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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).

8
votes
6answers
683 views

An animal that is physically separated into multiple parts

One of my fictional planets (which is largely terran in nature) is notable for an unique animal. Said animal is a dangerous predator that is notable for several things: It is physically separated ...
7
votes
4answers
201 views

How is infra-vision any good?

Supposing a world like the Underdark, full of civilizations that developed and live their lives completely away from the light of the sun. In the typical D&D type setting, these creatures have ...
14
votes
9answers
5k views

How can I prevent a human sacrifice from dying before a ritual is complete?

This setting takes place with medieval level technolpgy. Upon death, all souls leave the body and go directly to God to become one with its consciousness. However, there are other competing gods who ...
0
votes
0answers
33 views

How would decreased planet density affect the development of life? [on hold]

Some approximate statistics for said planet. Radius: 9575.0 km (1.503 Earth Radii) Density: 3.668 g/cm² Therefore, the planet would have a surface gravity of around 9.82 m/s², which is very similar to ...
34
votes
21answers
9k views

Make slimes great again, but how?

Slimes are seen as merely base-level enemies which don't really challenge the heroic main character, the Chosen One. My question is how to make slimes incredibly powerful without using magic. They ...
1
vote
0answers
93 views

Does the body keep growing or maturing in any way past adulthood? [on hold]

(Edited for clarification) The general popular conception of how aging works is that your body grows and develops, reaching completion at some point in your late twenties or early thirties, and then ...
14
votes
14answers
7k views

How would aliens test humans for empathy?

500,000 people have been kidnapped from all over the world by aliens. The aliens want to see if humans have empathy, and they can't understand our languages, as we speak they hear just random noises ...
-1
votes
1answer
72 views

Horns on humans [duplicate]

I know this has already been asked but I did not quite understand the science of it. Say a mutation after birth leads to a person evolving horns. Could this trait get carried along genetically or is ...
-1
votes
2answers
77 views

How can you safely extend childbearing age if menopause isn't a factor?

The chance of conceiving quickly does depend on a woman's age. Women are most fertile between the ages of 20 and 24. The average person is born with around 300,000 eggs and steadily loses them as she ...
4
votes
1answer
307 views

How could a species have naturally developed metalic looking hair?

The key idea in the concept of metallic hair color is the word “metal.” Metal is shiny. Metal is iridescent. Metals come in a range of finishes from warm gold to icy silver. Metallic hair colors, at ...
4
votes
6answers
98 views

Extremely heterogeneous life

All life on Earth is surprisingly homogeneous from a biochemical point of view. Every organism known to us is primarily built with carbon-based molecules that also contain hydrogen and oxygen, mainly ...
3
votes
2answers
71 views

How strong is a centaur's upper half?

I know I won't be able to get a solid answer and I could always just change this detail depending on the setting etc., but in a realistic scenario, I have no idea if they'd be significantly stronger ...
5
votes
2answers
76 views

How do I tune the incidence of gene expression in my fictitious population?

Related questions How can I make a net beneficial genetic trait occur only in a small fraction of the population, sustained? What percentage of the population has the “magic gene”? Premise When ...
10
votes
3answers
470 views

Is it plausible to make human gametes from different parent chromosomes?

I'm creating a near future world where laboratories could create human gametes (sperm & ova) using chromosomes from different people. So theoretically we could take 1st chromosome from a 1st ...
3
votes
3answers
111 views

How to develop ecosystem in science based way? [closed]

I want to create artificial ecosystem. I don't want to do it in random way like "We have cats but lets name them kads. They live in forest... of mushrooms. And there is a river. I think it is enough....
5
votes
7answers
2k views

How can testes be housed in the body without damaging sperm?

The testicle or testis is the male reproductive gland in all animals, including you humans. It is homologous to the female ovary. The functions of the testes are to produce both sperm and androgens, ...
5
votes
2answers
133 views

Growing a third arm

Since having (eg.) two arms is a result of evolution, how can we, considering modern technology, force embryos to grow another limb? Polymelia is known to me, but it is considered a birth defect. I ...
4
votes
5answers
365 views

How could a person survive and then stay alive, even when they are actively decayed?

So, in my world, a scientist (tries to) invents a machine that will recode your cells in a very particular way, making you immortal. He tests it out on a 13 year old male. It goes....extremely wrong. ...
4
votes
2answers
99 views

Can Mollusks Develop Bone Independently?

When one thinks of a shelled cephalopod, odds are high that the first thing to come to mind are the ammonites. They were one of evolution's success stories, thriving from 400 to 66 million years ago. ...
13
votes
14answers
2k views

Potential causes for generational deafness in space colony

I'm working on a sci fi story which heavily integrates themes of varying alien configurations and how they shape society, culture and language. As part of this theme, I want to have some of the human ...
-4
votes
2answers
168 views

How can I extract pure dopamine from the body?

Through scientific shennaganins, it has been discovered that humans are the best source of producing dopamine. By injecting them with a certain manufactory substance, the body creates a high return of ...
3
votes
1answer
154 views

What would a dragon with a prehensile tail look like?

I have a human-like dragon that can hang upside down from trees by its tail and without the aid of its other limbs. What I am struggling with is how the scales on its tail have to be arranged to allow ...
31
votes
7answers
6k views

How can sharks be domesticated to become man's best friend?

I have had an ingenious idea of combining the two most dangerous creatures the world has ever seen by using my massive and titanic intellect. Mankind, the deadliest land mammal, and sharks, the most ...
1
vote
2answers
274 views

How to remove the limit? [closed]

Most role playing games have an upper limit to how strong a character can become usually by means of a level limit or item power limit, players simply reach a point where no matter what they do they ...
6
votes
5answers
3k views

Arms without wrists

The human hand can be flexed at the wrist, extended and even abducted or adducted while the forearm can also be twisted in supination or pronation giving the illusion of the wrist twisting. All of ...
0
votes
1answer
129 views

Life in a gas torus around a neutron star

Larry Niven wrote a novel called The Integral Trees, which was followed by a sequel The Smoke Ring. This is Wikipedia's synopsis of the setting: The story occurs around the fictional neutron star ...
4
votes
2answers
101 views

How can a tree be used to conduct electricity?

A network is classified as two or more connected devices that share information. In this world, the inhabitants use a system of trees that operate similarly to super-computers. These trees collect and ...
2
votes
5answers
185 views

What adaptations would make humans better climbers?

In this new fantasy setting I'm building, then after getting the tectonic plates and their movements covered, I've found that the land would be very mountainous, plus numerous valleys, and the islands ...
15
votes
2answers
3k views

Elves have alcoholic blood

From further investigations I see that someone came with an idea that gives support to my theory that elves don't have body fat. Their idea was that Elves store their energy as ethanol in their ...
4
votes
8answers
2k views

In an animal without lips to moisturize the teeth, what would be the best structure for the teeth to be made out of?

Our teeth are prone to fractures when dry due to their crystalline internal structure. Because of this, a majority of terrestrial animals with a similar tooth makeup have lips to keep the teeth moist. ...
4
votes
1answer
210 views

How could genital dentata syndrome develop as a real condition among humans?

There exists in folklore from various cultures of a condition in which rows of teeth are present in the female genitalia. The purpose of these stories, like most folktales, was to serve as a morality ...
44
votes
15answers
12k views

How could elves survive without any fat cell in their body?

Have you ever seen a fat Elf? I haven't, and I think there's an unexpected reason. You see, Elves aren't really the best workers or at least working the land and cultivating food is not something ...
1
vote
0answers
50 views

describing the brainwaves of a comatose patient [closed]

I'm not sure if this is an appropriate place to ask this question. I have asked a writers group as well for more of the actually writing style side, but hoping for your feedback on the technical ...
32
votes
12answers
8k views

Why isn't my superhuman always hungry?

I'm writing a speculative fiction story that includes superhumans. The focus is on individual characters and their daily lives, and I'm trying to maintain some consistency by not throwing all the laws ...
10
votes
6answers
1k views

Fantasy and the germ theory

When developing a medival fantasy realm, especially one with no known healing and restoration magic, one may need to develop the people's understanding of science and medicine. A unique example of ...
3
votes
3answers
374 views

Magical prosthesis merchant [closed]

As a prosthesis crafter things are going really bad with the new trend of healers regrowing wounded limbs. Apparently for some sick reason people actually prefer their body parts to be made of real ...
4
votes
2answers
835 views

Turning into a puddle of blood [closed]

Vampires have that weird innate skill of being able to turn into a blood puddle and then morph back into a vampire. This is an evolved characteristic all vampires share. The Arcanists and scholars ...
2
votes
4answers
168 views

The pros and cons of thermokinesis

I am currently working on a magic system that involves Thermokinesis, which is the ability to manipulate temperature. This power involves controlling the rate of movement of molecules, which is ...
0
votes
2answers
290 views

Fantastic nervous systems and what powers them [closed]

Nearly all living creatures on this planet have one form or another of a nervous system that transmits sensory data to the creature's brain. What's really interesting to me is that this data is ...
5
votes
3answers
219 views

Making a Plague Worse?

Starting in 541–542 AD, the Plague of Justinian and a series of subsequent outbreaks killed between 13-26% of the world's population. The plagues were caused by Yersinia pestis, the same microorganism ...
20
votes
3answers
3k views

Could giant snakes be ridden by people?

I am a writer trying to build a fantasy realm relatively similar to our world. The only difference between this world and ours was that every creature and animal was significantly larger, potentially ...
8
votes
6answers
3k views

Would a society with two different species that can interbreed be viable?

One species has two genders, like humans, the other has three(essentially male, female, and one without breeding capabilities that first appears as a genetic quirk but quickly becomes more prominent ...
7
votes
3answers
202 views

On the viability of living balloons

This is not a question on whether or not floating, balloon-like organisms are biomechanically viable - I already know the answer to that, which is yes. This instead deals with the plausibility of such ...
3
votes
4answers
2k views

How can I use the demonic corpses to create my army? [closed]

My name is Grimdarkus Prime, and I am a madman. I have dreams of world conquest and plan to build an army made up of demonic soldiers that are stronger and faster than regular humans. To do this, I ...
0
votes
5answers
186 views

How to house and conceal an AI-level intelligence in a human body? [closed]

How would you take a human body - consider it baseline for these purposes - and make it able to house, power and regulate the temperature of hardware capable of sustaining an artificial intelligence ...
5
votes
6answers
450 views

How to prevent large groups of animals from destroying my land? [closed]

I've created a world that is filled with beings and creatures that are very specific that can be easily separated and recognized. In this world there are seven (7) basic types of lifeforms (not ...
8
votes
2answers
1k views

Climbing up on running water

I remember playing this game back in 2010-2011, and In minecraft if you found a waterfall you could actually swim it up vertically, it was difficult but possible. Does this apply to real life to, ...
3
votes
4answers
115 views

How could an AI be in the real world organically and humanely (not in a robotic body)? [closed]

Say I have some artificial intelligence characters in a virtual reality world that my human characters have bonded with in ways of friendship, romance, etc before they find out they're AI. How would ...
3
votes
6answers
188 views

How could physical fitness and arcane magic be linked to each other if they operate differently?

Souls are made of chakra, which is the life force of all things. People are born with different levels of chakra that remain the same throughout life. Shamanism is a form of magic that uses your ...
3
votes
1answer
140 views

History without resource driven wars

Usually when a population overgrows it expands in search of new land and if the fields are virgin and empty they become farmland and cities, but if the fields are already occupied and the resources ...