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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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2
votes
1answer
119 views

What advantages would riding a reindeer have over a horse?

I am currently creating a world in which the group in question is intended to ride reindeer rather than horses. The reasons for this aren't quite relevant, but they simply don't have horses available ...
5
votes
7answers
210 views

How to plausibly justify a species growing mineral-based protrusions that resemble horns or spikes?

I'm currently designing a sapient species for a science fantasy setting that's supposed to be a herbivorous, physically resilient, and bulky sort. They currently bear some resemblance to boars or ...
2
votes
5answers
176 views

Could a single species be arbitrarily diverse?

Are there any problems with a single species, in which all fertile members are able to bear fertile offspring with all other fertile members, having extreme amounts of diversity? For example, having ...
3
votes
1answer
112 views

What traits would a species have if it eats electricity to survive?

Microscopic or more complex, what do I need to keep in mind to create a species that eats electricity. Like it touches an electronic equipment or battery or cables and sucks in their charge or stored ...
2
votes
1answer
79 views

Explain the concept of "two haploid eggs fusing to produce a single diploid embryo"

So I'm creating a society that is hermaphroditic (specifically what I really want is a society where there's only one gender and both sexual partners experience pregnancy) so I've been doing research ...
1
vote
1answer
144 views

Considering a sentient species which is at the physical scale of chemical molecules, what would their higher limit of observation be?

This sentient species survives at the molecular scale and is capable of manipulating their environment by ingesting/ engulfing their environmental molecules and electrodynamically manipulating them ...
5
votes
1answer
130 views

Humanoid Species

I am developing a form of humanoid very closely related to humanity, and I am trying to see both what differences are possible, and what the explanation for various features are possible. For example, ...
1
vote
2answers
207 views

What if aliens recieved a rogue Earth?

Imagine: You are a member of an alien species, uncomparable to most living things on Earth, and living on an arid planet, around country sized oases. During your version of the 1800's your star ...
0
votes
1answer
125 views

What would rotating ears look like on a humanoid species?

I'm trying to make a biologically accurate, human looking species. Since they can't make many sounds, they also use their ears' positions and rotation to have an advanced vocabulary. So the same sound ...
6
votes
6answers
885 views

Could more than one sentient species share one planet? [closed]

You might have heard or seen this one before. I'm imagining a world where you see humans, dragons, shapeshifters, and more living on one planet in harmony. Do you really think it's possible? Can more ...
20
votes
7answers
3k views

What kind of ships would an amphibious species build?

To give a bit of background and ground the question in context: I'm concerned with the technology level from prehistory to Renaissance, or thereabouts. Analogous to Earth history, the 'normal' land-...
6
votes
3answers
232 views

How would quadrupeds dance?

Yet another odd question. Now, in one of my worlds, I am creating cultures for cats with human intelligence, but this question applies to essentially all quadrupeds. I wanted to introduce dancing into ...
31
votes
12answers
3k views

Universal Language

If I want to have multiple intelligent species (with different languages for each), how can they exchange each other? Some species may not have eyes, legs, hands, ears, ... so is there a way for a &...
2
votes
3answers
157 views

Wings going from locomotive purposes in juveniles to sexual purposes in adults, plausible?

So I thought about how my dragon-like species would get it's wings between the arms and legs and I figured that this would be the evolutionary path for such a creature: Hexapodal ancestor -> ...
7
votes
2answers
191 views

Is it possible to create a new hybrid species of the homo genus that can produce offspring?

I have read about hybrid speciation: "speciation where hybridization between two different species leads to a new species, reproductively isolated from the parent species". I wanted to know ...
1
vote
1answer
215 views

Anatomically Correct Glebsig [closed]

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
vote
0answers
163 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, ...
9
votes
4answers
952 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 ...
7
votes
5answers
366 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 ...
1
vote
0answers
54 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 ...
1
vote
0answers
83 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
votes
3answers
153 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
votes
5answers
191 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 ...
7
votes
4answers
212 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 ...
12
votes
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 ...
4
votes
2answers
147 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?
3
votes
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
votes
0answers
52 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
votes
4answers
247 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
votes
1answer
108 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 ...
9
votes
4answers
411 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 ...
1
vote
1answer
145 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 ...
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 ...
39
votes
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 ...
4
votes
2answers
231 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 ...
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 ...
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
129 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
272 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
922 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
201 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 ...
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 ...
1
vote
1answer
109 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 ...
7
votes
6answers
644 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
votes
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? ...
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 ...
-2
votes
4answers
237 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
184 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 ...
6
votes
2answers
662 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
143 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 ...