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3 votes
3 answers
215 views

Can an organism have body structure materials that crumble upon being injured?

I'm working on building a species of wild animal, and I have several criteria in mind, and I'm looking for any glaring issues I may have missed that makes such a creature entirely infeasible ...
Harthag's user avatar
  • 4,143
6 votes
2 answers
277 views

How do I justify the evolution of merpeople within a few million years?

I'm creating a sort of fantasy world that I'm still trying to keep scientifically accurate (it's more alternate history than anything since I'm having it take place in our world with a few points of ...
dsb -'s user avatar
  • 647
3 votes
1 answer
106 views

Cobalt chemosynthesis?

I want to create a world where everything revolves around cobalt and I was wondering if there are autotrophs that receive energy due to chemosynthesis involving cobalt compounds, is it possible?
Jester's user avatar
  • 41
4 votes
1 answer
163 views

Giant realistic Prototaxites like fungi in a hot climate

My planet is very similar to earth around 359 to 299 million years ago. years ago. It’s mostly covered in deserts, jungles, swamps, temperate forests, and their variants. (The Carboniferous period) ...
HomegrownPotatoes's user avatar
6 votes
1 answer
189 views

(TW: Strangling) Would this character actually have any difficulty breathing?

((Alright, so! I don't even know if this is the right place to ask, but I hope to hear your thoughts. Sorry for the morbid topic and thanks in advance!)) In a comic I'll eventually draw, there's this ...
katekat's user avatar
  • 63
6 votes
3 answers
137 views

Solar-powered monster charging stations?

Lets assume we have a super advanced intelligent, possibly magical, Entity that wants to enroll Earth in a fun episode of monster invasion by making a bunch of demons and releasing them on Earth. The ...
Seallussus's user avatar
  • 8,485
19 votes
5 answers
3k views

Are hydrocarbons viable foods for larger organisms?

There are some oil consuming bacteria which can break down hydrocarbons in the ocean. Since these tend to store a lot of energy, I was wondering whether it's possible for larger organisms to take ...
Radvylf Programs's user avatar
8 votes
4 answers
3k views

Feasibility of life on a Flesh Planet?

The context is a spacefaring civilisation decides to dump its refuse and biomatter into space. Due to a technical error, the biomatter doesn't fall into the nearby star but instead finds a stable ...
Felix_Lovecraft's user avatar
5 votes
2 answers
270 views

Biological process that turns iron oxide into atomic iron

My human colony on Mars uses gentically modified archea/bacteria to turn dust collected from the surface of the planet into construction material and breathable oxygen. Technicalities of the ...
Reverent Lapwing's user avatar
3 votes
1 answer
97 views

Can a solar powered biological stationary giant snake exist?

The Moon Jungle is known for its enormous trees with dense vegetation and fauna. However, there is a path where no tree or bush ever dares to block the way of day or moonlight. In this path stands ...
SavioKingdom's user avatar
3 votes
3 answers
303 views

How would a plant like entity use animals?

The land is covered in structures of green coloring. Some look like igloos and some have veins pulsating and moving slowly with membranes which seem to almost be breathing the way lungs do. Some of ...
Green's user avatar
  • 435
7 votes
4 answers
295 views

growing and farming metals

Is there any biological or environmental factor stopping animals or plants to be farmed for their metal absorbing qualities? Consider we are also counting creatures created through selective breeding, ...
Green's user avatar
  • 435
5 votes
6 answers
2k views

How could a living biological sword survive a spaceship crash and then isolation for millennia?

A sword with a blade made of metal, or the least, it looks metallic, shiny and clean. A sword as old or probably older than our civilization, it has writings on the blade, never seen before, never ...
Green's user avatar
  • 435
3 votes
3 answers
266 views

How would changing pregnancy time affect a female human's metabolism?

If humans were altered so that pregnancy lasted only 3 months, what other biological challenges would this cause? Obviously it would have be at substantial increase in calorie intake to support the ...
Bryan McClure's user avatar
4 votes
2 answers
844 views

Would less gravity allow for larger flying creatures (like dragons)

From my superficial understanding of physics, it seems that large flying creatures like your typical Western dragon wouldn't be possible on Earth, specifically because they would always be too heavy. ...
Keith Stein's user avatar
4 votes
1 answer
347 views

Evolution of ossicones like structures to tentacle or trunk like limbs

A time ago I made a similar question which is this and some time after other similar which is this. So I can consider this new question an improvement or continuation of what I wanted to achieve with ...
Drakio-X's user avatar
  • 2,625
6 votes
4 answers
727 views

Cryo-Pods For Unaltered Humans

OK, faster than light isn't possible & a merely significant fraction of it can begin to stretch the bounds of reasonable reality as that fraction increases // so a less unreal way to allow us our ...
Pelinore's user avatar
  • 9,673
4 votes
2 answers
777 views

Stimulant which kills the user in the absence of strenuous physical activity

I recently had an idea for a sci-fi story about death's row inmates (possibly war criminals) being subjected to an experimental stimulant which greatly increases their strength and agility, but will ...
Puck's user avatar
  • 677
12 votes
4 answers
2k views

Boom of the Thunderbird

Could wings and feathers be capable of creating a sonic boom like whips do? The thunder bird of native American myths was a large raptor that was often accompanied by bad weather and the sound of ...
Eloc's user avatar
  • 1,250
11 votes
1 answer
620 views

Evolution of sexual parasitism in a species with small and intelligent females but large and "brute" males?

So, I had this idea about a sapient alien specie paritally based on the reproduction of the schistosoma A flat worm specie in which the male is notorious bigger than the female, and this have a ...
Drakio-X's user avatar
  • 2,625
11 votes
2 answers
3k views

What would make a plant's leaves razor-sharp?

Imagine a field of plants that when walked through cuts human skin. Unlike a Stinging Nettle, the leaves would have to have razor-like edges, without the trichome hairs. The leaf edges should cause a ...
Mandelbrot's user avatar
  • 1,583
5 votes
1 answer
321 views

Are Aeroplankton a feasible food source?

On an Earth-like planet, you would assume oceanic plankton and terrestrial microorganisms would exist. But, could there be plankton in the sky? While there are certainly nutrients floating through the ...
Mandelbrot's user avatar
  • 1,583
2 votes
2 answers
207 views

What kind of atmosphere is needed for large floating organisms?

Assume you have an identical Earth-clone planet, what kind of atmosphere is required to have floating organisms? What I define as a large floating organism is something about the size of a bat, but ...
Mandelbrot's user avatar
  • 1,583
2 votes
2 answers
204 views

Can we live off hydrothermal vents?

I'm sketching a story about a rogue Earth (that is, Earth got flung out of the solar system) and how humanity could survive. One of the main problems is food. Hydroponic farms with grow lights are one ...
The Square-Cube Law's user avatar
0 votes
3 answers
385 views

How would a "flaming collar" work in an animal and how could it be useful? [closed]

This a concept which personally I see with a lot of visual style and epic to describe, to be implemented for a creature in a fictional world. Probably you can call this "burning head" or &...
Drakio-X's user avatar
  • 2,625
8 votes
3 answers
346 views

Drop dead disease

Diseases kill people by messing up with some mechanism that is necessary for life. This generally means that they have a progression - for respiratory diseases, you will have difficulty breathing for ...
The Square-Cube Law's user avatar
5 votes
2 answers
143 views

Using Cellular DNA Reader to Counter Radiation Damage

I have a space based setting and would like to develop a mechanism that counters radiation damage. Here is my idea: The setting 100 years from now. A cellular organelle is developed similar to the ...
Englishman Bob's user avatar
10 votes
3 answers
236 views

Increasing Speed of Neural Transmission by Embedding Material in Myelin Sheaths

I am building a science fiction world 100+ in the future with various human augmetics. One of the things I would like to do is speed up human thought. My preferred mechanism for embedding this ...
Englishman Bob's user avatar
8 votes
3 answers
1k views

How much can I expand human color perception by adding new photoreceptors?

Normally, the human retina contains four types of light-sensitive receptors (opsins): three types of cones and one type of rods. Receptors contain proteins-chromoproteins - iodopsin in rods, ...
French Thompson's user avatar
3 votes
2 answers
174 views

Decomposers produce acid and depend on (liquid) water to perform their function. Is this world coherent?

About my idea: The decomposers of this world perform the degradation by producing and diluting acid in liquid water molecules. In this world, most decomposers are present in the seas and oceans. ...
user avatar
5 votes
4 answers
161 views

Can facial Nerve damage cause all facial functions to shut down (temporarily)?

So I'm writing a character that cut his face very deep making a big x mark on his face at some point in the past to scare off a couple of thugs. He survived the ordeal, but now it so happens that ...
Nass King's user avatar
  • 1,051
3 votes
6 answers
2k views

Can a person use plants instead of blood, and what would the consequences of this be? [duplicate]

I have been brainstorming an idea for a kind of human-plant symbiosis, in which a plant has either evolved or been modified to photosynthesize with heat instead of light. This plant may have evolved ...
Kirby's user avatar
  • 39
44 votes
9 answers
7k views

How realistic is a genetic memory?

Many pieces of popculture (like assassins creed or the aboleths in dungeons and dragons) use the concept of a genetic memory. How realistic is this concept? In particular, I am interested in ...
Qoray's user avatar
  • 1,089
6 votes
5 answers
838 views

Is it plausible for a world without fossil fuels to have developed naturally?

So the idea of worlds like this has been brought up a few times, about how human technology would have developed without fossil fuels, but the question I have is whether it is plausible for a world ...
Adam Reynolds's user avatar
8 votes
2 answers
315 views

Is it possible to create a new hybrid species of the homo genus that can produce offspring?

I have read about hybrid speciation: "speciation where hybridization between two different species leads to a new species, reproductively isolated from the parent species". I wanted to know ...
user avatar
3 votes
2 answers
409 views

How could an animal evolve with carbon nanotubes?

Is it biologically feasible for an animal to evolve in a way that allows the body to produce carbon nanotubes? How could this happen? What advantages would it give?
Praearcturus's user avatar
  • 1,334
2 votes
1 answer
101 views

What if our body could postpone exertion?

Generally, whenever you do physical activities, your body pays with physical energy, and your body experiences exertion. So, if say I ran 100 metres, I would lose some energy and my muscles and organs ...
Nass King's user avatar
  • 1,051
3 votes
2 answers
159 views

Giant superpredatory pike?

In my world, there is a species of pike, like a muskellunge, but it grows to massive proportions. They are 9 to 18 ft and weight 235-1,900 lb, with a maximum size of 26 ft and 3 tons. They live in ...
Praearcturus's user avatar
  • 1,334
8 votes
4 answers
4k views

Anatomically Correct Egyptian God/dess

Ancient Egypt is famous for its plethora of gods and goddesses, many of whom have the head of an animal. image source I'm looking for a real-life inspiration for the physical shape of these gods ...
Elmy's user avatar
  • 15.8k
7 votes
2 answers
256 views

Could my chameleon dragon exist?

chameleon dragon are closely related to Parson's chameleon and some basic characteristics of them include: being ambush predators use active camouflage (similar to cuttlefish and some octopuses) are ...
icewar1908's user avatar
  • 6,895
2 votes
1 answer
214 views

Could my leviathans exist?

Leviathans are closely related to hydrophis spiralis. Some characteristics of these leviathans include: continuing to grow until they die and are able to grow almost as large as a blue whale are warm ...
icewar1908's user avatar
  • 6,895
4 votes
7 answers
1k views

anatomy or musculature to achieve full rotate jaw?

you know a jaw or mouth where the jaw full of teeth fully rotate like a drill or gear to shred their food or prey, usually show often in worm type of monster (my question is not necessary to be worm ...
Li Jun's user avatar
  • 8,897
-1 votes
5 answers
772 views

biologically or anatomically is there a problem with this type of double mouth or jaws?

i am not talking about xenomorph or moray eel type of jaws or multiple mouth or lower jaw inside the mouth. but this type of mouth/jaws or i called it double chin jaws where the chin also work as ...
Li Jun's user avatar
  • 8,897
4 votes
2 answers
505 views

Proportions of a giant humanoid?

In a humanoid mammal, say 15-20 feet tall, how would the brain, heart, reproductive organs, facial feature and other attributes scale up? In very large mammals, the brain seems to be comparatively ...
Praearcturus's user avatar
  • 1,334
2 votes
1 answer
452 views

Does this magic system seem sufficiently hard-rational?

The world I'm making is primarily sci-fi with a few elements of hard fantasy (the fantasy is mostly aesthetic). The magic system I've come up with so far consists of these premises: 1) Everything in ...
MrFahrenheit46's user avatar
9 votes
3 answers
2k views

Feasibility of six inch space-faring aliens

I’ve recently been playing a alien game with various alien species. After playing for a bit, I wondered whether or not a 6-inch tall intelligent race could exist. I can already see some major ...
RotNDecay's user avatar
  • 2,514
5 votes
2 answers
430 views

What will the abdominal muscles of non-primate humanoids look like?

After looking at concept art of various humanoid creatures portrayed in science fiction I noticed many artists tend to make the abdominal muscles of their creatures/aliens look similar to those ...
user avatar
4 votes
2 answers
627 views

Could triangular DNA exist?

This is sort of a follow up on my question Could a "multicellular" virus exist? in which part of the consensus was that viruses simply can't hold enough DNA. In theory, could DNA form in a ...
Topcode's user avatar
  • 2,305
11 votes
6 answers
2k views

is it possible for creature to have loose jaw like snake but also has enough bite strength to bit off big chunk like most predator or human do?

I want to create a glutton creature that can open its mouth wider than the prey item like snakes do, but also can bite through that big hard object and even chew it; this creature doesn't swallow prey ...
Li Jun's user avatar
  • 8,897
6 votes
1 answer
271 views

Could my fungus exist naturally?

My fungus starts out as an extremely small spore, this small spore will bury and implant itself near the spinal cord and cerebellum, and will then secrete an enzyme that hijacks and later puts it in ...
RotNDecay's user avatar
  • 2,514

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