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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.

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2answers
269 views

Can my mermaids work?

Looking to how I can make Nagas and Mermaids able to exist and evolve in my story, I came across this post which explains how Nagas could evolve from humans: Anatomically Correct Naga In the top ...
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2answers
133 views

How would giant penguins affect the arctic/Antarctic ecosystem?

So, I was reading about the Colossus Penguin and was wondering how adding them to my world might affect the arctic ecosystem in my world? Obviously, they would need to eat a lot of fish, squid, and ...
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1answer
166 views

Viability of animal plant? (Energy calculation)

I'm trying to design a humanoid or anthropomorphic organism that would be classified as a plant. The main argument people mention is that it wouldn't be able to produce enough energy to survive. I've ...
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2answers
127 views

Would a venom vaccine work?

I have heard of antivenom naturally being produced in honey badgers(they are able to sleep off the venom). My humanoids also naturally produce antivenom as antibodies. But here is the thing. Even with ...
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1answer
2k views

If humans had wings, how big would they have to be? [duplicate]

I know that we could never fly even if we had wings because we're not aerodynamic but if we were. How big ( length * width or area ) would they have to be? I would like a clear answer or at least an ...
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1answer
116 views

Increased intracranial space

The brain is 1 major developmental difference between us and these humanoids. These humanoids start off with larger brains to begin with and so brain development in the womb happens at about the same ...
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1answer
281 views

How could Kuutamian animals work?

In Ribbontails Series Aman5 there are creatures called Kuutamian animals. These animals are sapient and can have any form. The creator uses the excuse that they have three DNA strands, but how ...
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1answer
422 views

Evolution in space [duplicate]

I'm working on the following premise: outer space, or at least our solar system, is littered with creatures akin to "sea monsters". Is it possible/plausible for a creature to evolve in such a way as ...
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1answer
111 views

Could this organism be viable?

I was wondering how the species described below could survive in tropical, subtropical, and warm temperate zones and in mountains, forests, wetlands, deserts, open plains, rainforests and coastal ...
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0answers
65 views

how would the osmoregulatory and excretory systems would be for a flying human [closed]

How would the excretory and osmoregulatory systems be for a flying human?
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0answers
48 views

Bacteria Producing Ultraviolet Light [closed]

I have species of bacteria that produce ultraviolet light serving as the basis for an underground ecosystem. What are possible food sources for this bacteria that are growing on the cave ceiling, ...
2
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1answer
307 views

Alternatives to cellular carbon based lifeforms [duplicate]

In my up coming novel this fall, I got the human crews as well as some humanoid alien species working and living onboard a FTL starship exploring an uncharted cluster of neutron stars and black holes. ...
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0answers
288 views

Could this animal rule supreme? [closed]

The setting of my story is a harsh desert land, with temperatures consistently exceeding 50 degrees Celsius. There are small ponds that exist, though very rarely. Water is in tight supply. The flora ...
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0answers
187 views

Death to humans by deadly monsters [closed]

Those pesky humans. We, Evil Overlords have a tough job with them. They can be set to slaves, but only for relatively short period of time. They promise you loyalty ... and snap! There is a knife ...
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2answers
331 views

How to remove the limit? [closed]

Most role playing games have an upper limit to how strong a character can become usually by means of a level limit or item power limit, players simply reach a point where no matter what they do they ...
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5answers
379 views

What would be the evolutionary pressures of horned simians?

I am assuming that monkey like animals are more likely to develop some form of horn or antler than apes(feel free to correct me), the question is what would be the most plausible function of the horns,...
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5answers
335 views

Anatomically Correct Monsters, Incorporated

In the world of Monsters, Inc., the titular monsters have wildly varying morphologies and abilities, but they nevertheless all seem to be members of the same species; after all, if it was a multi-...
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6answers
646 views

How could mammals evolve to resist damage from fire?

In a story I am writing, some animals (including sentient ones) can touch fire without being harmed. Not any kind of fire, though. They can caress the fire of a candle with a finger, and they can ...
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6answers
186 views

Gaining energy from draining your Happiness

In my world there is a villain who rules over the unhappy. In fact, we recently determined that he actually absorbs their happiness and uses it as energy to make himself stronger. This world does, in ...
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3answers
168 views

Room-Temperature Animal

Remember the Xenomorphs from aliens, how they didn't show up in heat vision? I was wondering how you could recreate that effect biologically... a creature which doesn't pop-up on IR (at least, not ...
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3answers
231 views

Creature Design: Wind world ectotherm

Premise By definition, an ectotherm uses environmental heat sources to regulate its own body temperature. The most common forms of body heat regulation that we observe from ectotherms here on Earth ...
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3answers
740 views

Why would a species fear its own children? [closed]

In the old Pixar movie; Monsters Inc. The monsters fear nothing more than human children, this is because the children are supposedly toxic. Its found out that this isn't true at the end, but what if ...
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1answer
209 views

Why would a male marsiupial agree to accept responsibility for carrying half of his mate's joeys?

I'm looking to create a species of marsupial that is heavily K select, which is to say they put significant effort into raising their young after birth (both of them :P ) in which both the male and ...
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4answers
4k 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 ...
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2answers
213 views

EKG, worried about merging

My humanoids have 2 hearts that are about 5 inches apart in the chest(this is to make room for the 2 aortas to minimize turbulent flow). However on an EKG, the rhythm of the right heart and the rhythm ...
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4answers
232 views

How can an opposing civilzation survive when another civilization actively pursues genetic engineering?

If one civilization pursues genetic engineering to create superhumans with superior intellect and everything else, how can other civilizations maintain a balance of power, apart from doing the same.
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2answers
358 views

How would sleep cycles work in a world with a years-long day?

This is in my world of balloons and zeppelins, war and peace, day and night. Sleeping may be the least important thing but it is still important. On this world, the day and night cycle is 8.89 of ...
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3answers
266 views

The Electric Dragon

The Volt Dragon is an incredibly dangerous beast that reeks havoc on any attempted air travel. This dragon generates many small but powerful magnetic fields whose strength can be varied voluntarily by ...
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1answer
343 views

Taking all the blood of a dozen humans and putting it into acid – could I create a wolf? [closed]

My story includes an evil mage that can manipulate everything that comes into contact with acid on a molecular level. This means if something touches acid there will be the normal chemical reaction ...
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2answers
145 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 ...
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3answers
214 views

Is a creature that within minutes can melt a block of ice with its hands feasible?

Imagine a planet where there are extremely cold temperatures and water can be found only in frozen state. To cope with harsh conditions the creature evolved so it can melt ice with its body surface ...
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3answers
190 views

How would an organism evolve to drink highly acidic water?

Exactly what the title says. I don't know to exact pH level of the water but it's at a level that it would kill a human should they drink it. What/how would a creature evolve to deal with drinking ...
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2answers
151 views

What configuration would provide the most protection for a male dragon's reproductive organs against mechanical and chemical attacks?

Dragons awesome (that's why sub-par writers and DMs use it as a substitute for an actually engaging story/setting) but they're still just animals, animals that reproduce. Besides it's painful to get ...
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2answers
138 views

A World Surrounded by a Powerful Energy Layer [closed]

In my story the world is surrounded by a powerful energy layer. The life in that world is dependent on that energy, just like we are dependent on oxygen. Is such a world possible? The energy would be ...
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2answers
407 views

Anatomically correct akaname

In Japan, there is a legend about scuzzy little creatures known as "akaname". These things are said to have a humanoid shape, red skin, stringy black hair, and long slimey tongues. They are said to ...
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3answers
263 views

How to build the Nocturnal and Diurnal branches of a Humanoid Race? [closed]

I am in the process of building two separate branches of the same race for my science-fantasy setting. One branch The Tribe of Light is Diurnal and The Tribe of Darkness Nocturnal. I have some of ...
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3answers
2k views

Is there a such thing as a dragon people? [closed]

How about I try this question another way. If I were to make a people who were half Dragon and half Human, What would be some of their traits and characteristics, as in what are the traits and ...
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4answers
177 views

Why would a species evolve to consume rock? [closed]

Why would a species (lets say badgers) evolve to eat rocks?
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3answers
156 views

what is the proper physical build of a fantasy adveturer? [closed]

I am trying to make a game and I want the characters to look somewhat like they could actually be someone who goes around slaying monsters, fighting evil over lords and their henchmen, all while still ...
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3answers
197 views

Evolution of intelligent drepanosaurs

For a story I require an intelligent [drepanosaur]. But to work with the plot the creature needs to still have traits that don't mix well with classical vertebrate evolution of intelligence. ...
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2answers
204 views

What would be a plausible evolutionary path for a species of marine primate?

I have been working on the idea of a mammal following an evolutionary path similar to whales, which started as semiaquatic before becoming fully dependent of its underwater enviroment. So how could a ...
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4answers
287 views

No hunger cry from birth, is it plausible?

Hunger and tiredness both take a long time to cause a human baby to cry but hunger is often the longer of the 2. Now, yes, for us humans, a hunger cry is important, even though it attracts predators. ...
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2answers
328 views

Purpose of Engineered Organic Flying Whales

This is question #1 regarding the background art of Worldbuilding.SE One of the first things I noticed when I found this site was that amazing background picture. I like to think a great story can ...
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2answers
278 views

could an animal evolve wheels, or how would animals with no biological parts move? [duplicate]

I can go into a little detail, I've researched a little online but feel my world is a slightly deviant case. I'm trying to create life on a very hot, volcanic planet: one orbiting a gas giant, and ...
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3answers
120 views

What good reason to raise an army of super-clones suffering from acute dementia? [closed]

Super-clone's specs as follows: grown from a sample of Captain America DNA. However we have engineered every clones to develop acute dementia, they will simply forget everything they have done in ...
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2answers
169 views

Are 4 arms better than 2 underground? [closed]

Are creatures with 4 arms viable underground? Creatures have to be able to climb and eventually dig! Those creatures are not intelligent. They hunt and feed on dwarfs. They were nearly extinct (100 ...
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2answers
195 views

Creating an exoskeleton/shell for a creature living on an Earth-like planet with specific properties

On a world similar to Earth in many aspects, a species exists that is partly carbon-based and partly X-based. X can (mostly) be found in the thick exoskeleton that this creature possesses. I'm looking ...
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2answers
202 views

What to do as a society if obliterated by sight of humans? [closed]

Who are the Qu? When a person dies unobserved they give rise to a being called a Qu. This has happened since the beginning of time. They have caused many of the myths of ghosts and gods throughout ...
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1answer
159 views

Hypothetical classification system for humanoidness/anthropomorphism [closed]

In the course of both working on some of my fictional creature designs and thinking about other creators' own fictional creatures, I've come to realize the utility of having consistent terminology for ...
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1answer
153 views

Can I use a living organism as exotic matter for interstellar travel?

Would it be possible to use a living organism as unobtainium for interstellar travel? Would it make any sense? The story I had in mind would use them as the main bad guys seeking vengeance on those ...