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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8
votes
5answers
279 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 ...
8
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2answers
290 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 ...
8
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1answer
118 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. ...
9
votes
4answers
797 views

Is a reptile with diamond scales possible?

I thought of a concept for a dragon or similarly gigantic reptile with a special adaptation, in which they’re born with scales made almost entirely of carbon. Then, over an incredibly long life cycle, ...
10
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6answers
2k views

Biology of a Firestarter

Biologically speaking, what would be the best real world explanation for a pyro, torch, fire-starter type mutation. Leeching heat energy from the environment might freeze dry your surroundings. ...
11
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3answers
2k views

How can dragons propel their breath attacks to a long distance

So if you remember my dragons: They aren't that big (roughly a shire horse in size, but a longer neck and a tail) They use graphene in their bodies, which might or might not explain how they fly They ...
11
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5answers
448 views

What minerals that are more durable than calcium would be suitable for bones?

Edit: I am asking in the context of alien life, should have specifyed that to begin with. I have many ideas for fantasy/sci fi races, and one that I kept coming back to is a species with bones that ...
6
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8answers
262 views

Could a medium sized mammal in the order carnivora evolve to be bipedal?

In the movie Guardians of the Galaxy (and a few others), we meet a bipedal raccoon known as Rocket (who I am aware did not evolve to be bipedal, but I am using him as an example). I honestly love the ...
3
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1answer
198 views

Where would padding inhibit a limb's movement the least in a quadruped creature?

Of the six limbs of classic dragons, the forelegs always stuck out like a sore thumb. They're dead weight in flight, etc... However, since in my setting you can find any sort of armament, short of a ...
4
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2answers
594 views

Can my heraldic dragons fly?

Heraldic Dragons Heraldic dragons are the creations of a mad god, called Anon, designed after the classical six-limbed ones. Measurements: Head+neck length: 180 cm Body length: 180 cm Height at ...
8
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6answers
460 views

Would it be possible to rearrange a dragon's flight muscle to somewhat circumvent the square-cube law?

The square-cube law holds true only for objects that are similar. In evolution, you can't make big leaps forward, but since most fantasy worlds are created by gods or people who think they're gods, I'...
8
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5answers
216 views

Living nests for insects - Part 1: Optimal Hive shape

I've been playing with the idea of living nests for insects for a while now to help populate my worlds. The idea is that they don't build a static nest out of wood pulp and other material but have a ...
15
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4answers
827 views

Dragon forelimb placement

Most dragons (before Skyrim and GoT) had six limbs in total, four legs and a pair of wings. The question is how would a dragon's forelimbs be placed? It's obvious they have good terrestrial ...
5
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2answers
166 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 ...
4
votes
1answer
121 views

How can I increase wingbeat frequency for large flying creatures?

Flapping flight bumps into a size limit after a while because of wingbeat frequency. My knowledge on birds is rather limited, so here's how I interpreted that: A longer wing is a longer lever -> ...
3
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0answers
80 views

Monsters vs You /Dragons/ How to give them better resistance against firearms [duplicate]

Before we start, no, I'm not stupid, I know that I need this, agility and magic together to level the playing field, but one at a time. As I mentioned before, dragons can synthesize, break down, and ...
48
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15answers
13k views

What injury would be of little consequence to a biped but terrible for a quadruped?

Let's imagine a group of people who can turn from human to wolf at will. Wolves are quadrupeds, and humans are biped, so I guess their weight is differently shared in their body, notably when they ...
3
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4answers
167 views

Can you create a living vehicle fueled by organic material?

In this world, the vehicles are effectively re-engineered insects; enlarged bio-manufactured nervous systems used instead of engines; factory grown lightweight chassis / [wheels]. The fuel station ...
7
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2answers
242 views

Giving dragons more flight muscle

Okay, we know the type-IIb FG muscle fibers are the strongest stuff we can use. So, the only thing we can do is attach more, but how? Dragons are 180 cm tall at the shoulders with a total neck+head ...
0
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1answer
226 views

Would these structural reinforcements improve dragon wings?

So, I have devoted an unhealthy amount of my time to the dragon question, and a final solution will have to wait... for several thousand years at least. My original plan was to make them at around ...
0
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2answers
176 views

Realistic (sci-fi) ideas on how biological mind control could be possible through a virus infecting a person?

I've been trying to reimagine vampires using sci-fi science to explain the more traditional vampiric abilities. So far I'm quite liking a rabies-like virus to explain biting and regenerative rest. I ...
10
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4answers
2k views

Could 'robotic' prostheses be possible in the victorian era?

In my world I would like to have a cyborg-inspired veteran, but am not sure what kinds of prostheses would be possible, ideally without the use of electrics. My main concern is how the prostheses ...
6
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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 ...
2
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3answers
209 views

What kind of biological characteristic does a human being need to achieve great speeds?

In my book there is a tribe and one of the characteristics I describe is that they can achieve great speeds, something like 80km/h (50 mph) for 2 minutes approximately. How could it be?
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7answers
656 views

Noah fails his mission - what would Earth look like today and in the far future? [closed]

Assume that everything in the Bible is true up to the point when Noah built his ark and the flood came. This happened in 2348 BCE. Unfortunately the Ark was badly designed and sank almost ...
2
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1answer
150 views

Controlling Nanobots in the Bloodstream as a Form of Torture?

An oppressive government entity roughly 70 years in the future has access to elite--albeit experimental--technology. One such technology is a brain chip that allows its soldiers to control simple ...
6
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2answers
344 views

Dragon flight muscles

So, Mark Witton had a lengthy article on why paleontologists think the Quetzalcoatlus northropi could fly. One interesting thing about it is that Witton and Habib think the Quetzalcoatlus had a 90-...
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1answer
137 views

How much pneumatization is possible? [closed]

So, one of the most common theories about how dragons could maybe still fly, the living gasbag theory. Basically, most of the dragon is a cavity filled with lifting gas or air, in order to reduce its ...
3
votes
3answers
182 views

How could dragons run?

You already know the drill: Dragons stand 195 centimeters at the withers, normally 2,95 meters at the top of the head when standing still They can't fly They weigh: 1179 kilograms You're not allowed ...
17
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4answers
4k views

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 ...
4
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1answer
421 views

Would wide hips be a wiser evolutionary trait for digitigrade, biped humanoids?

I was asking a deviantART.com artist why they often draw their anthros and furries with wide hips regardless of gender, and they told me this (copypasting): "I'll see if I can't whip something up for ...
5
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2answers
195 views

What would the size constraints on my creature be?

Context This creature right here is one of the decedents of placoderms that that transitioned from rivers to land. The got onto land during the Middle Devonian and remained isolated from all other ...
6
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5answers
431 views

Why would a biped evolve into a monoped?

Say that you have a medium-sized, bipedal, vertebrate-like creature. It no longer has the need to have arms, so they atrophied until they disappeared entirely. Now imagine an animal that shares ...
1
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1answer
140 views

Biological padding?

Designing living creatures is hard, so I came up with a generalized idea to speed up the process in the future: Biological padding is a spongy structure made of spider silk and filled with either ...
8
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2answers
195 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 ...
7
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4answers
232 views

Are Extraterrestrial's pagoda trees plausible?

In the National Geographic mini-series Extraterrestrial or Alien Worlds, they featured a hypothetical gas giant moon called the Blue Moon. The Blue Moon orbits a binary star, has a very dense ...
4
votes
1answer
138 views

Would a nictitating membrane, eyelid AND eyelashes get in each other's way in the same eye?

Or would that eye be the most well-defended from external debris and whatnot in the entire world? Cats seem to get by just fine without eyelids and a membrane but no eyelashes...likewise humans with ...
1
vote
4answers
245 views

What could a person able to re-arrange their muscle strength accomplish?

Suppose there is a type of person who is otherwise a normal human, but can temporarily transfer muscle strength from one part of their body to another. Whether this occurs through mutant genes, ...
5
votes
2answers
348 views

What is the best body plan to allow for giant size in a terrestrial animal?

My question is rather simple; assuming optimal atmospheric and planetary conditions, what body plan would be able to support the largest plausible land animal? To split the above question into a ...
2
votes
2answers
240 views

Creating a scientifically semi-valid super-soldier, part 9: Temperature control

Previous questions here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Creating a scientifically semi-valid super-soldier, part 2: nervous system Creating a scientifically ...
8
votes
4answers
414 views

Creating a scientifically semi-valid super-soldier, part 8: Communication

Previous parts here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Creating a scientifically semi-valid super-soldier, part 2: nervous system Creating a scientifically semi-...
19
votes
5answers
4k views

What would be the disadvantages and advantages of having four fingers instead of five?

Animated creatures generally have four fingers (including thumbs). In a real-world context what physical possible consequences would result in having only four (or 8) fingers? Physiologically, what ...
5
votes
4answers
171 views

Using science, how could an animal achieve lift/flight by using pressure?

Say for instance we had a humanoid creature. how would they achieve flight by taking in a gas then expelling it at a greater pressure from a point on their body like the feet, back, or hands?
4
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2answers
157 views

What would be the physiological/anatomical adaptations of a 50 metre sea serpent?

In my last question, How large could my sea serpents be?, I asked what length would be a) possible and b) necessary for a whale-eating sea serpent. My sea serpent is a constricting predator* in a ...
2
votes
1answer
124 views

Feasability of having a voice modulator bioengineered into vocal chords?

I'm writing a story and I was wondering on the feasibilty of having a set of bio-engineered vocal chords that would have a voice modulator built in to help disguise the characters voice, would it be ...
8
votes
2answers
355 views

Are my wing-walking griffins viable?

This is the third question in a series of such for my worldbuilding project that deals with plausible fantasy creatures. Previously, I have pondered cockatrices and hydras, but now we move on to ...
2
votes
3answers
1k views

Creating a scientifically semi-valid super-soldier, part 7: Hearing

Previous parts here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Creating a scientifically semi-valid super-soldier, part 2: nervous system Creating a scientifically semi-...
0
votes
1answer
203 views

Anatomically Correct Opticoid

Description An Opticoid is an alien species from the tv series Ben 10 and is named and known for having green eyes with slits all over its body except for its head where there are two large bat-like ...
0
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1answer
81 views

non muscular rapid color changing

I have this alien race of amoeba-like creatures about the size of humans with the ability to morph their shape and move by constantly making and dissolving muscles by manipulating their membrane and ...
13
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6answers
492 views

Creating a scientifically semi-valid super-soldier, part 6: Radiation protection

Previous parts here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Creating a scientifically semi-valid super-soldier, part 2: nervous system Creating a scientifically semi-...