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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3
votes
1answer
13 views

To what extent is it feasible for this race to be majority female?

In my world there is a race of humans who are disproportionately female. They are closely derived from and very similar to real-world humans, but are unable to interbreed with the other races as they ...
4
votes
3answers
122 views

What would a matriarchal intelligent species look like?

I have a species of early primates (lemur-like but not lemurs) developing into an intelligent species like humans (and yes, there is some influence from an intelligent species, it's not 100% natural ...
5
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2answers
78 views

Would it be possible for my fantasy creature to have black blood?

A friend of mine has a race of creatures in her headworld and has been wondering about a biological answer to justify the color of her race's blood even though magic is a bit sprinkled in there. One ...
10
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5answers
725 views

How much would a 1 foot tall human weigh?

Trying to figure out how much a 1 foot tall fairy would realistically weigh using these 2 guidelines Fairies are just scaled down humans. Their bones are not hollow because their flight is assisted ...
4
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1answer
95 views

The Hydrogen Dragons of Capella Signi Alpha

The fossil record indicates they evolved far back in their ancestry from something not dissimilar in appearance to a lobe finned fish, but with an extra pair of bilaterally symmetrical fins, though ...
10
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3answers
349 views

Mass extinction because of too low CO2-lewels

We have all heard what too much CO2 can lead to, but so far the biosphere have never been exposed to too low levels of CO2. But what if it did? And please, this topic has nothing to do with the ...
3
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3answers
150 views

How could a creature derive energy from radioactive elements?

Have a creature that doesn't really need vitamins or minerals, it only requires energy which goes through a energy-matter conversion to build what it needs. Radioactive materials would be great ...
-4
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0answers
57 views

What could be the root reason of having an appendice in an evolutionary point of view? [on hold]

I looking for some ideas that could lead to the discovery of a new extincted species branch or an unknown inheritage present in all human genes.
22
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14answers
6k views

What organs or modifications would be needed for a life biological creature not to require sleep?

I mean literally not sleeping for the rest of their life, not like giraffes that only require short rests, or dolphins that can sleep with half of their brain at a time, or like otters and sharks that ...
4
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1answer
133 views

How could a race of humanoids have grey skin?

Gray skin and red eyes is a common look for Dark Elves, and I have a similar race in my own world. But what would physically cause such an appearance? Hard Requirements: Must not be the result of ...
5
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5answers
114 views

How Would Weightless Creature Steer Itself In The Air? (Can It Sail?)

Gravity does exist in this world, and so does air and clouds. But this creature only has enough weight to stay in the air without falling or being lifted up. It's big like a whale and it does have ...
3
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2answers
119 views

How big could dinosaurs get with super strength and durability?

On this parallel earth all vertebrates received the ability to efficiently produce super strong materials from readily available minerals/nutrients in the mid Triassic. The specifics of these ...
5
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4answers
543 views

Bacteria vats to generate edible biomass, require intermediary species?

In my understanding bacteria is a simple thing to grow as it requires: a Nutrition concentration at the right Temperature with the right Gaseous concentration at the right pH with additional Ions and ...
2
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1answer
112 views

Rapidly Spreading Disease Timeline - Fungus Based

I've been working on this concept where a deadly new fungus starts spreading from two central locations. One in Europe and one outside of a major city in the United States. Over the course of 16 days, ...
1
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3answers
101 views

How to protect these rhinos? [closed]

In my post-apocalyptic world, rhinos are used as beasts of burden. However, in order to survive harsh conditions and harsher predators, they need to have some sort of armor (natural or unnatural). ...
0
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1answer
230 views

How many pixels to see atoms?

Human sight uses about 500 megapixels. Now, imagine someone who uses more than 500 megapixels (with the same width), I assume that he would see things more accurately. So my question is : - how many ...
17
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13answers
7k views

What would a biological creature need in order to see into the future?

Inspired by the Paycheck and Minority Report movies. So far as I can tell, physical time travel is impossible for humans, and so I searched to see the future possible scientific or theoretical ...
13
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1answer
361 views

Would a corpse look different on an interstellar spaceship?

I'm writing a murder mystery set on an interstellar starship. Context: The victim was found dead in a zero-gee chamber inside the ship. The ship is in interstellar space and traveling at around half ...
5
votes
1answer
143 views

Effects of dropping in and out of zero G on a space station

I'm writing a book that involves having a space station that acts as a way point between Earth and a new planet. (Hard"ish" SF, or as "Hard" as I can make it...) The Station sits at the mouth of a ...
5
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1answer
118 views

Would it be feasible to determine whether or not a humanoid species is fertile in less than a week?

So, as one of the many, many consequences of modern day humanity being given access to a runic magic system by an unknown party, nearly the entire human race discovers one morning that they've been ...
5
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1answer
230 views

Can we scale down humans to the size of a mouse?

Can we make a human brain and body the size of a mouse’s while still retaining the same level, if not more intelligence? Like how tech has evolved to be smaller but more efficient or how cars are ...
6
votes
1answer
285 views

What would a silicone-based plant, especially a tree, look like?

This question's information is based on the answer in my previous question about what the aquatic creature need in order to live or survive in my acid water? The thing that's not in the description ...
3
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3answers
154 views

Human survival on unaltered Mars

What would it take for humans to survive on mars, without shelters, akin to the Martian, in terms of genetic engineering? Is it even remotely viable, or would some mechanical assistance (oxygen tanks?)...
2
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1answer
109 views

Venusian Adaptations

Recently I've been imagining living on a terraformed Venus in a distant future. I've a pretty good idea of how this can be done, having gone through many articles on how to terraform venus, so my ...
11
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2answers
154 views

Symbiotic barnacles for underwater respiration

My world has two races of mammalian mermen, one of which are somewhat monstrous and I'll call them "Abyssals" in this thread. I really want the Abyssals to 'breathe' underwater, as well as being able ...
25
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3answers
3k views

'Horseshoes' for Deer?

Would a "working deer" living in cities with hard paved or cobbled stone ground need "deershoes"? The deer are mainly used for light work: no heavy lifting or pulling. Would unchanged deer feet and ...
3
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1answer
197 views

what the aquatic creature need in order to live or survive in my acid water?

inspire by xenomorph acid blood from alien movies. so the water either rivers, lakes, and oceans in my world or some of the regions is highly acidic because some of the dirt or stone minerals content ...
10
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3answers
231 views

If we brought ancient germs to the present

If germs from the past was brought to the present/future on a person (or by some other means of transportation) and we have immunity to its descendants, like the modern germs for example, would we be ...
9
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2answers
784 views

Alternative to Magnesium's Role in Photosynthesis

It is a known fact that magnesium is a very important part of photosynthesis and chlorophyll. I have looked everywhere to try to find out this question but I have never really gotten a solid answer. ...
10
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5answers
224 views

Fire Producing Organism

I was hypothesizing an organism that could create it's own fire with the use of a flamethrower-like organ. I was thinking that this animal has a oxygen-free organ that hold diethylzinc and when the ...
15
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7answers
3k views

Biological refrigeration?

Technological approaches to refrigeration tend to involve either high compression ratios of fairly exotic (from a biochemical point of view, anyway) volatile substances, or high-power, low-efficiency ...
1
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0answers
84 views

Could this model for a winged creature with arms work? [duplicate]

Research Birds have: Air foil (i.e., wings that taper at the bottom), Muscles and bones to allow rotating wings forward and down including strong breast muscle, Large lungs, and Hollow bone. The ...
2
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3answers
153 views

Would you carry the exact same DNA if you were concieved at a different time?

In this world, time travel is possible, but the only thing that can be sent back in time are thoughts. From the perspective of your past self, you suddenly one moment realize that you have "memories ...
1
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1answer
145 views

Can I use a living organism as exotic matter for interstellar travel?

Would it be possible to use a living organism as unobtainium for interstellar travel? Would it make any sense? The story I had in mind would use them as the main bad guys seeking vengeance on those ...
12
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3answers
540 views

What would make bones be of different colors?

I am currently working in a "fantasy" world without any kind of magic and I thought of a race with different skeleton color (blackish in particular but I want to know in general). I am not well versed ...
6
votes
5answers
363 views

Which cells to pick to get a pure sample of DNA without precise equipment?

Normally when conducting DNA testing, I presume techniques are utilized to ensure you're just testing one individual's DNA from a sample, even if it is possible that sample was contaminated one way or ...
2
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0answers
145 views

How big would the Akashic Records be? [closed]

The Akashic Records are a catalog of all events, thoughts and feelings that have happened on Earth. Supposedly its stored on the etheric plane. I'd like to have this information existing in the the ...
8
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5answers
272 views

Could a non sentient land animal evolve an innate knowledge for making boats?

I understand that some non human animals build structures that they innately know how to build, such as how birds innately know how to build nests, and spiders innately know how to make webs, and ...
1
vote
1answer
70 views

Noble Gas Ionization by Enzymes

I am simply wondering if an organism could possess an enzyme that could ionize a noble gas such as argon, krypton, or xenon. I was thinking that the organism could obtain energy through light or maybe ...
38
votes
7answers
7k views

Would it be possible to have a GMO that produces chocolate?

I am inspired by some people who apparently believe chocolate milk comes from brown cows. I know that for sweet, delicious chocolate to come into existence, we need to do things to cocoa. Ferment it, ...
2
votes
1answer
108 views

how plausible is this method of humans breathing fire?

My method of breathing fire involves humans stomachs producing ethane or methane and them holding a lit flame near their faces and just breathing out of burping . Fire breathing in this is more ...
10
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2answers
130 views

Algae using UV light from auroras for photosynthesis

I was reading some questions on Quora and I found this claim: The polar regions have a very odd reason for them to have so much oxygen production. You see the Polar aurora run day and night in the ...
3
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2answers
86 views

Effects of Ammonia

This is a continuation of a question I made earlier! The atmosphere consists of 80% N2, 17% O2, 1% CO2, 1% NH3. I am not extremely familiar with the chemistry of ammonia, but I do know that it ...
3
votes
1answer
115 views

Physical causes of multiple births in humans?

The setting I'm building has a race of people, derived from modern humans, whose primitive survival as a species relies partly on very fast reproduction, and I think I want them to have a tendency for ...
10
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3answers
336 views

What would a Pegasus actually do with its legs while flying?

The question is just as simple as it sounds. Would it tuck them under like a bird? make running motions like it does when running on the ground? some other movement that actually aids in flight ...
1
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3answers
91 views

Interesting Atmosphere Chemicals

I am currently working on world-building a planet, and I wanted to try to diverge from Earth's atmosphere a little bit, but not extremely. I am planning on still having it be a oxygen-nitrogen rich ...
5
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3answers
991 views

How large could a giant turtle get?

Assuming a turtle or tortoise evolved adaptations to become large comparable to that of sauropods. How large could they become (in weight or potentially carapace size)? The turtle needs to be ...
4
votes
5answers
413 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 ...
3
votes
1answer
130 views

How Developed Would Baby Mwindo Be?

In real life, humans get pregnant for only nine months. Once born, the baby has a long way to go before it can stand, walk and talk. But don't tell that to Mwindo! The African saga of the hero ...
5
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2answers
235 views

What happens when a person with some edited genetics (like say, eagle eyes) reproduces with a person with regular genetics?

If person A has had the genes dictating their sight/ the internal structure of their eyes, replaced by say, eagle eyes or cat eyes. What happens when they reproduce with person B who has regular ...