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
78 views

How does a dragon with plated tongue hunt?

Beyond the thick forest lies a colossal winged flightless dragon with a unique distinct feature that is its plated tongue! According to legend it seems to prefer diseased humans and animals that are ...
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7answers
1k views

Why would dragons have plated bellies?

Dragons are often depicted with a set of plate-like scales along their belly like a snake. In snakes, this adaptation is to aid in their slithering locomotion. However, dragons don't slither; they ...
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1answer
278 views

How to explain a reindeer's nose mimicking a police blinker light when it senses danger?

There is an odd species of creature with striking resemblance to a reindeer called Rudolphie, it has a red hue on its nose due to constant exposure to the cold condition of Arctic tundra and being ...
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2answers
122 views

Could this gill system realistically develop?

Often, aquatic humanoids and other species are depicted with a set of shark-like gills in the side of their chest. Specifically, the gills and gill arches would replace the lungs and ribcage under the ...
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2answers
94 views

Ecologically Correct Juvenile Phoenix

The phoenix is a bird that closely resembles a large eagle, but is distinguished by its life-cycle: Rather than laying eggs, they produce 2-3 small worms as they die and burn up, which feed on their ...
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1answer
120 views

Strong flying creatures

I'm in the process of creating flying animals big enough to carry a human being on their back, the problem is that if it's too big, the wingspan also has to be and muscle will be needed for the wings ...
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3answers
134 views

Aerosoleans - How much do they eat?

Aerosolians or 'loopies' live on hypersonic trains. They stick to the sheetmetal and collected microbes from aerosols captured by tiny pockets in their skin. Because of the high speed they can collect ...
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2answers
100 views

Igniting a Dragon's Fire

I'm in the process of creating a plausible fire-breathing dragon, halfway there. The dragon has glands that allow it to produce a flammable oil from the fat of the animals it eats. To light the oil I ...
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1answer
55 views

Would lungs be necessary for levitating gilled animals?

The dragons of my world are serpentine fish-like animals with the ability to manipulate gravity They have gills like bony fish, which they can keep in a state of apparent freefall to prevent collapse. ...
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3answers
82 views

Ice Dragon Breath

I was thinking about creating an ice dragon for my world, but I didn't want the dragon to be magical or technological but biologically correct, so I went looking for cryogenic substances and found ...
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2answers
79 views

How can salamander-people look like salamanders?

Salamanders, like lizards, seem to be quite indistinct. They have very few traits that both distinguish them from other creatures and would be compatible with a typical humanoid being What visible ...
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2answers
137 views

Obtaining laser

I did some research on electric dragons and found a post asking about it, in it there was a answer that mentioned an apparently chemical laser used to ionize the air and allow the electric discharge ...
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4answers
120 views

What would make a species of sentient starfish rationally and ethically choose between sexual and asexual reproduction? [closed]

Starfishs or seastars have sexes( they are either male or female) but they can reproduce both sexually and asexually. The latter is possible using fission or fragmentation. In this planet there is a ...
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2answers
94 views

Could the dna/gene stealing abilities of bdelloid rotifers be feasibly scaled up for larger creatures?

To summarize the bdelloid rotifers, they have genes in their dna that have been incorporated from other kinds of organisms which have also given them functional/useful adaptations. I want to design a ...
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1answer
82 views

Anatomically correct amphisbaena

Amphisbaena is a creature from greek mythology. It is a snake, with another head at the end of its tail. I have a world in which I'm adapting various dragons to be scientifically viable. I've already ...
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1answer
38 views

Can a creature who uses anguilliform swimming swim in an up and down motion like cetaceans?

I am working on a xenobiology biosphere project, and I have a clade of creatures who evolved in the wetlands. They are disconnected entirely from life on our world, although they follow the same ...
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1answer
85 views

What kind of sounds would a creature from the void make? [closed]

For a place I call The Void, its a place filled in darkness with no elements on the galactic periodic table, what sounds would it have? Especially the entities in the Void called VoidSpawn being ...
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1answer
51 views

What elements/compounds would be in the body of an alien living in this specific set of environmental conditions?

What elements could be in the body of an alien that lives under these conditions? 5/16 of the atmosphere contains sulfur (1/16 hydrogen sulfide and 1/4 sulfur dioxide) High quantities of sulfuric ...
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2answers
87 views

Are boomalopes possible? aka a species that produces a flammable fuel?

I was inspired by this creature in a game called rimworld the creature when killed explodes and leaves a fireball ,and a corpse , when it does. The sacks on it contain a liquid that can be used as ...
4
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1answer
160 views

Could this centaur anatomy work and fit together?

The centaur externally appears very human-like. Their forelegs are humanoid but with a horse's hoof on the end. They also have human-like hips to support the forelegs. The horse body is similarly ...
3
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1answer
63 views

Is my dragon's fire plausible?

The dragon, through a gland, produces a flammable oil from the fat of the animals it has eaten, the oil is stored in a bag, the blood circulation around the bag increases, heating the oil to the point ...
2
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2answers
114 views

Can a creature have possible locomotion if the legs are positioned in a x formating to the pelvis or this symbol ><

My alien creatures are arthropods: multiple limbs, segmented bodies, etc. Is it possible for them to walk if their legs are placed in a x formation in thier pelvies or similar to the shape of this ...
2
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1answer
114 views

Could a fish lie horizontally with an air-space in its head?

The polyp-fish is a soft-bodied sea-creature about a foot long. It has in its head an organ that forms an inflated air-space filled with gas, which makes the head appear hard and round. The rest of ...
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4answers
748 views

is it possible in a given world to ride a triceratops and so how would it work?

I've been thinking about this world that's been in my mind and one of the things in it are drake knights which are warriors who raised and ride domesticate breed of triceratops like the war elephants ...
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1answer
111 views

Can avian and humanoid shoulders be combined in a way that allows flight?

It is easy to put avian and reptilian shoulders on the same frame. Unfortunately, humans are mammals (apes, in fact), not reptiles, and hence our shoulders are very close to our backs, heavily ...
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1answer
128 views

What would be different in the brain of a being that lives hundreds of years allowing it to have enough memory space?

So I’m trying to create a race of alien that lives for 600 years but I need them to have the memory space for all that time. The human brain can hold approximately 300 years worth of memory and that ...
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1answer
76 views

How should a balloon alien’s gas bladder work?

How do floating aliens work? They are portrayed as having a large gas bladder or sack that keeps them neutrally buoyant while they propel themselves through the air. A notable example of this is ...
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2answers
105 views

Would low-mounted wings work for animal flight?

The dragons of my world, like many historical dragon depictions, have their wings attached to the lowest part of the body, similarly to many planes. This is in contrast to all real winged animals, ...
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1answer
30 views

Molecular ecology for endogenous formamide formation?

Kind of a follow-up to this earlier question: How could formamide lakes form on an exoplanet? Suppose the problem of how to get an initial quantity of formamide is solved, and microbial life has ...
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6answers
2k views

Parasitoid wasp targeting humans: which tissue would they target?

Parasitoid wasps are kind of a nightmarish bug: they lay eggs in their target, usually a caterpillar; the eggs hatch and the larvae grow inside the body of the target, feeding on non essential tissue ...
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1answer
96 views

Would it be possible to create a humanoid that outputs fire from it's skin [duplicate]

Many stories [especially stuff like manga or anime] contain characters with the ability to output flames from their skin. This would require heat resistant skin while still outputting said flames / ...
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2answers
180 views

Plausibility of creatures whose main form of movement is rolling around

There are a few works that have creatures in them that form some sort of ball out of themselves and then roll around in a much more willfull and directed manner than the rolling at the mercy of ...
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2answers
129 views

Would having prehensile feet with finger-length toes impair running, walking, jumping, or other foot-based activities in a human?

Exactly what it says on the tin: would having prehensile feet with human finger-length toes impair running, walking, jumping, or other foot-based activities in a human? Presume that, when carrying out ...
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1answer
98 views

How good is a magnetite sand defence really?

I've been considering filling my alien world with a plethora of magnetic creatures, all of which use magnetism in unique and creative ways. Of course these creatures are only going to be one genus, ...
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8answers
530 views

What needs to be changed in the structure of the human brain to make it as smart as possible?

I have been writing a book for the last eight months ( at the moment I have already written 174 pages ) about anatomically plausible superhumans (a new kind of person who would have to surpass us both ...
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1answer
67 views

Thunderbird Questions: Insulator

Introduction: I posted a while ago about a lightning dragon and one of the answers was really interesting. The answer, in this case, is from Mr Adrian Colomitchi, it was very detailed, but I still ...
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1answer
170 views

Why would a creature need a rib cage that can split open?

Aside from making it hard for surgeons to operate, the rib cage is essential. It’s a calcium battery, frame for our muscles and protects our organs and bone marrow. Ribs by themselves (like in snakes) ...
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2answers
132 views

Might this animal be able to fly?

This animal is a hybrid creature with a strange form that seems incapable of flight They have a streamlined, mammalian head, and the neck is long and flexible like a bird. However, it is much thicker ...
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6answers
5k views

Can I Domesticate [X]

Worldbuilding generates a lot of "Can I domesticate [insert real or fictional creature here]" questions. This is intended to be a canonical version of that question. I'll self-answer, but ...
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1answer
76 views

Could arachnid-like animals exist at large sizes? [duplicate]

Could an arachnid-like animal realistically exist and survive at larger sizes? The specific dimensions are 2m tall, around 1m wide in the torso, and 3m long An arachnid-like animal, for the purposes ...
4
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4answers
784 views

Can feathers be used as a natural defense mechanism?

In some fantasy-themed games, feathers are sharp enough (I'm guessing through magic) to be used as daggers. This idea of using feathers as weapons inspired me to create a creature that would be able ...
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1answer
100 views

Is it possible to go from tree climbing to hiding in sand like some sandlions do

Is this evolutionary path possible with this creature because I don't know what would be in order to go from a creature that lives in the trees to living in a treeless environment. I had an idea that ...
6
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2answers
408 views

Are these alternate "ears" realistic?

In my world, creatures evolved in the twilight zone of a tidally locked planet. Naturally, because there is little light, creatures either increased their light sensitivity or turned to other senses, ...
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1answer
121 views

Anatomy of an animal with one foreleg [closed]

The animal is a tetrapoid, and has a single foreleg placed medially (in the sagittal plane) with two fully tetrapodal hindlegs. The internal anatomy, at least regarding the muscles and bones of the ...
2
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1answer
134 views

Could my Dog-Turtles exist?

Dog-turtles are a species of Sauropsida from the Archelosauria clade, and from the Testudines class. They are a Koopa pastiche (Koopas are from Nintendo's Mario) (Koopas are themselves a Kappa ...
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1answer
129 views

Using winged-quadruped anatomy for many-winged fliers

There are many depictions of winged quadrupeds (tetrapods with 4 legs and wings as well), such as griffins, dragons, and Pegasus. Often they have a rather plausible-seeming shoulder anatomy Could this ...
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2answers
124 views

Biological Electrolaser

I was researching about electric dragons whose electric breath can be explained scientifically, and I found this post(Plausibility Check: Is it possible to make a lightning dragon plausible?). In it ...
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1answer
83 views

The effect of extra limbs to an alien creature's speed

In my world I planned to have "creatures" capable of running at ludicrous speeds when compared to anything based on earth biology. However when researching about how animal movement and ...
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3answers
92 views

How might parrot's feet change if they adapted for semi-aquatic life?

I'm creating a fairly whimsical kid's fantasy world, so I don't need 100% accuracy- however, one of the major themes is respect for the environment (and spec evolution is a big interest of mine) so I ...
4
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3answers
107 views

How does the Carnifowl hunt?

The carnifowl is a bird of a unique shape It is about 50cm long, with a wingspan of 110cm and legs only 5cm long. Its front half (chest, wings, beak) is like an eagle, though the head is feline and ...

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