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Questions tagged [creature-design]

For questions regarding the viability of a life-form design. These questions should focus on biologically plausible creatures.

2
votes
1answer
105 views

Is this humanoid dragon realistic the way I’ve imagined it?

In this world I’m dabbling with, the dominant species is a race of six limbed humanoid with two wings on its back slightly below the shoulder blades. They are very slender (“BMI” is between 17 & ...
17
votes
10answers
899 views

Fixed-Wing Birds?

How plausible are naturally-evolved, biological, fixed-wing flying creatures? Could such a creature plausibly evolve in Earth-like conditions? If so, what method would it be most likely to use for ...
7
votes
2answers
189 views

Brain Tick, how could it take over a host's brain?

There was once 12 kingdoms in the ancient days until the kingdom of Eo was devoured by the very forests it called home. The people of Eo have been turned into beasts wandering the woods and preying ...
35
votes
4answers
7k views

How to make a realistic 'giant'

Imagine a race of what we would call 'giants', each of them possibly around 8 to 10 feet (2.40-3.00 meters) tall. What differences would they need compared to us regular humans in order to function? I ...
4
votes
3answers
173 views

What weapons would nanomachines use?

So, the strongest of my current characters is a happy little cloud, that's composed of nanomachines (well, not exactly nano, it's well in the micro prefix, but individual parts obviously require ...
8
votes
3answers
177 views

Symbiotic Assassin Vines

I have an idea for an encounter in my world that goes like this... A weary group of adventurers are trekking through a great ancient forest. This forest is avoided by most due to strange tales of ...
5
votes
1answer
131 views

How do humans with electric organs prevent self-electrocution?

In my world, a small population on an isolated island were bitten by radioactive electric eels while fishing. I read that the eels can send out carefully timed signals through their nervous systems ...
4
votes
0answers
663 views

Anatomically Correct Centaur [duplicate]

I am honestly surprised no one's done this one yet. The centaur is a creature from Greek myth with the head, arms, and torso of a human replacing the neck and head of a horse. Standard Anatomically ...
14
votes
1answer
2k views

Anatomically Correct: 4-legged sapient creatures (“centaurs” etc.)

This is a part of the Anatomically Correct series. If a magic-free fantasy/SF world were to have naturally evolved hexapods as humanoid as possible, living among bipedal humanoids, how would they ...
3
votes
2answers
104 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 ...
3
votes
2answers
198 views

Draconic Centaurs

And you thought I was finally done with centaur questions. I have a centaur race called the Draconitaurs. They're essentially centaurs, but with western dragons instead of horses. The dragon tropes ...
4
votes
2answers
236 views

Building structures underwater: What could a giant crab do?

Okay, so I was working on making a sapient creature that lives underwater ended up with what was basically a two-hundred pound crab. They have human level language skills, and I decided to justify ...
11
votes
6answers
4k views

Would evolution select for mermaids without breasts?

So ignoring all the other hydrodynamic inefficiencies associated with sticking a human torso on a fish body, let's just worry about those most distinct of human female features, breasts. The problem ...
1
vote
2answers
129 views

Gnolls and their cooperative abilities [closed]

Gnolls are aggressive hyena like humanoids, they aren't very fun to have around for the fact that they fight for really anything and have almost no attentions span. Actually Gnolls are really ...
12
votes
1answer
2k views

Centaur anatomy help

If a centaur were to have one set of organs, how would they be placed and what sizes would they be? What limits would there be on the centaur's body?
10
votes
7answers
4k views

Could a humanoid species exist with vastly different heights?

Many mythological humans vary in depictions. Let's use Trolls from Scandinavia as an example. Some are said to be giants compared to humans (I'd imagine twice the height), and some, like Danish Trolls,...
16
votes
6answers
787 views

What is the most plausible ancestor for tool-using, sentient, bipedal reptilians?

A classical trope of fantasy is lizardfolk, or a similar species by another name (see for instance the Argonians of Elder Scrolls fame). In general, though, we're dealing with: Bipedal, often ...
5
votes
3answers
745 views

Ideal Centaurs: A Torso and Four Legs

Centaurs. Half human, half equine. The idea's been bouncing around in my head for the past hour, so I'm going to ask it here: Would a centaur structurally make more sense if the torso was at the ...
2
votes
2answers
190 views

What's the plausibility of making a body part invisible?

I have a humanoid character with wings, made possible by a little fictional magic, but I'm trying to keep it as scientifically correct as I can. All right, so she has wings, but walking through busy ...
4
votes
2answers
329 views

Why everyone hates the undead? [closed]

After death some might turn into undead by different means of magic. when brough back to life as an undead gaining new sheer strength and magic powers is to be expected while things like sense of ...
16
votes
2answers
2k views

Can humanoids be reborn from a tree?

Details: A culture of dryads has a strange death tradition. When a dryad dies there's usually a medic, or better say a "shaman" that rips a strange looking organ or gland off their head. The gland, ...
0
votes
4answers
2k views

How could a human be corrupted into a demon?

In many stories, the transformation of human to demon has been interesting to think about. This of course extends to mythology: In multiple folklore, it's said that Lilith became a demon of her own ...
5
votes
2answers
416 views

Anatomically Correct Typhon

Please avoid the obvious jokes. Now I know there are different versions of the Greek monster Typhon, so first I will try to describe its properties. Incredibly large roughly 50-100 feet tall, ...
5
votes
4answers
198 views

Could an intelligent race of seals craft tools effectively?

A while ago, I asked a bunch of questions about my alternate Earth timeline, which contains plausible fantasy creatures. One of the concepts I've devised more recently is a solution for mermaids (Most ...
23
votes
6answers
2k views

Anatomically Correct Cyclops

As a series of anatomically correct myths, here we have the Cyclops. One of the most similar creatures to man but with 'one' noticeable difference, one eye. It seems that land animals love their two ...
10
votes
3answers
2k views

What impact would copper-based blood (haemocyanin) have on a humanoid creature?

Prompted by a question about the impact of dietary iron in elves (How would Fair Folk-type elves deal with dietary iron?), I wondered whether haemocyanin could be an alternative to haemoglobin in ...
23
votes
6answers
5k views

Anatomically correct multiarmed humanoids

Humanoids with more than 2 pairs of arms weren't an unknown concept in human culture. From ancient mythology, there are the hundred-armed Hekatoncheires (who have their own thread here) and six-armed ...
17
votes
8answers
1k views

Magivore - designing a magic 'eater'

Yes, magic means I can say 'make it so' and it is. But I see too many options and not sure which ones would make more sense. I'm picking one idea that I've never seen in a book. So a Magivore is ...
20
votes
7answers
4k views

Physical correctness of trolls with high regeneration ability

In my fantasy world there's the race of trolls, vastly inspired by the ones one encounters in Baldur's Gate 2 (see here). Millenias ago, they've been driven underground by orcs and elves, as well as ...
9
votes
6answers
3k views

What would be the evolutionary adaptations of a subterranean fantasy race? [closed]

In typical fantasy novels, the dwarf civilization lives within mountains and is known for mining. But if a race of sentient people really did live largely underground in mountains, what ...
-4
votes
1answer
156 views

The ultimate organism! [closed]

So I've created this creature I'm calling the Shod, short for shadow of death. This creature lives in space and looks like a massive, black cloud. Inside the Shod, particles move at immense speeds, ...
6
votes
2answers
992 views

The pros and cons of a quadrupedal human over a bipedal one?

Assuming a human had 4 legs and could perfectly use them for walking(they are a bit like centaurs,who have the upper body of a human and the lower body of a horse). Would they have any advantages over ...
4
votes
3answers
284 views

Can my giants and humans coexist? [closed]

See my earlier question for the Giants version ! How quickly the tide turns... In my world, Humans are a thing. These little people just appeared, I hope they can be friends with us, giants. ...
4
votes
2answers
177 views

How would a human like species be able to swallow body parts whole?

My fantasy species has the ability to swallow small to medium appendages whole. They're known for biting off and swallowing hands and feet. A snake like jaw could work but how would it still maintain ...
22
votes
7answers
9k views

Anatomically Correct Angels

As part II of anatomically correct myths here we have the Angel. Angels appear in many cultures and are most commonly seen as simply winged humans. Is there a realistic way that angels could evolve? ...
11
votes
3answers
739 views

How could a vampire pathogen operate in hard science fiction?

While the vampire is a monster of folklore, modern technothrillers (e.g. Federal Vampire and Zombie Agency, Ultraviolet, Blade, Underworld, Daybreakers) have portrayed vampires as humans infected by a ...
45
votes
8answers
6k views

How do creatures with a hive mind communicate?

Suppose we have a civilisation which is made up of many creatures sharing a single hive mind. Each creature can see, hear and remember what each other member of the species (or possibly hive) has seen ...
12
votes
3answers
523 views

Comparative mythology and monster syncretism

Many mythologies across the world independently devised monsters with similar appearances and/or modus operandi. Many modern encyclopedias of mythological monsters often include cross references ...
25
votes
18answers
5k views

How could ghosts be explained without an afterlife?

I've always loved well-done ghosts. However, I've always hated the afterlife-speculation that they engender if used in a story. So I need a way to get ghosts without the fluffy spiritualistic bits. ...
22
votes
14answers
5k views

Can we use science to explain a creature that feeds on emotion?

This is a magic world question, and we certainly do not have anything on this planet which feeds on emotion. But if we did, I'm wondering how it might work with a look at science for something ...
4
votes
5answers
228 views

Anatomically Correct Humbaba

In ancient Mesopotamian mythology, Humbaba was an evil giant slain by the hero Gilgamesh in the famous Epic of Gilgamesh. In the epic, there was only one Humbaba, but for the purposes of this question ...
11
votes
3answers
2k views

Anatomically Correct Nuckelavee

As a series of anatomically correct myths, here we have the Nuckelavee. Is there a realistic way that Nuckelavee could evolve? Using Earth or near-Earth biology, how close could I get to the classic ...
4
votes
1answer
666 views

The Dwarf--Let's Get Real, Shall We?

Believe it or not, the diminutive but rough dwarf is the closest of all the humanoids to be biologically realistic. How? Let's look up Homo neandertalensis, the stereotypical caveman, in comparison ...
5
votes
3answers
304 views

Can a troll hide withstand bullets?

The trolls in my story have a very thick and nigh impenetrable skin. In the time before guns, you would need a very sharp high-grade steel blade to breach the skin and, even then, after a few hits, ...
6
votes
2answers
156 views

How would a literal eye on the back of the head work?

So I've got a fantasy race of people with four arms. Their second pair is able to reach behind them like how our arms are able to reach in front of us, and so could work with things behind their backs ...
31
votes
6answers
6k views

Anatomically Correct Gods

This question may seem like an impossible challenge. What I'm talking about here is a biological explanation for limited (or, for bonus marks, unlimited) form shifting, immortality (at least in age) ...
3
votes
2answers
318 views

How plausible are my metal eating life forms and their impact on civilization?

This question is a continuation of two prior ones. How to render much of a world's metal unusable? What minerals and metals in particular were vital to the development of early civilization? The ...
5
votes
2answers
251 views

Anatomically Correct Inklings

I’m writing a Splatoon fanfic, and I was hoping to make it a bit more science-based than the minuscule information we’re provided in-game. The two primary features of Inklings are their ability to ...
0
votes
4answers
323 views

Would vampires survive on synthetic blood? [closed]

I’m writing a novella for a school competition. One of my other main characters is a vampire. I’ve found very good scientific explanations behind vampires and their mannerisms etc. But instead of ...
3
votes
4answers
280 views

How would pixie to human two way communication work?

Pixie, no bigger than a tennis ball, has coexisted along side human for as long as history can remember, note that the pixie were never treated as pet, however slavery and smuggling activities are on ...