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Questions tagged [species]

For questions about specific groups of living organisms that are similar enough to interbreed successfully.

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3
votes
2answers
80 views

How long would it take for segregate human populations to speciate to a point where they could not interbreed?

Coming from an earlier asked question, I was wondering how long it would take (potentially a range) for two human populations that are separated from each other to speciate enough that they would no ...
30
votes
15answers
11k views

How many generations would it take until the noble and peasant classes become different species and cannot interbreed?

In this world: Technology: medieval, it should fit with real world history, for example: Low life life expectancy due to poor medical technology (vulnerable to disease), warfare, High infant ...
15
votes
12answers
3k views

Habitable Planet with Highly Eliptical Orbit

Would it be possible for life to develop on a planet with a highly elliptical orbit? (Similar to a comet, but possibly less extreme.) If so, what conditions would be necessary and what would the life ...
2
votes
1answer
94 views

Would gestation for tiny humanoids take more or less time?

So I'm working on a species of tiny humanoids. They are about 13cm tall and are not that different from humans apart from their size. Would their gestation period be different, and how much?
9
votes
2answers
1k views

How do wraiths control their bodies?

In my fantasy world, wraiths are a species of shell-less, regressed crustaceans. They lay their eggs inside animal skulls, using them as shells. The wraiths' bodies are incredibly weak and they cannot ...
5
votes
2answers
105 views

anatomy of a head-butting cyclops

In my fantasy setting, cyclopses are large (about the size of a rhinocerus), carnivorous humanoids. They have a single blunt horn on their forehead, which is their primary tool for taking down prey. ...
4
votes
3answers
182 views

Would it be possible for species to become sapient without using tools?

Set in a parallel universe, in a galaxy far far away, an Earth-like planet orbiting a yellow dwarf star with the mass of 1 solar mass. And yes, indeed that planet comes with a natural satellite that ...
7
votes
4answers
317 views

Dr. Frankenbull's Problem: How To Tell Aurochs From Bison

The mad scientist community is...mad, to put it kiddie-appropriately. Their logic has the tendency to make 0% sense 100% of the time (provided, of course, that they ever bring it up.) So you can ...
7
votes
5answers
159 views

How can the epidermis be manipulated at will to become clothing-like material?

In this world, elves developed along similar lines of homo sapiens, with some major differences that allow for a small metamorphic ability. Their epidermis, the outermost layer of skin, can be shaped ...
1
vote
1answer
99 views

How to capture the dichotomy between “Ideal specimen” and an the species? [closed]

How to reasonably worldbuild a species that exhibits a set of qualities and principles (has a "hat"), but also doesn't view it as an ideal and would view that a perfect/moral specimen steps away from ...
6
votes
6answers
504 views

Is plausible to have subspecies with & without separate sexes?

I'm creating humanoid specie with two subspecies Hairy races - roughly based on humans, chiss, mirialans, with standard males & females sexes Tentacle races- roughly based on asari, twilek, ...
5
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6answers
1k views

What would happen to a Neanderthal today? [closed]

If a time machine were created, and we used it to steal a newborn Neanderthal, then give it to a volunteer to raise, what would become of it? Could it learn English, and possibly even have children? ...
-2
votes
4answers
201 views

What is holding the cephalopods back [closed]

We already know that cephalopods (octopi and squids) are kind of smart. They are smart enough to unscrew jars. Bet on football world cups (and even win some of those bets), disguise themselves, and ...
1
vote
0answers
119 views

How could an amorphous species work? [closed]

In the setting I'm building, then there are two lifeforms to have existed; Angel and Demons. Both are closely related, as speciation between happened rather recently in their history. They both also ...
18
votes
9answers
5k views

How could our ancestors have domesticated a solitary predator?

It is a well known fact throughout human history that cats are bloodthirsty psychopaths, and a menace to society. Cats murder billions of innocent rodents a year, cause ecological disasters, and give ...
6
votes
2answers
470 views

How long would gestation period be for dwarfs?

Dwarfs are intelligent creatures, with stronger bones and muscles but smaller than humans. They live mostly under ground (caves, mines, etc.) and reproduce sexually. How long the gestation period ...
1
vote
1answer
137 views

How fast can directed evolution make the leap from unicellular to fishlike ability level? [closed]

Premise target: A few thousands of intelligent machine-scientists have been tasked on the creation of an organism with the abilities of an animal. The exact requirements that they are given are: Can ...
1
vote
1answer
146 views

Genetic altering to make human lungs strong enough to process water [duplicate]

I am aware that human lungs can't process water due to other reasons, but I am working on a setting that has genetically altered humans of various degrees and one of them can breathe water and air. I ...
0
votes
3answers
177 views

Could a creature have a separate pouch to hold food until it is needed?

I am developing a species that gives birth to live young after a very brief pregnancy. The infants are somewhat underdeveloped due to this fact. The harsh environment of the mountains means that those ...
5
votes
3answers
618 views

What kinds of metals will function as a blood base? [duplicate]

I've been working really hard for a while now on a race of creatures called Nordic mountain Valkyrie Dragons. They are large: around 7'ft tall, and 9'ft from nose to tail tip, and I'm trying to come ...
-2
votes
5answers
187 views

What skin colours would highly adaptable, hunter humanoids naturally evolve?

In the new setting I'm making, I found an opportunity to make a species of humanoids that I simply couldn't resist. So I got to work, making the tribal herdsmen and hunters of the predominantly ...
-2
votes
1answer
150 views

Deep-space species [closed]

How feasible are these characteristics for a species based on Earth-like biology? Living entirely in space. That is, being able to survive in a vacuum. Having a method to propel itself without using ...
2
votes
4answers
206 views

How To Tell a Turtle Sans Shell [closed]

On our Earth, what makes a turtle a turtle is its ribcage widened and fused to create a tough, protective shell. In comparison to other reptiles, alive or extinct, the turtle design has got to be the ...
0
votes
3answers
159 views

Why would any diety need to reincarnate into mortal forms to gather data on its own creation? [closed]

This setting follows a religion in which a god, originally a unisex entity and the seat of human consciousness, split himself into two separate beings and reincarnate into mortal forms. These two ...
9
votes
4answers
301 views

How would a life form conform their anatomy to fit whatever they wear?

In the sci-fi setting that I've had on the backburner for a while now, there is a species known as the Azmarans. They are a very socially adept species, between them having a rather communicative ...
3
votes
3answers
620 views

If humans descended from raptors rather than apes [closed]

In my scifi novel, all intelligent life eventually reaches what we might consider a humanoid form. Likewise, life on other worlds generally follows a semi-parallel evolutionary path, meaning that life ...
-1
votes
2answers
123 views

If engineers were to create an entirely new human species, what factors would they consider? [closed]

Say engineers wanted to create a new human species that is perfectly suited to the environmental and seasonal changes of the current world: What features would they consider? The new species is also ...
2
votes
1answer
126 views

The World's a Jungle Again. How Many Species Would Crowd the Continents? [closed]

In accommodation to my last question, we are now transferring from meteorology to ecology. Today, tropical rainforests take up only 3% of the world's surface, yet they take up half of the plant and ...
7
votes
6answers
900 views

Could super-sized and intelligent detrivore aliens exist?

For my story I have an alien species who are detrivore. They are also an intelligent species on par with humans. But many people have pointed out to me that intelligent detrivores don't work, because ...
4
votes
0answers
260 views

What is a realistic look for a humanoid race that can live in deep-water and land? [closed]

So I have an original species that I'm creating called the Larimar. I have a picture of them below, which I drew. I'm still working on the backstory for these folks, and I don't want to give away too ...
2
votes
3answers
433 views

What subspecies would develop for goblins, and what would be the main differences? [closed]

I am developing a fantasy universe. In it, then there are 6 Continents (Excluding Mapiya, which is in the sky): Agricet (Asia), Aztlan (Pre-colonial Meso/South America), the Biting Glaciers (The ...
-1
votes
2answers
58 views

Process for determining how a new species affects other species

We are using Earth as the basis for our planet, so we already have very detailed information on the geography, species, etc. to work with. There are additional species we are adding, and I thought the ...
53
votes
12answers
12k views

How can a fish that explodes by itself prosper enough to reproduce on a grand enough scale to persist as a species?

In the underwater survival game Subnautica there is a fish called Crashfish that, upon being too close to it, swims out of its plant to chase you and eventually explode. The explosion leaves no ...
3
votes
4answers
378 views

What would be the religious ramifications of transforming one's self into a new species? [closed]

The year is 2050. Bio-printers have just gotten approved for sale to the general public for printing food, polymers, fuels, wood, medicines, etc. Unknown sources released the source code of viruses ...
7
votes
3answers
888 views

Is this subspeciation plausible?

Below is a diagram showing transverse cross sections of skulls representative of the two subspecies (A and B) of the Trilateral* species. Is it plausible that such obvious differences – noting the ...
0
votes
2answers
141 views

What legal ramifications would befall by turning ones' self into a new species? [closed]

The government came to take his research. So... he dumped all of it to the internet. Blogs, social media, email, torrents, deep web, forums, etc. Included are the instructions for, using readily-...
7
votes
12answers
2k views

How would a species, which does not understand the concept of war or fighting, react to a war? [closed]

Try to imagine a species which does not know what fighting, conflict or war is. They don't have animals on their planet, they are totally on their own. Now humans come and kill some of them and stuff ...
3
votes
4answers
173 views

What siege constructions might a snake people race use to scale walls?

In a ~medieval time period, what might a snake people race use to scale city walls? I'm guessing siege towers are still valid. However after that I can't think of less build-intensive ways for them to ...
0
votes
4answers
398 views

Size of the “Monster Hunter” planet

Imagine a world in which you have all the creatures from the game franchise "Monster Hunter"... Screenshot from the upcoming Monster Hunter World game ...and when I say all the creatures I mean ...
-1
votes
2answers
99 views

Are there any planets that are similar to Earth but with high amounts of metal discovered yet? [closed]

I have a species that I am currently creating that uses telepathy. They would need high amounts of metal in their habitat to be able to communicate the way they do. Humans would also need to visit ...
38
votes
10answers
13k views

Suppose the Orcs are mammals, why is their skin green?

Most species of animal, especially mammals, have a special skin cell the produces melanin, which is responsible for the color of their skin, but orcs are generally depicted as green creatures and, of ...
9
votes
3answers
431 views

What would a language spoken by caninoids sound like?

Basically, when designing alien and fantasy races, I tend to try and figure out how they would sound. I originally figured that their language would be made of growls and barks, but then I realized ...
2
votes
3answers
2k views

Can multiple intelligent species coexist?

I am considering specifically multiple intelligent species that all evolved on the same planet, and whether it is plausible that they will end up in a multi-species society or whether one species will ...
5
votes
3answers
975 views

Is it possible for a biped, humanoid, digitigrade species/race to be able kick, and why or why not?

If you think about it, the reason why we are able to kick is because of how our leg bones (in addition to the rest of our skeletal and muscular systems are set up) are designed. A biped, humanoid ...
7
votes
3answers
501 views

What factors would allow this caninoid species to evolve successfully?

There's not much on this, so I'm winging it. Plus, I'm curious to see if this species could actually succeed in advancing to the Stone Age. Basically, a species that I have created (the Verrisirs) ...
1
vote
2answers
142 views

How would having weird eye lenses affect a species' ability to understand geometry?

Suppose you have a race of early people similar to humans, except that they have fish eyes to help with peripheral vision. Would this adversely affect their spacial reasoning skills? It seems that AS ...
-1
votes
2answers
96 views

How would humans adapt to extreme climates [closed]

I have a situation when urbanites without any useful survival skills (bankers, marketers, curators, sociologists, etc) are mysteriously brought on a Earth like planet. They have to revert to hunting ...
5
votes
5answers
1k views

How would we choose which species to populate Mars with?

As has been shown many times, once a species "escapes" into an environment, there's no reeling it in. So choosing the right species to terraform Mars is incredibly important. How would we choose the ...
0
votes
2answers
192 views

Do I need permission to use a species of creature from a story and add it to my own?

I am wanting to do a story that revolves around Orcs. Orcs are generic that any fantasy story can use them without getting any permission. Would I be allowed to use Uruk-hai as a sub orc species (or ...
3
votes
1answer
260 views

How do migratory mermaids work now?

I have an euryhaline mermaid species meaning they can cope with both fresh and saltwater. This species are born in freshwater lakes at high altitudes and will swim along the river into the sea or ...