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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Is this super soldier viable and grounded?

Below is a excerpt of a set of notes that I have compiled that is the basis for a science fiction story that I am writing. I have spent a fair amount of time trying to come up with a close/hard/sci-...
TheWookieeBreath's user avatar
3 votes
1 answer
123 views

How could a Massive Animal Thermoregulate?

In my world, there are massive vertebrate creatures that live on the planet's savannahs and rainforests. Alongside others that live in the frigid south pole and deep in the ocean trenches. I'm ...
New_Archaeoceti_325's user avatar
7 votes
7 answers
2k views

How can I make two hearts work?

It’s an occasional trope in sci-fi where warrior species get two hearts to better survive combat. Like the Star Trek Klingons (apparently), Halo Sangheili and the 40K Space Marines. However, two ...
Demigan's user avatar
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9 votes
6 answers
3k views

Could medieval agriculture develop without soil?

In a water-world where the only "land" are the floating, rotting corpses of titans, how would a medieval civilization develop agriculture? Since they are of medieval technology level, ...
Unhappymarshmellow's user avatar
4 votes
2 answers
101 views

Viability of heated plants via fission as a power source

This is something I haven't seen before, so it might not be viable, but still, I'd like to put it out there A biological organism takes in radioactive material, encourages it to undergo fission, the ...
MegatheriumMegafauna's user avatar
1 vote
2 answers
143 views

How do camouflage plates know what color to change to?

How could organic adaptive camouflage be implemented into materials implementable by humans? I have already developed a general system: the system is made of small plates that form larger plates. each ...
alkahest's user avatar
  • 1,151
4 votes
2 answers
514 views

Could alkaline digestive system work?

So a human digestive system is generally acidic, especially at the stomach part, when it goes down to even 1.5 pH. Similar things must be happening in other mammals and to an extent, probably in all ...
Yulian's user avatar
  • 452
7 votes
3 answers
329 views

High Gravity Giant Shell

I am designing a genus of eusocial, high-temperature, extraterrestrials from the planet 61 Virginis b. They are based on tungsten chloride and use sodium chloride as a solvent. This species has ...
Amoeba's user avatar
  • 3,743
6 votes
1 answer
150 views

How much would raptor-like talons on the hands affect tool use?

Imagine you had a race of "fantasy bird folk": Humanoid head, torso and limbs down to the ankles/fingertips wings from the back (implausible for flight, but irrelevant here) bird-like (...
Benjamin T Hall's user avatar
2 votes
3 answers
168 views

To what are humans from one world allergic to humans from another? [closed]

Assume that there are two types of humans. One is your bog standard Earth like. The other is slightly biologically different. A few extra glands and hormones, maybe even an extra organ. The ...
FIRES_ICE's user avatar
  • 3,153
3 votes
1 answer
168 views

How much diamagnetic levitation can a human handle?

One of the limitations to human space travel is acceleration limits. We'd really like to just shoot spaceships out of a cannon to 99% the speed of light, but the resulting pressures on the human body ...
Christopher King's user avatar
4 votes
2 answers
183 views

How would a bioengineered warbeast get energy from fossil fuel products?

In the somewhat far future, mankind has become fairly adept at wet nanotechnology and synthetic biology. Allowing them to not just modify what exists in nature, but build beyond it with almost ...
AllSeeingEye33's user avatar
7 votes
3 answers
1k views

What is the Nutritional Value of Earth?

This is Timmy. It’s a massive planetary eating monstrosity (don’t ask about Timmy), who likes to target inhabited planets. On this occasion, Timmy has chosen to feed on earth. What would the ...
Blue Skin and Glowing Red Eyes's user avatar
3 votes
6 answers
117 views

How do my genetically altered people survive a smokey environment?

I have a world heavily polluted. A war long ago sustained by automated factories has kicked up a significant amount pollution and debris into the atmosphere. This has caused a permanent mist/fog of ...
FIRES_ICE's user avatar
  • 3,153
2 votes
5 answers
203 views

What is good Armament and Protection for a Quadruped Mecha? [closed]

I have been looking for real robot models for a long time to create a realistic mecha for my story. I decided to model Peace Walker from Metal Gear and a quadruped robot with wheels that I found on ...
BlankFrame's user avatar
3 votes
6 answers
247 views

Why is my organic computer the only thing capable of manipulating my special particles?

I have a few fictional particles in my setting that can do many things, however getting them do something specific is the challenging part. There are a class of particles that only work while in the ...
FIRES_ICE's user avatar
  • 3,153
2 votes
3 answers
589 views

Is an "catfish-like" armored skeleton system still practical at larger sizes?

Essentially, I've been trying to make a world of arthropod-like creatures, but as a result of that, the more I researched arthropods, the more I understand the limits their structure has on size. ...
ProjectApex's user avatar
  • 14.2k
3 votes
2 answers
132 views

Could biological radio be limited to family members?

I have a creature with high-frequency biological radio transmitted via an antenna growing from their heads. However, the creatures can only freely communicate at range with their blood relatives (...
Mark Price's user avatar
  • 2,358
2 votes
1 answer
112 views

What chemistry other than that on Earth could support life on an alien planet? [closed]

I like designing aliens, similar to how Biblaridion did it on his videos on YT where he establishes the world conditions and chemistry of the world and proceed to create an evolutionary tree from ...
Radu Dan Coroian's user avatar
-2 votes
3 answers
238 views

Superbabies can walk right from birth. How many times are they stronger than a normal baby?

XXIII century genetic engineering creates superbabies that can walk straight out of the LDR (labor, delivery, and recovery) room right after being born. These superbabies are enhanced by a set integer ...
Mindwin Remember Monica's user avatar
7 votes
1 answer
101 views

Would communicating through an external, circular "larynx" be viable?

These aliens live on a planet with a thick atmosphere and light gravity, and spend most of their life in the air. They communicate through a series of piercing whistles and sound-wave vibrations, and ...
LOCHLAN's user avatar
  • 739
-3 votes
1 answer
89 views

Fire heat organism [closed]

My organism produce cooled plasma for defense .It lives in planet with very exotic flora and fauna which have super powers . It preys big whales and trex like organism. My question is that how my ...
Uuuuuuu's user avatar
  • 15
7 votes
1 answer
276 views

This organism can survive temperatures of 45°C. What's the next overheating-related threat?

This is a sequel to my previous question in this vein, in which I handwaved away some issues related to Bob overheating. As DWKraus pointed out when answering said previous question, cell membranes ...
KEY_ABRADE's user avatar
  • 12.8k
1 vote
1 answer
103 views

Explosive biology

My organism live in planet full of water . It has only small percent of land about 5% only. It is big as gorilla. It eats metal ores and gains sustenance from it. My organism developed an powerful ...
Bala Murugan's user avatar
4 votes
1 answer
127 views

Super powerful dragon biology

The lower jaw is hollow, to support the breath weapon, but the upper also has a weapon pocket. Each gland secretes a chemical that reacts with the other - the upper secretes a magnesium-rich oil that ...
Mmm Nmm's user avatar
  • 147
8 votes
1 answer
363 views

Altering the muscles of giant creatures to let them stand without collapsing by changing their proteins

One of the problems with scaling up creatures without increasing their proportions is that their muscles won't be strong enough to support their weight due to the square-cube law, which I'm sure you'...
KEY_ABRADE's user avatar
  • 12.8k
-1 votes
2 answers
106 views

Organic metallic compound [closed]

My organism have a weight of 270 kilograms. It have height of 2.49 metres. My organism is reptile and it lived in animals with metallic shells . My organism has bite force enough to crush car in ...
Uuuuuuu's user avatar
  • 15
4 votes
1 answer
123 views

Superheating furnace stomach

My organism lives near volcano. It consumes large quantities of rock and digests specific minerals, expelling the remaining rock, super heated by his furnace like stomach, as lava. What mechanism ...
Mmm Nmm's user avatar
  • 147
-2 votes
1 answer
93 views

Alien biochemistry [closed]

My creature was alien which home was destroyed . It got into another planet similar to earth . Its organs are not like humans. It sustains itself with by passively drawing in body heat and the ...
Mmm Nmm's user avatar
  • 147
2 votes
5 answers
150 views

Scientifically plausible powers : part 1 [closed]

My creature was capable of creating plasmoid flames from thin air not requiring oxygen and combustible objects similar to this "The user can create, shape, and manipulate plasma fire or fiery ...
Mmm Nmm's user avatar
  • 147
4 votes
1 answer
547 views

My creature's cells mix water and some of the stuff in pee to cool themselves. How does it get that stuff to its cells?

After reevaluating the creature that cools its blood with lye and sal ammoniac, I removed the middleman - the cooling chamber and use of blood as coolant - and replaced the potassium hydroxide/...
KEY_ABRADE's user avatar
  • 12.8k
9 votes
4 answers
1k views

Is there space in an average animal cell that I could cram some extra organelles into?

From what I can tell, there's lots of room available inside a cell; certainly, all the graphic representations of them I can find seem to show that a lot of the volume of the cell is cytoplasm, as ...
KEY_ABRADE's user avatar
  • 12.8k
8 votes
1 answer
339 views

How Tall Can Flightless Birds Plausibly Get?

These flightless birds are under strong selective pressure to be able to feed on high up conifer needles, and avoid predation from T-Rex sized predatory flightless birds. The forests the birds are ...
Vakus Drake's user avatar
  • 2,528
14 votes
1 answer
2k views

Possible mechanisms for life near absolute 0

The overview: Would any form of complex life be possible near absolute 0? At least for my personal standards, the "life" merely has to be: a self-sustaining, self-replicating machine, with ...
Brownpill's user avatar
  • 149
9 votes
1 answer
488 views

How can we maximize the speed of a bipedal digitigrade humanoid?

How fast can a digitigrade bipedal ape possibly run? I've raked through any question I could find on here talking about speedy bipeds or digitigrade bipeds (that aren't robotic/synthetic), but none ...
Luxa's user avatar
  • 374
3 votes
4 answers
581 views

A creature has one heart per bodily extremity. How large does each have to be?

The creature has several hearts, each supplying blood to one limb. For all other intents and purposes the creature is human. Of the six smaller hearts, one supplies each arm and leg, one supplies the ...
KEY_ABRADE's user avatar
  • 12.8k
2 votes
1 answer
144 views

How does my symbiotic fungus silicify its own cell walls to armor its host's bones?

Fungi have cell walls which - unlike those of plants, which are made out of cellulose, xylan, and lignin - are instead made out of chitin, glucan, and mannans. A fungus I'm planning on writing about ...
KEY_ABRADE's user avatar
  • 12.8k
6 votes
3 answers
182 views

Shock resistant brains

Being hit in the head with a blunt object, or accelerating too fast (in a rocket) can cause serious brain injuries for people. There are animals who seem to fare better, like woodpeckers. Apparently, ...
user3653831's user avatar
1 vote
3 answers
138 views

I'm not a biologist or an engineer. How do I design legs for a large animal that leaps very long distances?

For designing fictional animals, I'm trying to design one with four appendages that is meant to jump large distances vertically and length-wise and is as large or larger than a human, with hands or ...
StackQuest's user avatar
6 votes
2 answers
181 views

Knuckle-walk in snow / very cold climate

Is knuckle-walking efficent on snow / ice / thick snow ? Can a predator large as a polar bear evolve this? Is protecting the claw in such way, to far fetch considering the fact that the beast need to ...
Veknor's user avatar
  • 632
-1 votes
2 answers
189 views

Science of speculative biology [closed]

My animal lives in planet full of rocks, so it evolved a drill-like mechanism in his hand. What material is that biological drill made of that crack granite like stones with ease ?
Uuuuuuu's user avatar
  • 15
2 votes
2 answers
71 views

I’m making this story that has a blown up planet, and I’m trying to have some animals and creatures that live here that have changed or been modified [closed]

So In this story the main planet has been blown up way before the point of the story taking place, and well I have most of the architecture down I’m stuck on coming up with creatures to inhabit it and ...
Trianus's user avatar
  • 21
5 votes
2 answers
174 views

Chameleon harpoon tongue - plausable or not?

My future “chameleons” have evolved a harpoon-like tongue as an adaptation for catching larger prey as their own body size has gotten significantly larger over the milions of years. I drew a simple ...
Lizardsaurus's user avatar
9 votes
6 answers
2k views

Could a creature breathe carbon monoxide?

In real life nothing breathes carbon monoxide, but it still binds to the things that are supposed to carry oxygen around the body to my understanding. Could a form of life be able to actually use ...
OT-64 SKOT's user avatar
  • 4,426
10 votes
3 answers
948 views

Vampiric kiss with effects similar to nitrogen narcosis

My story has vampires in it. Within my story's universe, I want a human kissing one mouth-to-mouth to result in nitrogen narcosis-like symptoms for said human, and for said symptoms to intensify as ...
KEY_ABRADE's user avatar
  • 12.8k
4 votes
2 answers
121 views

How much salt juice does my bioelectric pulsed field magnet need?

I'm making an organism which generates its own magnetic field - specifically, a magnetic field which pulses on and off repeatedly. Said organism uses said magnetic field to communicate with other such ...
KEY_ABRADE's user avatar
  • 12.8k
4 votes
3 answers
1k views

How big can a young mad scientist make their homemade Clifford before he overheats?

Long story short, a child mad scientist wants to scale up their pet dog - they read about Clifford, and wish to replicate that story, as a young mad scientist generally does. The billionaire mad ...
KEY_ABRADE's user avatar
  • 12.8k
6 votes
2 answers
460 views

Bones with iron like beaver teeth. Would it work?

Beavers, asides from being the largest rodent in North America and making rather fetching hats, also have iron compounds within their teeth enamel which allows said tooth handle higher amounts of ...
Seraphim's user avatar
  • 4,905
3 votes
3 answers
398 views

If endotoxemia and proteins denaturing are no longer problems, what's the next overheating-related threat to an organism?

Let's say that it's impossible for a hypothetical organism's proteins to denature - unfolding and loosing their structure - due to high heat, and that, as such, temperatures equal to those required ...
KEY_ABRADE's user avatar
  • 12.8k
1 vote
2 answers
134 views

How do I stop blood from clotting except upon exposure to the atmosphere? [closed]

Blood clots in order to stop bleeding. The problem is that sometimes it clots when it's not supposed to. This is called thrombosis. It kills a lots of people each year. I want this to stop happening. ...
KEY_ABRADE's user avatar
  • 12.8k

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