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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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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
192 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
156 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
412 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
264 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
199 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
206 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
279 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
171 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
162 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
154 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 ...
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1answer
86 views

Genetically engineered Moray Eel?

Is it conceivable to genetically engineer a moray eel large enough to hunt and eat humans in its cave like habitat? It needs to have: armored skin that can withstand gunfire good all around swimming ...
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4answers
165 views

Finding the right opponent for adventurers [closed]

Turns out, creating a species of essentially immortal humans with the minds of hardcore World of Warcraft and D&D players was a horrible idea. To prevent these vile parasites from destroying all ...
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4answers
135 views

Physiological way of producing Optical beams of heat

I have an alien race that can emit beams of heat from their eyes. Is their any way this can be produced by means of a highly evolved organ? If so, how would this organ work?
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1answer
116 views

What are the best predators to spark intelligence in these aliens? [closed]

I want my aliens to have some very interesting adaptations, but with these adaptations comes the question "why do they even need intelligence in the first place?". My solution to this is predators. It ...
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2answers
142 views

Humanoid with inverted internal temperature [closed]

Anyone have any thoughts on a humanoid that had a low, perhaps even cold, internal body temp and how it might regulate that? Also, would it make more sense to have said humanoids natively be from a ...
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1answer
301 views

Reasons and advantages to this form of sexual dimorphism

I want to have my aliens have a culture that clashes with human modern culture and one way I want to achieve this is having some extreme sexual dimorphism. For these aliens the sexual dimorphism is ...
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1answer
219 views

How does a herbivorous mermaid species without gills and swim bladder stay underwater its entire life?

Fish breathe through their gills by extracting dissolved oxygen from the surrounding water and most bony fish species have evolved swim bladder to help them maneuver the sea effortlessly. How do the ...
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4answers
314 views

How could a 10m tall giant swim across a freshwater lake?

Suppose we scale up a human to about 10m in height and their skeletal structure have evolved to ensure they won't succumb under their own weight. Due to their unique blood circulatory system they can ...
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2answers
231 views

How to design Hobbit to colonize extreme planet?

A Weyland-Yutani like conglomerate wants to colonize exoplanet in the habitable zone of the orange dwarf 0.75 M of the Sun. The planet has 2 X Earth diameter 3g surface gravity atmosphere 92% ...
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2answers
208 views

How would evolution unfold if the only land was underwater caves [closed]

Let's say that Earth forms having no land, only underwater cave systems, on every level of the ocean. How would evolution unfold? How would fish evolve to live in small to large lightless caves? What ...
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3answers
229 views

Need help with details concerning non-conventional sci fi vampires

I would like to create a sci fi human faction that resemble vampires without many of the past tropes while reimagining some for a sci fi feel. I would like to avoid any magic and fantastical abilities....
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2answers
185 views

What could be a physiological downside of a permanently bonded symbiotic life-form that alters the host in profound physical ways? [closed]

PREMISE: A symbiotic lifeform permanently bonds with its host and radically transforms the host organism. BACKGROUND INFORMATION: Imagine a symbiotic life form like the [Klyntar](http://marvel ....
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1answer
164 views

Hive Minds - Part 1: Genesis

EDIT: As suggested by L.Dutch, I turned the original post into a series of its own. Some Context A "Hive Mind" is an aggressive type of shared consciousness (for more information on shared ...
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1answer
177 views

Adapting organs, How would they adapt?

Okay so I get that for flexibility I need no bones. My octopeople do live on land so they do have lungs. But they are more amphibious than we are. So here is my proposed life cycle: Pregnant ...
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3answers
206 views

Developing a society with no military or defense force [closed]

Would it be outside the realm of possibility for a species to develop with no major species competition for land/food and grow into a society of peace and cooperation? I've been trying to develop a ...
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2answers
342 views

Anatomically Correct “Giant” Insectoids [closed]

There are a lot of giant insects and arachnids in fantasy and sci-fi. The understanding of why this is impossible on a world with Earth-like conditions is pretty universal: ineffectiveness of blood-...
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3answers
461 views

What would a martian bird look like? [closed]

Assuming that Mars held an atmosphere capable of supporting life (and always has), what would a martian bird look like when compared to it's earthen counterpart? The gravity difference remains the ...
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2answers
2k views

Could the existence of a kaiju (giant monster) be justified by anything besides magic? [duplicate]

Would aliens be able to create one using sufficiently advanced technology (perhaps sufficiently advanced biology or materials science) or could a kaiju that doesn't call the gravity-less vacuum of ...
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2answers
139 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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1answer
133 views

How could monopods evolve? [closed]

In Wayne Barlowe's book Expedition he has some creatures who have become monopods, or only having one foot. They use it to hop through the dense air. Since the author never really got into the details ...
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3answers
271 views

How could can humans evolve to have reptilian attributes?

In my world, all of my demihumans have evolved from the same ancestor from modern humans. This conceptually includes my version of Reptilians/Lizardfolk. For the most part I would have them share the ...
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1answer
108 views

What muscular changes would a different hand structure require and what would be the benefits?

One of my characters has hands very different to the ones we're used to. His fingers can close towards both sides of the hand, meaning that the back of his hand is also a palm and he has a second ...
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1answer
57 views

Could reincarnation entail something like Star Trek's “symbiont”? [closed]

The mind-body connection could lead us to conclude that both the mind and the body, inter-connected, might contain past life memories. Under hypnosis and even not under hypnosis, many people have ...
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3answers
227 views

Society effects of reproduction for Noukuulneimians [closed]

A species that starts asexual juvenile. Grows to become a mature asexual with time. The time is probably similar as with humans. A mature asexual becomes female or capable of producing eggs when ...
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3answers
252 views

Can we create a biological version of humanoid robot that don't carries DNA?

It looks human, feels human, can walk and run like us and can even argue with us, but it do not possess DNA. Is it possible to create this homunculus?
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2answers
214 views

Dwarf raising a battalion of dinosaurs [closed]

Set in alternate parallel universe where reality mirror ours with one big exception, the cunning dwarfs. The male adult is less than the length of an iPad but weights 50Kg, their technology is far ...
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1answer
147 views

What is the maximum equilibrium temperature that a mammal could evolve to tolerate?

Mammals live in some fairly extreme environments, but the most heat-tolerant ones all seem to cheat: e.g., they dig burrows to stay cool during the day and come out at night, avoiding the heat, or ...
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1answer
128 views

Intelligence development: Plausible?

This is another question about my aliens who have both reptilian and mammalian characteristics. Now, I'm not talking about developing intelligence on evolutionary time scales but rather within ...
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1answer
116 views

Flora Ecology on a M-Dwarf Planet with Slow Rotation [closed]

I'm building a world for an artistic project, and I'm struggling a bit with how the photosynthetic organisms would likely be different from Earth's plants. I'm not looking for wild idea generation, ...
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1answer
177 views

Morphology of the nine tailed fox

Needs ideas for the reason for the different sizes for ninetailed foxes i Made up. . The Korean kumiho is sexual dimorphic as the males are big as a coyote while the vixens are as big as a red fox, ...