Questions tagged [species]

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

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1answer
87 views

Anatomically Correct Glebsig

A Glebsig (plural Glebsigi) is an intelligent alien species from the game Stellaris. They look like this: Glebsigi can float in mid-air with their tentacles hanging below. Glebsigi manipulate things ...
1
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0answers
98 views

Merfolk Laws And Government [closed]

Recently, I saw this image, and later, this image, which inspired me to think about the culture of merpeople. I've got quite a lot worked out, but I'd appreciate hearing other's ideas. In particular, ...
1
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0answers
39 views

How would you differentiate between “humanoid” species and animal-like species in terms of names? [closed]

Basically I have multiple humanoid species (like elves, dwarves, etc) that are totally made up, and I also have animal species, like cats and dogs animals. Is there something I could call all my ...
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0answers
63 views

Anyone wanna design some xenosophonts together? [closed]

I’m Campbell and I’m looking to create a science fiction universe. I’m 18, and I’m returning to writing and relearning a lot of things. But I’d love to make some friends and create an alien species ...
4
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3answers
142 views

How can a creature evolve to have two separate food cycles?

A species of interdimentional predators exist in a separate reality from ours. They pass into different realities through portals which occasionally open up between worlds. Once there, they feed on ...
5
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5answers
148 views

How do shapeshifters not get sick when copying other gene?

Imagine a certain group of intelligent species evolved the ability to edit their own RNA, manipulating the coding process to make proteins in their bodies. Why RNA you are forced to ask, well it's the ...
6
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4answers
122 views

How does a species with heat cycles deal with over population?

I'm at the very early world building for a potential story where I have a sort of humanoid feline species that I need to have been known as expansionist and/or war-like in the past but not be ...
6
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5answers
304 views

What Changes Are Needed To Make A Land Vertebrate More Than 100 Tons?

I'm working on a species of fantasy creature based off the mythological Behemoth. It's only constraint is the laws of physics itself. Environment and evolutionary lineage won't be relevant due to the ...
12
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6answers
5k views

Why haven’t scientists found evidence of humans interbreeding with aliens?

In my alternative universe, Atlantis was a real city that existed, although it wasn’t called Atlantis or founded by humans. Atlantis or rather, Dosham was a city on an isolated landmass in the ...
3
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10answers
1k views

How can an open area prevent its inhabitants from leaving? [closed]

Long ago, the elven races were embroiled in a civil war called the sundering. This war split the elves into different groups, which eventually became separate races. The elves that remained in their ...
0
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0answers
49 views

Why would humans evolve pointy ears? [duplicate]

So, I'm creating a world in which there are elves. There is no magic in this world, it's sort of post-apocalyptic. These elves evolved from humans. I'm asking whether or not it's possible for humans ...
5
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4answers
219 views

How can I increase brain processing capabilities without overloading it?

The human brain is a jackass. Your senses are capable of processing large amounts of information to the senses. However, the brain blocks most of this out of the consciousness in order to allow this ...
-3
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1answer
68 views

if a bipedal dog were to evolve, what main cultural and behavioral patterns would follow? [closed]

We can see it in most of us humans. Most homininae, including gorillas apes and humans, act generally similar even if we look really different. We laugh in the same way, we stay in families the same ...
1
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1answer
129 views

What would a society where humans coexist with a second species with the intelligence of an 8 year old look like?

An alternate Earth has two species coexisting in it: Humans and Khnosh (/x'ʔɒʃ/) since the Stone Age. Adult Khnosh have the intelligence of the average 8 year old human but the strength of a human ...
4
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2answers
181 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 ...
38
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18answers
15k 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
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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 ...
4
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2answers
124 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
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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
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2answers
119 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
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3answers
202 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
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4answers
514 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
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5answers
176 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
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1answer
106 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
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6answers
558 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? ...
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4answers
217 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
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0answers
155 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
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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
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2answers
531 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
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1answer
140 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
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1answer
163 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
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3answers
188 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
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3answers
639 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 ...
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5answers
201 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
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1answer
152 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
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4answers
214 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
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3answers
171 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
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4answers
361 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
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3answers
782 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
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2answers
131 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
131 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
913 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
287 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
492 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
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2answers
62 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 ...
54
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
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4answers
390 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 ...
8
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4answers
937 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
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2answers
146 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-...