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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237 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
190 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
169 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
180 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
350 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
465 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
140 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
274 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
58 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
228 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
148 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
129 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
179 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, ...
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1answer
107 views

Subterranean Intelligent Species [closed]

So this is a species that developed on a hostile planet. The planet's sun is brutal during the day, so the creatures developed in the winding caves beneath, (which are there for another reason) but ...
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3answers
796 views

Cell division into three parts [closed]

What if cells would reproduce not by separating into two, but into three parts? This applies to all forms of life on the respective planet. Just as normal cells, the cells would separate into smaller ...
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2answers
81 views

How would a race develop specific adaptations in an area with hard, rocky soil and sturdy trees? [closed]

In my world, one of the races is from a part of a continent with dense, rocky soil and large, hardwood trees. Their whole culture is structured around establishing sturdy foundations and permanence ...
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61 views

Dangers of meganeura sized dragonflie for child sized humanoids [closed]

Would a dragonfly around the size of a Meganeura be a concrete danger for a humanoid about a meter (3'3") tall, weighing around 15kg (33lb)? This dragonfly wouldn't have particular evolutionary ...
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88 views

How can 4 limbed animals evolve from 6 limbed animals? [duplicate]

An idea that I've been having to logically explain the evolution of 6-limbed animals is that they naturally have a common ancestor. This is illustrated in this picture I found: Source: Birvan from ...
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1answer
121 views

A different flavor of zombie virus [closed]

So I have a zombie outbreak in one of my stories, not a full blown apocalypse mind you, but a few hundred zombies. Now since this story features super humans, regular zombies stand an even worse ...
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93 views

How big would an 11 year old's wings have to be to fly? [duplicate]

Would it be possible for a 11 year old to fly with a pair of wings? If so, how big would the wings be? (Width, length, shape, etc)
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274 views

Anatomically Correct European Dragon [duplicate]

In the modern period, the European dragon is typically depicted as a huge, fire-breathing, scaly, horned, lizard-like creature; the creature also has leathery, bat-like wings, four legs, and a long, ...
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78 views

What biological changes would have to be made to make a flying human/bird hybrid (harpy) [duplicate]

Obviously you need to do more then add wings to a human. What biological changes would have to be made to humans in order to make a harpy that could fly ( or at least glide.)
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99 views

Is it possible for a creature to have bulletproof skin? [duplicate]

Is it biologically possible for a creature to have bulletproof skin? Note: To qualify as a bulletproof, the skin must be at the very least able to withstand small arms fire. Perhaps I didn't make ...
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2answers
153 views

How would you improve the hand? [closed]

I'm talking about a saurian-like carapaced creature. No changing parts (retractable, etc), and no bendy parts (because carapace). It needs to do almost anything well (but not great).
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1answer
223 views

How can I explain a unicorn that shoots spinning horns? [duplicate]

I am designing a horse with a drill bit shank on top of its head that act as a projectile, my question is what mechanism(s) would be possible for a horse to evolve so it can snipe anything without ...
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3answers
339 views

Is it possible for a life form based on dark matter to exist? [closed]

Is there any possible way for alien life to be based on a dark matter biochemistry or at least be dependent on it in some way? To clarify things: I am trying to base this on what is currently known ...
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374 views

How is petrification by venom scientifically plausible?

In my book series (link here), there is a character named Rhys. Rhys is a highly mutated wasp whose mutation gave him the following benefits: His armor is immune to most of the medieval-style weapons ...
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4answers
456 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 ...
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2answers
821 views

Anatomically correct vampires

Part of the Anatomically Correct Series. I think we’re all familiar with the traditional vampire: pale skinned, blood suckers that drink blood through their fangs and have an aversion to sunlight and ...
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6answers
433 views

How can pacifists creatures protect themselves without becoming the aggressor?

Consider a world where the majority of creatures behave with might-makes-right rules. How could a pacifist race adapt its biological defenses or its society over years of evolution to protect ...
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3answers
383 views

How does a dragon evolve to harness energy from nuclear source?

Caveat: No cold fusion! Questions Q1: Where can my dragon source for nuclear energy on Earth set in medieval age and how does it convert this energy for fight or flight? Difficulty:⚠ Q2: How can ...
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3answers
430 views

A proper latin name for an alien creature [closed]

I am designing an alien creature, an oxygen breather on an Earth-like planet. These creatures have a crest on their back that changes color according to the mood in which they are. That crest is a ...
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2answers
318 views

I was wondering about giants. About 40km tall

Would it be possible to have a giant, made of stone for example, that would be 40km tall? Would the earth or even his legs be able to hold him? And if not, what would be the tallest plausible height ...
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4answers
251 views

Proud warrior race with terrible depth perception. How do they look?

I was working on a science fiction story with a variety of alien species. Most of them seemed entertaining and plausible enough, but I got stuck on one particular species that I could use some help on....
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2k views

How would a species similar to the Rito from BOTW evolve?

When I played Zelda: Breath of the Wild and met the heavily redesigned Ritos, I took an immediate liking to their designs. Although the fact that they're fully bird-like helps, it's mostly because of ...
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2answers
155 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
105 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
176 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
194 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
160 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
227 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
298 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
239 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 ...