Questions tagged [creature-design]

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

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150 views

What armor for my giant slug species to do battle at sea?

Set in the medieval period around 1400AD, the atlantean set flipper on the land of the giant slug and destroyed many acres of crops, this provocative action angered the giant slugs. These giant slugs ...
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2answers
103 views

Foul Smelling Flatulence Flyers

I am trying to flesh out the details of an interesting animal (for D&D) that will both disgust my players while at the same time have them think the animal is a "useful" creature. I want the ...
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2answers
169 views

Creating a Scientifically Semi-valid Pseudo-Arthropod Primate Part 3: Mouth Parts

As a parody of the super soldier questions and as an efficient way of organizing these questions I will now start this series of questions about Pseudo-Arthropod Primates. Previous questions from ...
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2answers
188 views

Polycythemia good underground?

Polycythemia is where the hematocrit is above 55%. This can be divided into absolute and relative and absolute can be further divided into primary and secondary. Absolute polycythemia is where the ...
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1answer
159 views

How would MRI-vision works?

How would intelligent lifeforms evolve bio magnetic resonance imaging? No bionic components or any other prosthetic technology is allowed, how can I extend the ability to see through dehydrated ...
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2answers
224 views

What are some evolutionary factors that could evolve a species like this? [closed]

Bunny ears Large eyes Short height (3 to 4 ft) Highly intelligent Cat like nose And for the gravity of their homeworld we can assume it's Earth range 0.90 G to 1.10 G, and has a similar environment ...
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2answers
284 views

New post-apocalyptic apex predators to keep humans in check [closed]

In a post apocalyptic setting, when a virus wiped out the vast majority of our population, society is based on small settlements, barely surviving. The world is changed, nature is taking over. Lets ...
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2answers
236 views

Humanoid jumping 30ft into the air?

SO, Humanoid ~6' tall long strong legs with possibly better-than-human-muscles How can at least 30ft be accomplished or even more? I was hoping just super strong thighs, but if that's not enough ...
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2answers
116 views

How would environmental factors affect a giant rideable moth/butterfly? [duplicate]

If rideable-sized butterflies/moths were possible, how might environmental factors (e.g. climate, temperature, altitude) affect them? If the square-cube ratio issue could be overcome, and it could ...
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2answers
1k views

Quadrupedal species which can also walk bipedal and have hands [closed]

I am trying to design a species. Members of these species can run most efficiently in quadrupedal. If possible, they should press on their palms, not knuckles. They can also walk upright like humans ...
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2answers
143 views

World Turtle biomes

How large of a shell would a World Turtle need to have to have most of the major types of biomes on its shell, including but not limited to swamp, jungle, temperate forest, and polar forest? Also ...
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2answers
112 views

Biological adaptations necessary for weaponized (or otherwise made useful) reflux

I have been thinking about which mutants from Marvel are most realistic and Zeitgeist comes to mind. Long story short, his power is weaponized acidic vomit. He can spew it a few meters away at will. ...
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3answers
164 views

Would a wheeled creature be a plausible development of evolution? [duplicate]

So, as I understand it, wheels are almost completely absent in nature, in terms of a method of mobility. Would it be possible, or reasonable for such a creature to be made along the lines of evolution?...
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1answer
96 views

Possible inconsistencies of lesser forest wyverns that camouflage/communicate by changing skin color/patterns [closed]

I wanted some feedback on a forest predator species I thought of that would be the equivalent of wolves on my world. Like the title suggests, this species would be based on wyverns, but only in that ...
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1answer
133 views

What would an (tree person) Ent's voice be like? [closed]

We see Ents in certain fantasy settings, but what sort of voice might we actually expect them to have? Would they be capable of having a voice at all, or would they communicate in some other fashion? (...
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2answers
306 views

Mammals evolving antennea

In a species I am designing, they have eyesight similar to a cats, their vision at a distance is excellent, but the closer you get, the blurrier the vision is. One solution I had for this was for them ...
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4answers
2k views

Beings who control all elements too powerful? [closed]

I've got a human like being in one of my stories I'm developing who can control all the elements. Not like one of them controls fire, one controls water, etc. but actually controlling all the elements....
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1answer
73 views

Shedding rate reasonable?

My reptilian aliens that lactate become adults at 20 years old. I might add a graph here of proposed shedding rates over time and maybe even a separate graph for growth. But here is what I am ...
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1answer
879 views

Germanium Based Life

What would Germanium based life look like and what conditions would favor it. I know that it's not that common but I am going to handwave that. What would be the resulting look for such a lifeform if ...
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1answer
57 views

Animal with inner membrane gas separation

I want to make a creature capable of filter O2 from normal air in order to make several things... (filter air toxins, increase partial pressure of O2, etc). Could be possible make an organic membrane ...
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2answers
281 views

How would an entire Dragon population be wiped out? [closed]

Let me just set an environment first. So let's say a large number of dragons were situated in a remote mountain region of a world containing: Wood elves, who use forest type magic along with ...
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2answers
284 views

What would be a scientific explanation/theory for superpowers? [closed]

Amongst the towering, alaskan mountains coated with stark white snow sits an isolated ‘research facility’ trying to play god. They’ve created a human fetus and are trying to give it superpowers. I’m ...
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1answer
1k views

Humanoids with Wings ~ How Would it Work? [duplicate]

I need help with figuring out how two different types of wings would work for two different types of human-like creatures. This includes how they would fly [flapping, wing length, other things that ...
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1answer
185 views

Speed of flying bird [closed]

If you had a bird which was large enough to ride, how fast could it fly? I need this information to work out the scale for my maps as i know how long it takes for one of the birds to fly from A to B.
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2answers
492 views

Tentacles as “hands”

I'm thinking of aliens that don't have hands but use their tentacles to make and use tools and, eventually, advanced technology. I would like to know whether this is a realistic idea. For the purpose ...
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2answers
65 views

Slimes,bouncy green blobs [closed]

I'm writing a comic where semi transparent green blobs called slimes live on an earth like planet. These slimes are psychic and can hold things with their minds. They speak English. What must I do to ...
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2answers
136 views

What would little people eat and how would they gather food? [closed]

In my world a group of little people (about 3 inches tall) live in a meadow. What sources of food would be available to them in this environment( their digestive biology is the same as ours). ...
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1answer
146 views

Metamorphosis Lycanthropy Part 2

If you notice the part two, yeah I had one before this. Please read it before reading this one: Metamorphosis Lycanthropy Edit: just figured out it was closed. Sigh . . . Edit 6 You have been ...
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1answer
144 views

How dangerous would this pyromancer be? [closed]

A pyromancer has the ability to increase or decrease the temperature of both objects & air within 57,600 square feet. No matter what the object is the character can manipulate it as long as it's ...
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1answer
129 views

Different species of sapiens, each one with their own superpower? [closed]

In a simulated world created by humans, a diversity of sapiens species have "powers", capacities that humans were not capable of creating before in reality. Question: I want to know if it was ...
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5answers
116 views

Inorganic alien consciousness [closed]

If there was a form of consciousness that developed early on in the timeline of a universe, which processed information via quantum mechanics rather than the chemical impulses of lifeforms we're ...
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1answer
345 views

Fantastic beasts and where to find them: galactic edition [closed]

Far in the future, when we have the resources and ability to travel all over the galaxy, we will, no doubt (hopefully), finally encounter alien life. The chances of us being the only planet with ...
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2answers
127 views

Haunted by wererabbit's folksong

I've always been curious whenever I heard the mother wererabbit sings a popular folksong to the young, there is a particular line in the lyric that seems to puzzle me. It goes likes this: "up up and ...
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2answers
128 views

What animals would be most suited to a tidally-locked world? [closed]

Are there any species that would be able to sustain themselves on the sunlit face of the planet, the habitable Terminator-zone or even the freezing icy side of the planet? How would animals adapt to ...
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0answers
36 views

Making a scientifically accurate fire-breathing dragon [duplicate]

I came up with a concept for how a dragon could breathe fire. However, I haven’t figured out some crucial details, which I need help with. The dragon would capture the methane gas produced by its ...
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0answers
21 views

Biological Process with UV Light Product [duplicate]

I have bacteria that will serve as the basis of the ecosystem providing UV light for plants within the enclosed, underground ecosystem. What sort of biological process could allow these bacteria to ...
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0answers
54 views

Would different blood types matter to vampires? [duplicate]

Pretty straightforward question here. Feel free to run wild with it. Would blood type matter to a vampire? Could they only feed on a blood type matching their own? Would a different typing have ...
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0answers
70 views

A laser shooting dragon? [duplicate]

This dragon uses very intense bursts of EM radiation as its “breath” attack. Obviously it can’t breathe light, but the attack originates from its mouth. This beam of light can permanently blind ...
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2answers
273 views

Is simultaneous hermaphrodite species stable?

I'm writing a story set in the after the end world scenario. The very few humans who survived the apocalypse in the facilities deep underground, decided that human race is too self-destructive and ...
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5answers
274 views

Is it possible that a species be intelligent and keep their animalistic trait?

As we all know, the brain consumes a lot of energy, so much that we, who has a bigger body and brain only have the same amount of strength as a chimpanzee. So, could a species evolve to develop ...
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2answers
197 views

Realistic “status quo” between my sapient species?

Info/Background: I am writing a novel, the world I am creating has ~3 (spoiler) sapient species derivated from modified humans. They are: Warriors, I don't have a name yet Have a unique metabolism ...
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1answer
110 views

Human Genome, does it hold “secret/lost/inactive” Code shared with animals VIA our Common Ancestors? [closed]

I seem to remember reading that in the human genome there's a lot of "inactive" code, codons that might have been useful millions upon millions of years ago but now have no effect on the human body as ...
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1answer
186 views

Why animals have to breathe? [closed]

First time poster, let me know if this is not about world building. I am not asking about the function of respiration nor the chemical effect of oxygen and stuff. I am asking if there is any good ...
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2answers
161 views

Could this creature with explosive saliva be possible? [closed]

I am imagining a creature (whatsoever) that could produce an other type of saliva when needed. it can produce normal saliva to ease digestion, but it can also produce, when needed, a strange type of ...
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1answer
128 views

What are the side effects to an ability that let's you experience the senses from a memory? [closed]

The ability gives you a photographic memory and let's you perfectly recall any event in his life, and experience all the senses (touch, vision, smell, etc.) from a memory by firing the nerves or ...
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2answers
175 views

Most Likely Natural Capabilities of Space Sea Creatures [closed]

SPAAAAAAACE! As we all know, space is teeming with life, but as fictive astrobiologists, plausibilifying the exact nature of species is paramount. Hence, take into consideration these species and ...
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1answer
152 views

Can a vampire heal itself? [closed]

If a vampire gets a cut or stabbed or just injured in general will it be able to heal itself? And will blood come out? I remember learning last term that to heal yourself you just make new cells?
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4answers
244 views

Is this species scientifically plausible? [closed]

Homeworld Zyns have evolved on ocean moon of Ctalul, the single major moon of gas giant Darstan which orbits the orange dwarf Verrstbirt. Ctalul was once an icy planet with an unstable orbit until ...
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2answers
108 views

A Different Look to Pteranodon [closed]

Any time we hear the words "Pterosaur" or "Pterodactyl", the one that we'd be most synonymous with is the genus Pteranodon. But in recent years, I've been growing fond of that most spectacular of ...
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2answers
74 views

Is it good or bad for humans and for the development of human society to hide their facial emotional expressions from strangers? [duplicate]

I am working on a story. I just want to know, will it be good for humans and for the development of human society to hide their facial emotional expressions from others especially strangers? If that'...