Questions tagged [humans]

For questions about humans as we know them or slightly changed, their physiology, psychology, politics, society and goals.

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0answers
38 views

Graphs for understanding population dynamics - where to find?

I'm trying to figure out a world in my story (eg. whether dialects of a language would be mutually intelligible, how often would designer babies be born compared to 'usual' babies, usual family ...
4
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1answer
163 views

How long would it take for all evidence of humanity to be erased from Earth?

Suppose that due to nuclear warfare or some deadly disease, the entire human population of earth died off in the near future. All humans gone, but most of life survived, including domesticated animals....
3
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1answer
119 views

How Developed Would Baby Mwindo Be?

In real life, humans get pregnant for only nine months. Once born, the baby has a long way to go before it can stand, walk and talk. But don't tell that to Mwindo! The African saga of the hero ...
4
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6answers
415 views

What sort of psychological changes could be made to a genetically engineered human

I'm in the rough outlining stages of this story, and found myself a bit stuck trying to turn this particular corner. Firstly, here are the basics of this world: In the future, it's a common ...
8
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4answers
292 views

How would a 4th trimester affect human development?

Newborn humans are born in a very undeveloped stage compared to other mammals. This is because if they stayed any longer in the mother, their head would become too big to fit through the birth canal. ...
46
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30answers
7k views

What is my malfunctioning AI harvesting from humans?

The scenario described below is for a role-playing game. The setting is Earth-like but with a healthy dose of sci-fi. Even though the setting is sci-fi I would prefer answers be largely based in real ...
14
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5answers
3k views

What is the minimum required technology to reanimate someone who has been cryogenically frozen?

As part of the story I am writing, an individual has been frozen with relatively crude cryogenic technology, then preserved as well as possible. Given the constraints of biology, what would waking ...
126
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18answers
80k views

What is the minimum human population necessary for a sustainable colony?

How many humans are needed in order to sustain and grow a steady population in a habitable area? Assume resources are adequate and the environment is favorable. To further refine this question, let'...
8
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7answers
395 views

Where to Put Self-Reliant, Rugged Individualists?

In fiction that tries to provide a wide diversity of cultural stances on the collectivism-individualism stances, there is often a trope that self-reliant, no-nonsense, rugged individualists (as a ...
5
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2answers
201 views

Humanity with the Ears of a Fox--What Differs as a Result?

In this question, we're looking at a humanity that has adapted one of the most conspicuous ways of keeping cool--larger ears. Desert animals usually have larger ears to have more room for blood ...
22
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9answers
3k views

How to check what is edible on an alien world? [duplicate]

You've landed on another planet. There are some forms of plants and animals on this world but how do you know what is safe to eat? Obviously we went through this on earth, finding the right berries ...
3
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5answers
180 views

How can royal families preserve the nobility of their bloodlines if children can be mass produced?

A powerful empire rules this world, which is divided into several sections. Each section is ruled and governed by various noble families, under the rule of the royal family led by the king and queen. ...
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2answers
280 views

How can you eliminate dreaming without affecting REM sleep?

The Dreamlands are a vast, alternate dimension that can only be entered via dreams. They are divided up into several sections, all of which are inhabited by monsters who serve the idiot elder god ...
5
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7answers
3k views

Humans returning to tribalism

I'm working on setting in which a prison ship crashes on an unexplored/unknown planet, and due to infighting and environmental factors the prisoners return to tribalism at best or feral animals at ...
9
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6answers
2k views

How to hide your own body? [closed]

It's the perfect locked-room mystery: the police find the victim murdered, but the room is locked from the inside. How did the killer escape? He didn't. After committing the murder, the killer ...
2
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2answers
216 views

In a stable medieval fantasy population, what should be the yearly birth rate per 1,000 people? [closed]

For a human or human-like stable, small settlement population, living in medieval fantasy, how many yearly births per 1,000 inhabitants are expected? Assuming: There is no major epidemic. There are ...
9
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15answers
3k views

What could make large expeditions ineffective for exploring territory full of dangers and valuable resources? [closed]

Some sort of cataclysm suddenly creates a territory full of deadly monsters and other dangers, but also valuable resources. Trivial example: a magic volcano suddenly erupts and the mountain is now ...
18
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5answers
2k views

Bone Decomposition

I'm writing a story taking place in the semi-recent aftermath of a period of Human-Dragon warfare. The main character falls into a pit used during this period by dragons to trap/store/dump prey (...
8
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1answer
199 views

Can a person who gained immunity to a disease become an infectious carrier?

If a person is sent out of their hermetically sealed community and in the process becomes immune to a deadly disease. When the person returns will the immunity make them a carrier and infect/kill all ...
30
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15answers
7k views

How old do surviving children need to be to keep human civilization from failing?

This question is inspired by several similar questions on this site. The scenario: at one moment, all people above the age X disappear without a trace. How low this X can be that human civilization ...
6
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3answers
248 views

Is it possible for thermophilic viruses to infect humans?

I'm writing a short story that focuses on an area with high thermophile activity, like a hot spring. There are known thermophile viruses, but thermophiles aren't able to transmit these to humans ...
4
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3answers
179 views

How can monsters affect traditional fantasy worldbuilding? [closed]

I just watched this video from Shadiversity about implications of monsters and magic in a fantasy setting. Ha said a lot about how society could be, but it makes me think: how can the society "...
5
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3answers
300 views

What would humans look like if their blood were silver?

I have a species in mind that I want to write about for a book I'm planning, and they look exactly like humans (minus the 'unnatural' hair and eye colors they can posses). However, they have silver ...
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5answers
173 views

In a future post-scarcity civilization, how would evolution change humans when survival is longer a challenge? [closed]

Let's imagine a post-scarcity society where everyone has unlimited access to food, energy and the aging problem has been solved so people are practically immortal. Now my understanding is that, our ...
3
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2answers
187 views

Ultimate fate of someone falling out of a skyscraper in warped gravity

At the climax of my story, most of the people on the planet have the way they interact with gravity magically altered. Until a week passes or they die (whichever comes first), instead of being pulled ...
2
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2answers
134 views

Injury to the lower jaw - what would be the consequences?

One of my characters suffers an injury where a spike pierced his lower jaw and severed his tongue. Ignoring the fact that he may not have survived this wound under normal circumstances (eldritch ...
14
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3answers
2k views

How big should a terrarium be to be self-sustained?

I read some time ago about terraria (singular: terrarium), which are basically small ecosystems of plants, isolated from the outside world (they get just energy from outside, not water or oxygen). The ...
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3answers
99 views

Aliens want to do science experiments on humans [closed]

If humans encountered an alien species, what would we do? Probably kill some and put them in plastic bags to take back to earth. We would probably capture some and put them in cages and do all sorts ...
2
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4answers
208 views

Is there a scientific explanation for mental manipulation? [closed]

I have a character who can suggest things to people, and what she says, they believe to be true. Is there a way to scientifically explain this, even vaguely? I was wondering if perhaps a form of ...
4
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1answer
203 views

How would their children look?

My story takes place in a medieval/fantasy setting. The main part plays out on a locked-off island with a fairly uniform population I'd call Asian to keep this question to the point (look Asian and ...
5
votes
2answers
168 views

The impact of an intelligent and (mostly) hostile flying race on weapons and armor

A race of dragon-like humanoids - for brevity's sake just think of the Dragonborn of D&D, just with wings - were the first species to achieve sapience, and have had lots of time to establish a far-...
13
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5answers
2k views

How much TNT is required to vaporize a human body?

Ideally, when I die I want to be blown up; go out with a bang, you know? However, I wouldn't want chunks raining down on everyone. How much TNT would I need to have secured for my funeral to ...
6
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5answers
448 views

How long can a human survive inside a dark box?

I am toying with an idea which requires a human to be stuck in a dark box for the rest of their life. They receive regular exercise of the arms and legs, air, food and water and their bodily ...
7
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2answers
195 views

What's the disease?

In a near-future sci-fi world, I described a disease with the following characteristics: Affects human female children (not necessarily exclusively). Is a neurodegenerative or similar disorder, ...
16
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5answers
5k views

At what temperature should the earth be cooked to prevent human infection?

Humans are the equivalent of bacteria to planet-eating monsters. And since, as we all know, eating humans is dangerous business, these monsters have decided to cook our great planet Earth before ...
2
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5answers
316 views

How long can humans survive on this diet?

My characters get trapped in a universe where Apes, specifically chimpanzees, rule supreme and humans are just wild animals. Like most wild animals, humans are often taken from jungles and rain ...
45
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31answers
9k views

How can I make humans NOT WANT to investigate how a supernatural ability works in an intelligent, non-human creature?

We've had a few questions where answers state, to a lesser or greater degree, "humans would investigate this ability to figure out how it works" in another creature with abilities not readily ...
5
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3answers
353 views

Mega-human: What are the largest possible dimensions of a human? [duplicate]

How big can a person be while retaining all the functions of all their organs (including bones)? I am wondering if it is possible for large people to exist without compromising some part of their ...
34
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20answers
13k views

Should immortal women have periods?

Mod Note: Some people may be squeamish about this subject, please keep all responses clinical rather than vulgar. So, in my world, I try to play the "immortality" trope with twists that make it ...
6
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4answers
260 views

How can sex lead to a boost in performance for competitive sports?

Many believe that sex before a competition can have a negative impact on performance in combat, speed and strength sports in males. Athletes from strength and speed sports showed decreased performance ...
16
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6answers
4k views

What would be the tallest possible height for humanlike creatures in earthlike conditions?

This is about "giants" inhabiting a fictional earth-like planet somewhere in the Universe (like those in the movie Prometheus, for example). Assuming that all the conditions (temperature, gravity, ...
6
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7answers
5k views

How could a mummy come back to life?

What conditions would have to happen to re-animate a mummified person to come back to life with consciousness fully restored? What would the conditions of the mummification be and biological/technical ...
5
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2answers
476 views

Can Apes (Including Humans) Be Naturally Patterned Like Felids?

For visual reference: Apes are visual species who rely more on their eyesight than any of the other senses. As a result, they see the world in three shades of color, whereas other mammals see in one ...
53
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12answers
7k views

How can an organ that provides biological immortality be unable to regenerate?

After Cain killed his brother Abel, he was cursed by God to wander the earth forever. On his travels, he met a sympathetic woman named Lilith. They discovered that they had a mutual beef with their ...
2
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3answers
288 views

The Ancient Guardian

In my world there is an old human guarding something of great significance. All chemical reactions in their body have been slowed down to a microscopic fraction of what is deemed usual*. Once the ...
5
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4answers
221 views

Military academy in geostationary orbit

Say a novel is set 100 years from now, when a confederation of nations establishes a unified military force. (Yes, I know, but this is fiction after all) Would a military academy, training astronaut ...
5
votes
4answers
389 views

What would humans look like if they lived 50-100,000 years 6 to 9 km above sea level?

What would humans look like if they lived 50-100,000 years 20,000-30,000 feet / 6 to 9 km above sea level? Or 500,000 years? Would we have bigger lungs / chests? Bigger wider noses? Thicker skin and ...
2
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7answers
249 views

Alternatives to War [closed]

In this world, violence has developed to be perhaps most definitive, means of action. Not just humans, but many other species face the harshness of battle, be it to defend their young or gain ...
1
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4answers
431 views

Newton's 3rd law & Quantum entanglement

Once a long long time ago a guy called Newton came up with a law he called his 3rd law. "The laws of motion" Everyone knows about "Every action has an equal and opposite reaction" My question here ...
6
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5answers
378 views

How Are Humans Special? [closed]

Setting: Far future space based science fiction. Think Star Trek: Enterprise levels of tech with more consistency and more resources if that helps. There are 4 sentient species in my setting: Homo ...