Questions tagged [biology]

For questions about living things. Does not exclude aliens, but additional information is usually necessary (consider using "xenobiology" instead).

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39 votes
16 answers
7k views

How can a gigantic creature combat neural lag?

For the purposes of the question, it doesn't really matter if the creature's a continent-sized amoeba or a particularly large kaiju. Speed of thought is relatively painfully slow in organic creatures, ...
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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 ...
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0 votes
3 answers
114 views

Superconductive Fluid to substitute blood for a biomachine?

So my biomachine person, who will go by bob for the question, his very unique. He has machinery replacing half his organs and skeleton. Bioengineered cells work alongside and support the mechanical ...
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2 votes
3 answers
156 views

What is the strongest skin that a biomachine could possibly produce?

My man, let’s call him Bob, is an engineered organism with a mix of both machinery and biology working in harmony. His skeleton and half of his major organs are machine. However, cells engineered ...
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9 votes
20 answers
1k views

Creating a Species purely for Warfare

A species genetically engineered/corrupted/bred for warfare is a staple of fantasy. Lord of the Rings' orcs and Wheel of Time's Trollocs come to mind, for example. Creatures created by the bad guys to ...
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3 votes
4 answers
127 views

Could this filter feeder have a hybrid lung-stomach organ?

The creature is a small reptilian creature, about 15cm long. It feeds on aeroplankton, which in its environment are very plentiful. Other than that, its environment is essentially the same as Earth's ...
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  • 12.1k
-2 votes
1 answer
133 views

How far can a human see a human sized object in detail [closed]

I have a hero looking at a city under siege from a distance. He has some slight height advantage, say standing on a small mound or hill side, so I can ignore Earth curvature at the distances involved, ...
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  • 2,211
1 vote
2 answers
99 views

Can sharkmen perceive your emotions?

alledgedly sharks can feel a humans heartbeat from a mile away or something like that, and they can perceive electrical signals, makes you wonder how come then they are dumb enough to confuse surfing ...
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  • 374
7 votes
7 answers
185 views

Is there a medical condition or neurological disorder that makes it so a person cannot make facial expressions?

I have a character who cannot smile, frown, express anger on their face, or make other expressions but can still move facial muscles to blink, eat, blush, puff cheeks and still feels emotions like ...
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5 votes
1 answer
95 views

How do I know the weight of this shark?

In my game, I mean worldbuilding project... there's a thing called gravity, and gravity affects the weight of everything, and weight has to do with the damage one takes and deals to another, it also ...
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  • 374
4 votes
1 answer
70 views

Can this "headgear" be used for defense even if woven and curved sideways?

I really like this concept for headgear and I was wondering about their use. Since I plan on designing a creature with similar headgear. My theory is that due to the way they are bent they don't have ...
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  • 374
2 votes
2 answers
65 views

Feasible Benefits of Synapsid Lineage for Turbovores

Turbovores are a primary predator in Reaville, much like wolves in Europe, living in a wide variety of environments. Also like wolves, they're apex predators that live and hunt in packs, but they more ...
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  • 12.8k
5 votes
3 answers
110 views

How to heal a defective superhuman?

By modifying the human genome an organization in the future created a class of superhumans. Factors that would cause most hereditary diseases have been erased, and the ones in muscle mass, strength, ...
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  • 49
6 votes
6 answers
355 views

How could human-like intelligence evolve in a nonsocial, non-carnivorous species? [closed]

It seems like two potential motivations behind human ancestors' evolution of intelligence were their complex social groups and behaviors, and hunting behavior requiring more strategic thinking in ...
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4 votes
2 answers
153 views

Is it possible for a blood type AB person to become type O temporarily?

I need a temporary mechanism for blood type switches for my modern love story, the protagonist is a werewolf and would transform every time when there is a full moon. I was thinking maybe a certain ...
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  • 46k
5 votes
2 answers
104 views

Safe and non noticeable changes in gravity

I was wondering what would be the most percentage change in gravity that a human would not notice and would be safe for the body functions? I am designing a rotating space habitat and I want to know ...
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5 votes
1 answer
71 views

How fast would 2ft tall people process alcohol?

I have a world both of normal humans and a fantasy race that are basically 2ft tall, with large heads and torsos and stubby legs if that's important. They typically weigh about the same as a housecat. ...
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  • 845
2 votes
0 answers
77 views

Is it possible to make a Demonic bite force for a demon with split mandible

I ADORE the design of the Dragonbat from The Cabin in the Woods. and I intend on making a similar region of anatomy for hellbound (sinister nightmare) bonnie the bunny, which is essentially just a ...
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4 votes
2 answers
100 views

Could certain parts of someone's body have denser nerves than other parts?

This question is based on another question that I asked last year: How to Give an Ordinary Man Vampire Strength That question was on the basis on one overlooked trait of Bram Stoker's Count Dracula, ...
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4 votes
5 answers
726 views

How can a creature get high off of anti-acne medication?

For some reason, there's a creature that gets high off of acne medication, as per the title. Specifically, when it ingests a certain quantity of clindamycin phosphate 1 % topical solution - an ...
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6 votes
5 answers
517 views

Explaining Anthropomorphism In Later Development

After 1000 years of dwelling in apocalyptic shelters, some brave souls have begun exploring the surface. (This is how Rhydars were discovered and documented, by the way.) Among the first things these '...
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  • 12.8k
4 votes
2 answers
122 views

What adaptations would a winged humanoid species have to be able to live on a mountain peak?

Okay, so I have a species that are humanoid but have wings, and live up on mountain peaks, like where all the snow is. They are sentient like humans, and have the same level of intelligence. I'm ...
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4 votes
3 answers
817 views

A reason to require having a tube run down from the mouth to the lungs in order to breath

I have a human character who wears a gas mask over their mouth connecting to a tube that runs down to the lungs. They're meant to have a birth defect that made it very difficult to breath hence the ...
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3 votes
3 answers
78 views

Explaining Symbiosis for Rhydar

If you don't know what a Rhydar is, please see here and here. So, Rhydar are pretty interesting creatures. Post-apocalypse radiation and magical energy (long story short, this world was apocalyzed-...
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  • 12.8k
4 votes
3 answers
382 views

How to completely domesticate big cats while keeping them huge?

From what I've gathered from answers to a similar question, the big felines would need: a homing instinct, more sociability, an increase in "synaptic plasticity" whatever that means, a ...
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5 votes
2 answers
294 views

Nail to Claw: Evolutionary pressures for hominids to develop claws

In my question about carnivorous elves, one of the commentors pointed something about my elves that I had not really considered in depth before hand. My elves are a form of hominid, thus an ape. My ...
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  • 3,327
-1 votes
1 answer
156 views

How could a human biologically climb vertical walls?

I know that insects and geckos are able to do this because of clinging pads, or something like that, but they have a very low weight limit so therefore would not be able to support a human. So how ...
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7 votes
4 answers
288 views

Explaining Engineering Lizards

Scratchera are a Revelian race, a race of rather small and agile anthropomorphic lizards. On Reaville, archosaurs and other saurians have grown to take the place of most modern-day mammals, which is ...
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  • 12.8k
2 votes
1 answer
117 views

Would we perceive more details if each of our eyes had different color cones?

Usually we have 3 types of color cones namely red, green and blue but 25% of us will have the 4th color cone that is rumored to be able to see 100 million colors that is about 100x more. But what if a ...
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  • 46k
4 votes
5 answers
507 views

Our missing sense. What is it and how does it work?

Disaster had befallen the tribe of Mitochondrial Eve, their population had been reduced to less than a dozen individuals, siblings and cousins all. Although this population bottleneck was eventually ...
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  • 1,908
6 votes
2 answers
130 views

A creature that turns all water near it into slime

I have an idea for a creature, and I want to figure out if it's possible. I'd rather not handwave it with "magic", so, here I am, asking the Stack. The creature is eel-like, and is capable ...
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3 votes
3 answers
348 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 ...
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1 vote
2 answers
118 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. ...
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4 votes
4 answers
378 views

What bodily complications will present themselves with humans designed to grow as fast as horses?

Long story short a kind of human has been created that grows to adulthood/matures in the same time span as horses do(4 years). Their intended purpose is as an easily inflatable and replaceable ...
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  • 4,417
3 votes
4 answers
153 views

How much biological overlap would there be between a mirror life ecosystem and an Earthly ecosystem?

Background: Chiral molecules or ions are particles which cannot be made congruent to one another via flipping one or rotating one. For example, the same property applies to your hands, assuming that ...
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8 votes
8 answers
311 views

Determining Feasible Mermaid Locomotion Methods (Land Edition)

Lately, I've again pondered how mermaids could move on land. I know certain fish, like frogfish, devilfish, and even batfish, as well as mudskippers, have developed fins that work as feet. However, I'...
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  • 12.8k
3 votes
3 answers
104 views

How can the storage space of an avatar be restricted to a standard size?

An avatar is a mortal shell constructed to hold a godlike entity from a higher realm. Gods cannot pass into the human realm due to a mystical barrier that separates both realms. These avatars function ...
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  • 38.2k
6 votes
2 answers
257 views

Eyelids with compound eyes?

I have a large insectoid creature with compound eyes in my story. The creature’s habitat is prone to sudden dust storms; as a result, I was planning to have it evolve a set of eyelids so it could ...
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  • 1,512
29 votes
16 answers
6k views

Hiding superstrength in plain sight at the gym

One of my characters is extremely strong, due to their unusual physiology. They can bench press hundreds of kilograms, and so on. They had to hide their strength for a long time, but, as a result, ...
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4 votes
2 answers
396 views

If Earth's atmosphere was 100% oxygen, which settlement would be the lowest habitable one? [duplicate]

If we replace all other gases of the Earth's atmosphere by oxygen so that we have 1 atm oxygen at sea level, which one would be the lowest (either permanently or for a certain amount of time) ...
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6 votes
7 answers
801 views

How would a humanoid gain a symbiotic head bulb?

Seedgirls look like ordinary girls but they have a big green bulb on their head. This bulb holds a powder they use to speed and enhance plant growth. My question is how the bulb gets there in the ...
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  • 12.8k
2 votes
3 answers
140 views

Would earth life be able to synthesize the chemicals or materials needed to produce endothermic reactions?

An answer in this question by Gillgamesh inspired this question, mostly to see if it's at all possible. Basically the end-goal is to have an organism that would make use of endothermic reactions to ...
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  • 4,417
6 votes
2 answers
196 views

Would mermaid be able to leap higher out of water with a Fosbury flop?

In a high jump sport on land, athletes would adopt Fosbury flop technique to cross over a bar. This bar is the indicator of how high an individual can jump with reference to the ground, so I wonder ...
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  • 46k
9 votes
4 answers
398 views

How to design the muscular structure of a dragon?

I am raising dragons for my world. So far they had 4 limbs (2 legs that are also used as wings and 2 legs used for walking and grabbing things). But I started wanting to embrace the fantasy even more ...
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  • 2,674
5 votes
1 answer
147 views

If other animals evolved to have similar anatomy to humans, would those with dewclaws end up with four or five fingers?

I’m writing a story about anthropomorphic animals who are their world’s equivalent of humans. They walk upright, talk, and have established a society, but I’m having trouble figuring out the anatomy ...
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4 votes
1 answer
123 views

Realistic limits of a ''Growth Spurt''

A character of mine (a girl in case that detail matters a lot) is at the brink of entering (or already int he early stages of) puberty. And apart from (due to story related circumstances) growing up ...
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  • 1,441
4 votes
3 answers
147 views

How would slimy scales help a dragon to fly faster?

Fish scales consist of glycol-proteins - the kind of mucus that is supposed to reduce drag in the water - but in the air, prolonged exposure from UV would destroy this slime and I seriously doubt it ...
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  • 46k
1 vote
2 answers
293 views

Would a person adapted for super-speed be super-strong too as a side effect?

Or am I just overthinking it? Maybe I should note that the character is like 76% magical entity, so maybe it can simply be handwaved, but I wanna check if I can blend in some science in there, too. To ...
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2 votes
1 answer
218 views

Elaat (of HighFleet) is a large planet (6.6x Earth), but much less dense than Earth. Are there such rocky planets? [closed]

According to this reddit post, Elaat, the fictional world of HighFleet (steam link, humble bundle), is 159758.26 mi around. Compared to Earth's ~24,000 miles. (about 6.6x) Yet in game, large thruster-...
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25 votes
22 answers
6k views

How do I stop Bob the gigantic animal from overheating?

Specifically: what are some biological structures that could help subvert the square-cube law's effects on animal overheating? Bob is a really, really big land-based ambush predator that's normally ...
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