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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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4 answers
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How to make a place windy

I am trying to build a world where there is different terrains and one of them is a extremely windy plain or valley (almost uninhibitedly) there is a couple plants and animals that have adapted (I don'...
The god of arch's user avatar
0 votes
0 answers
72 views

Tail/appendages [closed]

My character is an angel and has a tail that has for reasons been cut off then actually dug at with a blade to try and prevent regrowth (slow regeneration abilities to certain extents) If the tail had ...
Gabriel Stone's user avatar
4 votes
2 answers
156 views

Could a creature "image" its environment through chemoreception?

Most organisms that can “see”, or create an image their surroundings, use either photoreception (sight) or mechanoreception (sound, in the form of echolocation). I am considering a fantasy race that ...
user98816's user avatar
  • 8,657
6 votes
1 answer
190 views

Can Kleptothermy work underwater?

I am working on a concept with amphibian larvae surviving in very cold polar waters. Kleptothermy seems to work with ectothermic organisms (like Snakes and Bees) but I can't find any organism that ...
MolotovJack's user avatar
0 votes
0 answers
74 views

Supercooled Cryostasis in Space [closed]

If a human is damaged from ice crystals when frozen, then why not put the body under enough pressure to be in a supercooled state for cryostasis? Further more pooling of blood in the body would be a ...
Justintimeforfun's user avatar
3 votes
7 answers
746 views

What advantages would horns present in humans? [closed]

In my canon, an advanced civilization exists that has a pre-established penchant for extensive bodily modification. While their extra thumb and tail are indeed useful for additional dexterity and ...
FrossD's user avatar
  • 259
19 votes
5 answers
6k views

Is the average person capable of adapting to a lower oxygen content in the air than earth, given enough time to slowly acclimate?

The concept of my world rests essentially on voluntary migration of populations to other planets either for colonization or relocation. If the desired destination planet had significantly lower oxygen ...
baromako's user avatar
  • 193
15 votes
8 answers
3k views

How can a bloodline be rare without completely dying out?

This is an urban fantasy setting in which all manner of fantastical species of humanoid, called monsters, exist under humanity's nose, and in this setting there is a system of magical bloodlines ...
Cyrus Drake's user avatar
  • 8,165
14 votes
6 answers
3k views

Is Tasting and Smelling Bad A Viable Way of Not Getting Eaten? [closed]

Would it be possible for humans to use some combination of soap, lotion, perfume/cologne, etc to deter most predators from eating you by virtue of your smell and taste? After all plenty of other ...
Vakus Drake's user avatar
  • 2,803
-1 votes
1 answer
107 views

How could life possibly evolve to the extreme conditions of the day side of a tidally locked Earth? [closed]

I'm currently brainstorming on a post-apocalyptic Earth. I initially thought of a massive asteroid collision event that drastically slowed down Earth's rotation to be around 1 Earth day = 1 Earth year ...
CoolGuyBros's user avatar
2 votes
0 answers
58 views

RE: Built In Terrariums [closed]

Back again! Hi, I've decided to add context to this question and my previous oneby providing how I'd think the environment would work, as well as the relationship between the host and terrarium ...
Caliban's user avatar
  • 57
1 vote
5 answers
182 views

Could a Creature Evolve to have a BUILT IN terrarium/nursery [closed]

In my world there is a species (who's name Im still working on) but this species has a built in nursery or terrarium. This "Terrarium' is found in the stomach where you can actively see the ...
Caliban's user avatar
  • 57
0 votes
0 answers
36 views

Can the hemoglobin be fed something besides iron to make blood a different color? [duplicate]

A bit of context here. A species of Fairies in my world have silver-colored blood, and while researching for that, I learned that hemoglobins essentially require blood to be red because they need iron ...
Nightmare's user avatar
  • 163
32 votes
3 answers
5k views

Could ghosts be an airborne species of octopus?

In my story there’s a character named Zane who finds out that he attracts “ghosts”. It’s only when he sees them that he realizes that they’re not supernatural beings, but floating octopuses that can ...
Allex Bail's user avatar
2 votes
2 answers
121 views

What is the optimal number of fins for maximum maneuverability of an aquatic organism?

I am deciding how many fins to give a race of aquatic "humanoids" for maximum maneuverability in the water. It is a given that they would have tail and pectoral fins because they have very ...
user1181399's user avatar
6 votes
5 answers
2k views

Evolution of predatory elves

One concept I've toying with for a while is the idea that elves are a species of Homo that have adapted to a more predatory life style. With the idea that their agility and strength is derived from ...
Seraphim's user avatar
  • 4,971
3 votes
1 answer
165 views

Is my concept for Writhing Ones viable? [closed]

My idea for an ent-like species is as follows. The Writhing Ones are a race of giant eusocial nematodes. They evolved to collaborate for the benefit of the collective and over time, colonies grew into ...
Segg Gway's user avatar
  • 113
3 votes
4 answers
237 views

Would gender segregation of bathrooms, locker rooms, and prisons make sense with a limited mating season? [closed]

In my world, the main sapient species are Naledis. Naledis are similar to humans, but they are smaller and have cartoon-like features. Another large difference is that Homo Naledis have a mating ...
Rhymehouse's user avatar
  • 3,679
1 vote
3 answers
196 views

How can decades-long ageless sleep work without either warping time or allowing biological immortality?

I am working on a setting with interstellar travel but no faster-than-light travel; since generation ships require almost perfect recycling technology and are unlikely to be socially and culturally ...
Choroflorocarbon's user avatar
2 votes
1 answer
103 views

How does a bipedal amphibian use its legs in water?

Ok so I'm writing a story with humanoid animals that developed in water but adapted to instead live near large bodies of water like lakes. They have legs and arms as well as a tail (About 5'8feet (...
something_Funny368's user avatar
14 votes
16 answers
3k views

Evolutionary advantage of a venom compound that makes pain pleasurable

On the world of Ruquelis, the combination of reincarnation and the drug Hialutabu allows the inhabitants to do some truly awful things to each-other and justify it to themselves as good. Hialutabu is ...
Monty Wild's user avatar
  • 62.1k
4 votes
2 answers
208 views

Living under a permanent dark

This is the 3. Part of a series of questions. In which I asked how a permanent dark sky would effect flora and fauna. Unlike the other two this question is not going to focus on nature. Rather how ...
Fallenspacerock's user avatar
5 votes
3 answers
212 views

True living fossils?

Could there be a living creature that is so old that part of it has fossilized? Here are some criteria I have for the thing to be described as a fossil: It has to be over 10,000 years old. A portion ...
Nitrogen-8's user avatar
10 votes
4 answers
1k views

Would civilized bloodsuckers slaughter livestock or bloodlet them?

My story has a species of civilized creatures who feed singularly on blood. They can harvest it from livestock (likely cattle) and keep it stocked (they don’t need to drink directly from the animal). ...
Mark Price's user avatar
  • 2,438
1 vote
0 answers
134 views

How would cybernetic implants be integrated into the human body to work in a plausibly or semi plausible way? [closed]

I am interested in writing a sci-fi cyberpunk story set in circa 2030 CE. Background In my story, a company specializes in "cybernetic surgery", adding cybernetic implants to humans, like ...
user110409's user avatar
2 votes
1 answer
175 views

book lungs on a human?

I want my character (a human spider hybrid) to have book lungs along with human lungs, would there be any glaring disadvantages to this, would they be fragile be sensitive to smells? .
spiderwriter's user avatar
9 votes
4 answers
2k views

Are humanoid cetaceans evolutionarily possible?

Dolphins are intelligent and live in groups. In my world, there is a magical way to cook food that would be possible underwater. Given that increased calorie availability, could cetaceans evolve a ...
Snorka's user avatar
  • 438
4 votes
1 answer
108 views

What would be the most effective way for a humanoid species made of stone to generate energy to move around?

This is my first post on here, I've looked over all the tour and the help center things, so I hope this is formatted correctly.I've been working on a high fantasy world that includes a lot of the ...
riznow's user avatar
  • 43
2 votes
2 answers
53 views

Surface Hot-springs on an Icy moon

Would it be possible that on an ice moon like Europa, except more massive, that large volcanoes/thermal vents would be able to reach the surface and create hot springs for life to survive around on ...
MrUnavailable's user avatar
3 votes
4 answers
605 views

multiple retinas in one eye

is it possible to have multiple retinas, would there be advantages to this? Or would it just not work at all? I have a diagram (a shitty one) and more explanation if needed Edit: sorry for the ...
spiderwriter's user avatar
14 votes
13 answers
3k views

Why would dragons evolve to breathe fire?

Assuming dragons exist today on earth, and are four-legged, with wings, and cold blooded reptiles, what evolutionary purpose would there be in being able to breathe fire? This question is ignoring how ...
bruithel's user avatar
  • 351
7 votes
3 answers
1k views

Could variation of the universal constants affect computation?

One of the obstacles to realistic - yet interesting - space battles is that of effective computation. If all trajectories and whatnot can be computed much faster than a human could follow, it leaves ...
Spitemaster's user avatar
5 votes
2 answers
114 views

How do these "mind-reading" microbes collaboratively compute as fast as neurons?

For some time now I've been trying at a plausible sort of "translation (or some other brain-affecting) microbe" concept. The main idea I'm basing this upon is of biofilms that could ...
inkwell87's user avatar
  • 941
3 votes
1 answer
126 views

Gene-smiths creating super warriors. They need a secondary digestive system with a new super food

Got a faction that's making super warriors. The gene-smiths of my story managed to biologically engineer a far better human body. That's easy. This includes a far more developed digestive system, ...
Seallussus's user avatar
  • 8,340
3 votes
2 answers
174 views

Would a bioengineered man with Aromatase excess Syndrome naturally accept that he looks naturally feminine? [closed]

I was searching about Aromatase Excess Syndrome and I read some case studies about it and I was imagining if bioengineering/Synthetic Biology was used to create a man with such a condition( not ...
Sabryne Krystal's user avatar
2 votes
0 answers
90 views

Balancing demographic effects of different reproductive strategies [closed]

I am building a world with two sapient species, one of which is effectively equivalent to humans, and another one which has a series of differences. I would like to know how to tweak the numerical ...
vicky_molokh's user avatar
  • 1,811
1 vote
0 answers
65 views

Could an organism breathe SO2 (Sulfur Dioxide) and reuse the sulfur atom for bones made of S8 (Octasulfur) and AlO3 (Aluminium Oxide)?

Problem Background I want animals on my fictional planet to use 6 SO2 (Sulfur Dioxide) instead of 6 O2 (Oxygen) to react with C6H12O6 (Glucose), to make 6 CO2 (Carbon Dioxide), ATP, 6 H2O (Water), and ...
PeanutbutterCat's user avatar
4 votes
3 answers
295 views

How would a toxic halophilic bacteria (vibrio vulnificus) mutate and make all coastlines uninhabitable?

I am writing a speculative fictional story set in the future, where the bacteria Vibrio vulnificus mutates and makes life so dangerous for humans along the coast that everyone has to retreat into the ...
Rachel Cox's user avatar
14 votes
9 answers
4k views

Will it be possible to prevent cancer by introducing ECC on genome?

Could it be possible to drastically improve DNA repair capabilities by introducing error-correcting codes into the human genome? Would it be feasible to reduce the probability of cancer while slightly ...
Tentacles3587's user avatar
15 votes
5 answers
6k views

Life on a planet with never-ending rain

I'm intrigued by the notion of life on a planet where rain is a constant presence. Imagine a world where precipitation never ceases, where the skies are perpetually gray, and the sound of raindrops ...
Alessar's user avatar
  • 521
2 votes
4 answers
149 views

observable consequences of perfect healing

What are the Consequences of Perfect Healing? Or stated another way, what short-to-mid term observable consequences would there be after altering a human being to be in a perfect state of health, ...
A_K_M's user avatar
  • 101
3 votes
3 answers
164 views

A Better Genetic Polymer?

This is a long one. (TLDR at the bottom) The prospect of alternative genetic polymers has attracted the interest of people for almost as long as we have known about DNA. Indeed, many alternative ...
Baron_vonCernogratz's user avatar
1 vote
3 answers
193 views

What injuries can leave permanent damage while allowing someone to move freely/fight?

I want to have a character who used to be the captain of/personal guard for a queen but has to retire due to an injury but I can't find any injury that would leave permenant damage without leaving ...
sempiterne's user avatar
5 votes
2 answers
190 views

Feasibility of cold-blooded Livestock

The research I have done recently (searching through Wikipedia) has yielded that generally cold-blooded animals (Ectotherms) are able to survive on less food that their warm-blooded counterparts, and ...
Rhomaioi's user avatar
  • 1,349
10 votes
2 answers
3k views

Edible Dinosaur meat

What would it take to have edible non-therapod dinosaur meat in a world where humans and dinosaurs have coexist since human civilization? Or would the human body or creativity find a way to eat ...
Sage Grant's user avatar
0 votes
1 answer
112 views

Designing the best Meat livestock [closed]

I have been wondering what would be the best animal to produce meat, excluding insects and artificial meat. The following questions are meant to provide ideas: Would it be better for it to be an ...
Rhomaioi's user avatar
  • 1,349
1 vote
5 answers
505 views

Is extremely rapid evolution plausible?

In my world, set some time less than 100 years in the future, there have been changes in climate in many places due to global warming. Also, some organisms of extraterrestrial origin got loose and ...
Batperson's user avatar
  • 421
7 votes
6 answers
1k views

Labour-Intensive staple crop

I am trying to design a staple crop (preferably grain or tuber, but can be anything if necessary) that is very productive, capable of sustaining great population densities, but is also very labour ...
Rhomaioi's user avatar
  • 1,349
8 votes
2 answers
264 views

Alternative methods of blood circulation?

So, I've got a parasite, which adapts and grows to keep its (human) host alive. One of the hosts in question has lost their heart, and since the parasite itself, taking the form of vine-like ...
arda_aaa's user avatar
1 vote
2 answers
131 views

How does a wing membrane from shoulder to knee affect the clothing of a humanoid?

This species called Artisans has a second shoulder on the lower half of the ribcage which extends into a pterosaur-like wing, and a membrane that goes from the wing shoulder down to about the knee. I ...
Nightmare's user avatar
  • 163

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