Questions tagged [bio-mechanics]

For questions about the mechanical processes that allow organisms to live, including respiration, consumption, excretion. Focus on shapes of body parts and connections between parts.

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52 views

A sentient “eusocial” swarm and maintaining communication

I've seen a question similar to the one I'm about to ask, but it does not quite address what I want to know, so here goes. I want to create an organism in which sentient individuals are actually ...
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3answers
87 views

Help With Animal Survival Rates and Understanding Adaptations And Genetics

Skippable Introduction I asked a similar question 2 years ago and never got a real answer. I was told the question was too broad or "it can be whatever you want" "magic can do anything" so I thought ...
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How would head shaping affect the ligament attachments of a gorillas skull?

After researching many head shaping cultures like the Paracas and proto Nazca it seems there is no adverse affects beyond physical. What would the affects be on a gorilla? Would it be able to function ...
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1answer
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How fast can a large animal knuckle-walk?

Start with a silverback gorilla, make it roughly three times bigger, assume it's bone and muscle structure is capable of compensating for the increased size: how fast can a thing like that reasonably ...
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2answers
112 views

Reasonably tougher humans against falls, concussions etc

My question is, how do we make humans more able to resist falls(not just free falls, also normal ones and from a "medium" height, 2-10 meters) and be able to move afterwards, at least for the jumps on ...
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1answer
77 views

Superhuman: Extreme Temperatures Pt.2

I have decided I will add my whole question… I’m new give me a bit of grace… I am creating a superhuman and I am in need of some helpful tips and answers. To get straight to the point I need to ...
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1answer
110 views

What would it take to get the temperature of the human body to rise to 3,000 °F?

I am creating a superhuman that can raise her overall body temperature to 3,000 °F (1648.889 °C) but I need to know the exact requirements of how that could happen. Let's say this superhuman could ...
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1answer
80 views

How to keep internal organs functioning within an exoskeleton suit in different gravity levels?

This question answers the issue I was wondering about of how well an exoskeleton suit could help my characters move as normal in higher and lower gravity Could a robotic exoskeleton give humans Earth ...
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3answers
276 views

So, how do I put the extra muscle, needed for flight, into a large flying creatures like dragons?

I've been thinking about this the whole day. At first I thought it was an easy fix, given my dragon's bones have a tensile strength of 3-6.5 GPa and an elastic modulus of 50-140 GPa, depending on the ...
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6answers
531 views

How could dragons effectively use their wings as weapons in ground combat?

One reason I prefer classical western dragons over wyverns is that they aren't totally handicaped on the ground. However, those forelegs are only supposed to be for better locomotion on ground and ...
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1answer
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Scaling up the bombardier beetle's chemical weapon. What would change?

There are two common quirks I keep hearing about dragon anatomy and biochemistry. The first is that dragons use lifting gases to keep aloft and breathe fire, both of which are just plain dumb. First, ...
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2answers
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How could dragons use their forepaws as hands?

So, I want my dragon to be able to do stuff like open doors and whatnot. Using the wings is kind of awkward and takes up considerable space, and because of the coronavirus, the mouth is also a no-no; ...
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263 views

Could spasmoneme muscles be useful for a living creature?

I got an interesting answer to one of my questions and I would like to know some additional info. A myoneme (or spasmoneme) is a contractile structure found in some eukaryotic single-celled ...
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7answers
681 views

Creating a scientifically semi-valid super-soldier, part 3: Physical shock resistance

Part 1 here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Part 2 here: Creating a scientifically semi-valid super-soldier, part 2: nervous system In most movies, comics and ...
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3answers
366 views

Creating a scientifically semi-valid super-soldier, addendum: Metabolism

A while back Demigan had a running series of posts about various aspects biological enhancement for the purpose of designing super-soldiers with an element of (pseudo) science behind them. You can ...
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4answers
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Lizardfolk and the problem of balance and anatomically sound tails

So, lizardfolk are humanoid (and, so, upright) creatures with reptilian features and are also part-time endotherms. They're well-adapted to living in water and on trees to a degree. One adaptation for ...
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2answers
86 views

How would Humanoid Insects Molt?

I am writing a story that has insects the size of humans, but I am having a little trouble with the biology. When you look up why there are no large insects on Earth, the most popular answer is that ...
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12answers
6k views

How can a dragon take off to the air silently?

Imagine a dragon as tall as average adult horse with a wing span of 12m long measuring from tip to tip. I wonder what evolutionary traits or techniques could allow the dragon to lift itself off the ...
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1answer
85 views

How would a dragon's neck be optimized for the most force output for the least amount of weight?

Basically I wanted dragons to be able to efficiently finish off armored opponents by chomping on one of their arm then batting them around and against hard surfaces until they're no more. If you need ...
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2answers
146 views

What kind of evolutionary pressure might lead to plants that send out a tight beam of ionizing radiation

While pondering "Can radioactive moon affect life on a planet?", I got to wondering about plants that send out a tight beam of ionizing radiation. What kind of evolutionary pressure might lead to such ...
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Dragons have a constraint on muscle mass that isn't dedicated to flight. What's the best natural physical weapon for them?

Since the dragon lives in a forest, he limits the use of his acidic breath weapon on home ground to hit 'n run, supply destruction, and a way to deter his enemies and give him a chance to escape. ...
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4answers
221 views

Feasibility of Cyborg Trees?

I'm writing a thriller story about a group of explorers who traveled to a distant planet in the hopes of finding intelligent life, when the explorers arrived they discovered a planet that was full of ...
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3answers
634 views

Pharbohydrates vs Carbohydrates

Question: Are there are any serious biological or evolutionary plausibility issues with separating the energy storage/production function from the production of structural/regulatory biomass? ...
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4answers
206 views

Can a biological system be used to power an android?

The purpose of this question is to know whether or not organic tissue can be used to power and android. Compared to a nuclear cell or an ordinary battery this doesn't seem efficient, it needs food, ...
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0answers
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A Creature Reliant on Mechanoreception to Hunt Prey? [closed]

I'm currently developing a military sci-fi concept and could use help working through some theoretical creature designs. During early concepting, the actual specifics of the creature-threat took a ...
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1answer
153 views

Are Air-Breathing Merfolk Viable?

I normally ask sci-fi questions, but oh well... It's fairly well established by this point that gills, while fine for fish, wouldn't work for mammals, as we need more oxygen than can reasonably be ...
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3answers
266 views

Is it possible to create an organism that is completely immune to radiation?

Radiation is the ultimate bane of all organic life. Its particles punch holes in our DNA, causing mutations and giving us cancer. But, is there a way to make an organism that is unable to get ...
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2answers
117 views

How can an amorphous creature change viscocity at will?

In my fantasy setting, slimes are a species of giant (about eight cubic feet), single-celled amoeba. They have the ability to freely change their state and viscocity, being able to "melt" into a ...
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4answers
251 views

How low can the density of a living creature be?

In the anime, called Attack on Titan, the primary antagonists are these huge, humanoid creatures, called titans. Titans have sizes between 15 and 4 meters. Larger titans aren't unknown, but they ...
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2answers
149 views

How strong, resistant and fast can a (humanoid) living being be?

How fast could run a humanoid being, how much damage could resist, how much weight could lift, how strong could hit, under the indicated evolutionary conditions? is there a limit? I have always ...
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1answer
130 views

How many people can a sealed 3x1x1 km biome support?

Question Context : Mars second moon Deimos has been converted into a generation ship. A considerable portion of its mass has been shaved off during the process & ejected backwards along its path ...
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2answers
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What’s the fastest possible speed a human could move in a single step without some form of augmentations or assistance?

Im new here, so go easy on me if the question is a bit bland or improperly written. I just decided to post this question since I haven’t been able to find adequate answers to this question anywhere ...
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2answers
102 views

what materials can I use to bioprint a human skeleton?

In the grim darkness of the 22,d century, there is only war. humanity has waged war on itself for decades, turning many areas of the planet into wastelands. With every decade that passes, new weapons ...
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15answers
3k views

Symbiotic benefits for large sentient bio-machine

I’m working on a setting, and have a state I want to achieve but need to come up with a compelling reason for why it is the way it is (even if no one but me ever knows the ‘why’.) I’m after a reasoned,...
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4answers
557 views

Creating a plausible death world

Could a planet's biosphere be as insanely violent a la War Against the Chtorr or Fragment? Pretty much every organism, even the plants, is omnivorous and voracious. The two biggest obstacles to this ...
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3answers
191 views

Anatomically Correct Propellers

NOTE: I previously asked the same question regarding wheels, because I thought that the answers would still help me and that wheels were more applicable to a wider audience than propellers. However, I ...
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2answers
351 views

Is a 500 kg flying creature possible?

I usually like to leave some wiggle room for myself when fleshing a concept out. Dragons make that sort of impossible, same's true for nanomachines but ripped senators are a question for another day. ...
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5answers
1k views

Humans with a scorpion-like tail?

I'm trying to create a new race of humanoids that are in appearance almost identical to humans with one exception: They have an extension of their spine protruding from their back, much like a tail. ...
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1answer
133 views

Would stronger tendons and bones allow for stronger muscles for the same weight?

Follow-up to this question: Would linear increase of a muscle's dimension increase the power as well? Let's suppose there is a genetically engineered creature that has the abilty to synthesize ...
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2answers
150 views

Would linear increase of a muscle's dimension increase the power as well?

The square-cube law applies to bodies with the same shape, and require them to be increased/decreased in all three dimensions. If you were to take a cube, with every edge being a long, and expand it ...
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2answers
208 views

What problems would arise if a species that uses wheels via electricity/conductivity instead of muscle tissue to move? [duplicate]

I've been thinking about making a species that uses wheels for locomotion. However, instead of using muscle tissue to spin them (as that would cause damage to said tissue), they would use electricity ...
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2answers
289 views

The Biology behind a slime that uses hydrofluoric acid to disable and digest prey.

So I've been working on a low magic world where magic is actually just another form of energy that can be actualized, similar to alchemy in Full Metal Alchemist. Although development has taken a ...
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5answers
439 views

The anatomy of an organic microwave generator

I have a concept for a species of arctic-dwelling organism (let’s just call it a polar bear) that evolved an organ that was able to produce microwaves, which it uses to tunnel through ice. If such a ...
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4answers
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What is the bio-mechanical plausibility of a fox with venomous fangs?

For context, I've been working on a fantasy race for use in a science fiction novel, the gist of which is essentially a red fox that has had its genes manipulated by a supernatural force with the ...
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7answers
1k views

Where would a “Magic gland” go for full-body saturation of magic?

If there were some organ, akin to the liver or a gland (I'm blanking on organ functions right now), that produces magical energy to project through the body, its various vessels, and directly out of ...
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5answers
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Fart & Furious: flatulence as acceleration booster possible?

It's the Olympics, and it'll be one the world won't soon forget. The sprinters are in position on the starting blocks, the signal is given and the runners are off! However, one man gives off a fart so ...
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5answers
327 views

Sanity check: 4D bio-wheels

In our 3D world, it is basically impossible to evolve living wheels, or helicopter rotors, or anything similar because free rotation of an axle dictates that there is no fixed connection to the body ...
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2answers
317 views

Wings for orbital transfer bioships? - The ascent

I've been looking at the altitude boosted SSTO designs from the 90s that were designed to be lifted to launch altitude by modified jetliners and thinking about bumblebees and wondering if bioships ...
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6answers
1k views

How might a purely mechanical 'voice' function?

In my world there are mechanical semi-humanoid automata. Would it be possible to make them speak in a fashion that sounds natural (i.e. human)? How might it function? The mechanism should be capable ...
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1answer
362 views

Developing a scientifically accurate species of dragon-like humanoids

I'm trying to figure out a way to make this species as I envision it while still maintaining scientific realism. I want to get it as close to "yes, this could exist in the real universe" as possible. ...