coelacanth. One has the XY sex determination system (like humans, iguanas, ...
mammifereviolet4694's user avatar
6 votes
2 answers
330 views

Is it possible for a plant to form a biological "greenhouse" to protect its delicate flowers using some sort of clear, insular material?

In my world, I have a type of plant with a two-stage life cycle. The first stage grows into a structure that functions like a greenhouse that allows in most of the Sun's light but insulates against ...
MediocreFantasy's user avatar
2 votes
1 answer
801 views

How to survive a helicopter crash using alien biotechnology?

In the near-future, in a war between aliens and humans, the aliens hatch a plan to seemingly assassinate a human leader (on Earth), but make it look like it was done by other humans. They have it ...
mer-mech's user avatar
-4 votes
1 answer
134 views

How would be society's reactions if scientistis created an hermaphrodite man capable of giving birth? [closed]

If genetic engineered and/or bioengineering was used to create a man with true hermaphroditism( he would also have male gender identity) who could get pregnant on his own by self fertilization or ...
Sabryne Krystal's user avatar
4 votes
2 answers
515 views

Could alkaline digestive system work?

So a human digestive system is generally acidic, especially at the stomach part, when it goes down to even 1.5 pH. Similar things must be happening in other mammals and to an extent, probably in all ...
Yulian's user avatar
  • 462
2 votes
2 answers
240 views

What parts of the human brain can a truth serum modify to prevent lying?

As I mentioned in a previous question, I am writing an alternate history story with many different countries by the time 2023 rolls around. Vitruvia is one such country that runs many experiments and ...
Rhymehouse's user avatar
  • 3,563
10 votes
6 answers
4k views

Feline rider's position: reclining, seated or Prone?

I'm looking at the idea of a large feline as a rideable mount, and I'm running into a question about the rider's posture when riding. Would it be best to have the rider mounted Prone, like on a modern ...
Hugh Ayers's user avatar
7 votes
9 answers
3k views

Can a device that causes memory loss be created with near-modern technology?

I am creating an alternate history world that leads to modern Earth having many different nations & cultures than it has in real life. One country is big on funding many extreme experiments to ...
Rhymehouse's user avatar
  • 3,563
1 vote
0 answers
68 views

How would future humans be able to evolve large heads? [closed]

In my story there are future humans that managed to build a time machine and for research purposes and decided to travel back in time to change past events from taking place. These future humans have ...
Blue Shark's user avatar
5 votes
1 answer
261 views

What Could You Learn From Someone Else's Persperation and Exhalation Using Nanites and Smart Sensors?

Several sources suggest that "smart dust" could be used to make observations about someone's health and the environment around you. Here are some sources that suggest you could make ...
Englishman Bob's user avatar
6 votes
3 answers
2k views

How bullet resistant would a person be who is 80 times more durable than a regular human?

The tensile, shear and compressive strength of all their tissues, including bone, skin, muscle, etc., is multiplied by a factor of 80. They are also very buff and so have a large body volume. How ...
Daniel Mazdak Honar's user avatar
-1 votes
2 answers
214 views

What would different groups of dinosaurs be called if they still lived with humans? [closed]

In my world, dinosaurs live along with humans, so I'm wondering what groups of dinosaurs would be called. I was wanting something unique, but still specific. A pack of velociraptors doesn't sound the ...
Sage Grant's user avatar
1 vote
4 answers
2k views

Can human geniuses be cloned with modern technology?

In my story, there is a private institution called the GenoVate Initiative. The GenoVate Initiative wants to preserve the most exceptional individuals in the human gene pool. People who have ...
Rhymehouse's user avatar
  • 3,563
-2 votes
2 answers
239 views

Medieval Europe without animals [closed]

I'm working on a setting that in some ways looks like medieval Europe without domestic, or in general agriculturally significant, animals, and I'm trying to figure out what the implications would be. ...
rwallace's user avatar
  • 4,907
0 votes
2 answers
122 views

How could my organism lose most of its water?

I'm writing a short hard-science story about an organism that loses most of its water much like tardigrades before entering dormancy but this organism is the size of a cat, how could I explain this ...
Z Z's user avatar
  • 65
5 votes
2 answers
270 views

How much weight could a sauropod carry or pull?

I can find many sources for mass, but none saying how much any sauropod could carry or pull. Is there a formula for this stuff? Does anyone have a general idea? I want like a range that they could ...
Sage Grant's user avatar
-4 votes
2 answers
148 views

What are some evolutionary bugs in the human genome that could be ironed out by a god that is essentially intelligent evolution? [closed]

In my setting, humanity's gods are real and benevolent, but not omnipotent. They did not create the human species, but rather showed up early in its evolutionary history (equivalent of 300 kya in our ...
MarkKaiya's user avatar
8 votes
6 answers
4k views

How are custom organs controlled by the brain?

In various sci fi settings you'll often see soldiers that have been modified beyond their baseline human level. Sometimes they are genetically grown this way, but other times they're modified as ...
FIRES_ICE's user avatar
  • 3,153
1 vote
2 answers
140 views

Could Aluminum-Based Placoderm-like Tooth Structure Break a Human Skull?

I have a monster in mind, but a major part of its introduction to the story is that I want to have it bite a human soldier's skull clean off. Its teeth are similar in structure to a Placoderm's, but ...
TheDarkeLordeReturns's user avatar
2 votes
3 answers
203 views

Could a planet 2 times the mass of earth have floating organisms in its skies

Can a planet 2 times the mass of earth have floating animals in its skys? I watched the netflix documentary series ailen world's and one of the exoplanets atlas was high gravity but was very dense so ...
Jerry Robinson's user avatar
6 votes
2 answers
390 views

Possible reactions for Artillery Plants?

I am looking for a chemical reaction which can generate a lot of Gas in a short period of time, on the order of seconds, to build up pressure and allow a plant to propel a seed like projectile. The ...
ErikHall's user avatar
  • 2,456
3 votes
2 answers
587 views

Precocial offspring in an obligate carnivore + ambush predator species

So, for an obligate carnivore + ambush predator species, what could necessitate their babies being born precocial? IRL, big cats' babies are fairly altricial, but I need a reason for them to be the ...
Lunar A. P.'s user avatar
2 votes
1 answer
225 views

How large could a tree theoretically become if its trunk and branches were (heavily) pneumatized?

This question is in relation to speculative biology/evolution: A genre of science fiction and hypothetical branch of science which seeks to explore "what if" questions about life using ...
LordMalecith's user avatar
16 votes
3 answers
4k views

How plausible might planimals be, and what would they be like?

This question is in relation to speculative biology/evolution: A genre of science fiction and hypothetical branch of science which seeks to explore "what if" questions about life using ...
LordMalecith's user avatar
1 vote
0 answers
35 views

Explosive Plant/Chemotrophs [duplicate]

I'm looking for an autotroph that produces an explosive compound for either reproductive or defensive purposes that an intellegent alien could harvest and domesticate for the purposes of producing ...
Evangel's user avatar
  • 11
6 votes
3 answers
447 views

Animals with fur that fluoresces under UV, and a star with high UV levels--how dramatic is the affect, and how badly would it mess up camouflage?

I am considering the possibility of giving the creatures on my planet fur with UV-florescent pigments as an extra defense against the high levels of UV radiation from their star, an F3.5V This planet ...
Lynx's user avatar
  • 63
0 votes
3 answers
129 views

What tissue / organ is most vulnerable to an attack from nanites? [closed]

What tissue / organ is the most vulnerable to an attack by nanites? Assume the nanites are very primitive -- something would could conceptualize today. Assume the nanites can communicate via the ...
Englishman Bob's user avatar
2 votes
1 answer
282 views

Can 'prions' help me avoid a genetic engineering temporal paradox?

On the world of Ruquelis, the horrific practise of cannibalism stands on three legs, however, this question is concerned only with Leg #1: Genetics. In How to have 'easy' sexual morphs in ...
Monty Wild's user avatar
  • 60.3k
2 votes
2 answers
158 views

What kind of physique would a Voswuinian Mastiff need to fight a Voswuinian Liguar in the way described?

Before I start, I want to say that this is not a repeat of my previous question. It’s merely a continuation of the topic, with updates to the nature of both fictional animals involved, with a more ...
Godzilla Louise's user avatar
-5 votes
3 answers
171 views

How would burn-proof people react to enflamed alcohol?

The Ardeites are a group of humans who are wholly immune to being injured by heat and flame. Furthermore, they cannot feel pain. All other features (including instinctive reactions to extreme ...
Ichthys King's user avatar
5 votes
5 answers
2k views

How big would a dog like the one described need to be to survive an attack by the big cat I’ve described?

The Voswuinian Mastiff has a similar build to the English Mastiff. It was bred to protect livestock from predators such as the Voswuinian Liguar. The Liguar has the overall build and musculature of a ...
Godzilla Louise's user avatar
9 votes
3 answers
2k views

Will my Hydra sink into the bog?

Hydras in my world are much like a brontosaurus in form, but has three heads. Much like a hippo, hydras have incredibly dense bones, and sink rapidly in water. Hydras are almost exclusively swamp ...
Kraken Writhing's user avatar
0 votes
0 answers
42 views

Can nature adapt to life without constant access to sunlight? [duplicate]

I create a world where the sun's rays no longer reach the planet, due to the clouds completely covering the sky. Nature must therefore adapt to life without constant access to photosynthesis. I haven'...
batatich's user avatar
0 votes
0 answers
93 views

Can there be habitable moons despite heavy changes in axial tilt of their mother body?

Ok so i created a gas giant with 10 Jupiter masses and like 9 moons between 0.8 and 1.5 earth masses. All exept the most distanced of those moons are tidally locked to the gas giant and their axial ...
Zadai.Fehbiab's user avatar
6 votes
1 answer
3k views

How do human girls who are sterilised at age 9 develop as they mature?

On the world of Ruquelis, there are three genders, men, women, and lilim who are a female sex, with wings and clawed feet. Because of the genetics of this situation, lilim are less fertile and can ...
Monty Wild's user avatar
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