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
3answers
291 views

How can the transfer of a soul to a new body lead to physical deformities?

The soul is the metaphysical spirit of a mortal being and is the seat of human consciousness. It retains all the aspects that we consider makes us human, from personality to memories to how we ...
6
votes
4answers
792 views

Feasibility of Velocisharks

This question is all about how a shark can evolve to have the following traits: Amphibious Pack behavior Dromaeosaurid form (bipedal, scaly, with four talons and a sleek but strong frame-resembling a ...
6
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2answers
79 views

Aliens Using Both L and R-Amino Acids or Sugars - are they possible?

It's fairly common to see discussion of different chirality for amino acids and sugars whenever people ask for advice on plausible alien designs or biochemistry (e.g.: metabolizing left-handed sugars ...
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0answers
50 views

What would the waste product of respiration in a Si based life form be [closed]

What would be the byproduct of the respiratory process in a silicon based life form, we (carbon based life forms) exhale CO2 but what would a Si based life form exhale?
1
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1answer
122 views

Adapting to normal gravity after spending time in centrifugal artificial gravity [duplicate]

So pretty much, my world contains a lot of space travel/colonisation, and people live on ships with artificial gravity via centrifugal force. The diameter of these big spinny cylinder things (?) is ...
8
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8answers
2k views

Could silicon-based lifeforms eat carbon-based food? [closed]

Say a group of silicon-based aliens arrive on earth, would their bodies be able to extract any nutrients from carbon-based food?
5
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4answers
176 views

How do animals evolve to have arms

My question is how/why does my creature evolve into having arms when it has none? Context: I am currently creating a evolutionary tree for the first animals of my planet. My planet is the size of ...
3
votes
1answer
80 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 The ...
6
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3answers
679 views

Retractable blade

I am busy working on a race of humanoids, to defend themselves against their planets large predators I gave them a pair of retractable keratin blades which are housed just below the Ulna in the ...
6
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1answer
140 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 ...
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3answers
233 views

What's the minimum height of a mountain resolvable to the human eye from 800 miles on a flat Earth?

The Taniquetil / Oiolossë (Mount Everwhite) on the eastern shore of Aman is the tallest mountain on Arda. Far higher than the other Pelóri, it could be seen from the mountain Meneltarma on Númenor ...
3
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1answer
93 views

Can we "train" the body to be more resistant to internal bleeding/head trauma?

Well, in order to give some background, basically the army of this fictional country is taking military training to its limits, but not in the traditional manner. For example: One of the first steps ...
3
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2answers
976 views

Physical effects of strong magnets under skin?

I should preface this with "I'm a fiction writer." If someone were to implant extremely strong magnets under their skin and attach an attracting magnet to the outside, how would that affect ...
1
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1answer
59 views

Rubberizing's Effects on Giant Caterpillars

Giant caterpillars vs. Plops = Giant caterpillars > Plop It appears, since giant caterpillars lack bones and possibly rigid parts in general, they could serve as a viable Plop predator despite ...
4
votes
1answer
147 views

Little Mermaids: Will They Survive?

No, this question is not about creating a subspecies of mermaid that all happen to look and act like a certain Disney princess. Not at all, in fact. You see, mermaids in my setting are capable of ...
20
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5answers
3k views

Feasibility of Giant Butterflies as Predators

I have asked multiple questions about giant caterpillars, now it's time to account for their evolutions. Sure, giant flowers could and probably would exist in Alendyias; an Engorger dying in a flowery ...
3
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4answers
120 views

What would make a species of sentient starfish rationally and ethically choose between sexual and asexual reproduction? [closed]

Starfishs or seastars have sexes( they are either male or female) but they can reproduce both sexually and asexually. The latter is possible using fission or fragmentation. In this planet there is a ...
3
votes
1answer
160 views

Determining the Best Wild Anklebiter Predator

The natural sequel to Making a Predator For Wild Anklebiters, which was inconclusive. You see, Wild Anklebiters are chimeric monsters-being equal parts flower, worm, and leech-with a rather ...
4
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2answers
53 views

Explaining Chasers as a Evolutionary Stage of a Caterpillar

I recently discovered Chasers (described here) are basically impossible as a form of giant caterpillar, since caterpillars are a larval stage and need to store energy for metamorphosis. However, if ...
6
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1answer
181 views

Feasibility of Giant Caterpillar Archetypes

Note: This question is not about the feasibility of giant caterpillars. That is covered by the addition of magic. However, evolution and natural selection still apply to magical beings (and I love ...
4
votes
1answer
173 views

Hard Science Superhumans [closed]

For my story, I want to create a group of superhumans- to be clear, not humanns with powers, but just humans who have been bioengineered beyond normal human capabilities. This can be something with ...
12
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7answers
1k views

Is there any kind of biological mechanism that would allow a species with a naturally short lifespan to live longer through cannibalism?

There is a humanoid species whose natural lifespan/period of senescence is very short compared to other sapients of the setting(around 20 years). They have similar levels of intelligence to humans and ...
4
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5answers
1k views

Evolutionary pressures for carnivorous elves

In a fantasy world I am creating, there exists a race of elf-like hominids that exist along side other races in this world. Note the "elf-like" portion as while they do have: Pointy ears (...
5
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4answers
748 views

is it possible in a given world to ride a triceratops and so how would it work?

I've been thinking about this world that's been in my mind and one of the things in it are drake knights which are warriors who raised and ride domesticate breed of triceratops like the war elephants ...
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1answer
93 views

Explaining Deathwatt

The Atomic Deathworm. An interesting concept, one I adapted. Living in sand is not likely for a worm, unless, of course, that sand is near or in water-plenty of worms live in wet sand. However, ...
2
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2answers
71 views

How Feasible are Weaponized Wings for Flayt?

Flayt, like Viji, are a race of anthropomorphic creatures, most resembling birds and around the size of a human. Back when I first imagined them, Flayt were essentially giant birds, with spotless ...
-1
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5answers
182 views

Would it be possible for someone with super-strength to literally reach down someone's throat and pull their heart out intact?

We hear this term from time to time, but I highly doubt that a normal human being is capable of doing such a thing. However, if someone was physically strong enough to tear through the various tissues ...
2
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2answers
89 views

Life on a planet with little axial tilt

As we know Earth has axial tilt and a nearly circular orbit. What if there was a habitable planet with almost no axial tilt? Obviously there wouldn't be seasons induced by tilt, instead the seasons ...
3
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0answers
67 views

What is the advantages and disadvantages of a creature capable of splitting sections of their wings apart?

I was trying to make a creature for a fictional dimension that is extremely hot and has many cliffs and difficult to maneuver areas, leading me to the conclusion that flying creatures would be ...
2
votes
1answer
73 views

How can my character transform without losing their powers?

I'm writing a story about a character who can manipulate the cells of any living organism - himself, others, plants, soil, etc. His power is psionic-based and stems from his brain. In my story, I've ...
-4
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1answer
85 views

Interstellar Evolution [closed]

Is it possible for a species/ecosystem to travel the stars? I'm curious what this would look like. How many generations would it take to adapt to a planets atmosphere and propel a seed colony carrying ...
-2
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2answers
119 views

Can owls, cats and others visual nocturnal animals see in moonless nights?

Im working in a moonless xeno planet and i want nocturnal creatures. I have animals that use smell, ear and touch, but im not sure about vision. I mean, animals and persons need a tiny bit of light ...
3
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3answers
124 views

Biological differences between people from space-bound colonies and planet-bound colonies

So I wrote a question a little earlier about the differences in mindset between people born from planetside colonies vs. those born in space [it's linked to save me from explaining the whole system - ...
3
votes
1answer
76 views

How should a balloon alien’s gas bladder work?

How do floating aliens work? They are portrayed as having a large gas bladder or sack that keeps them neutrally buoyant while they propel themselves through the air. A notable example of this is ...
3
votes
1answer
37 views

Adapting Rhydars into Carnivores

Yep, that's right, another Rhydar question. This one features yet another unusual trait of Rhydars: they are carnivorous, more or less. That's right, if you enter a Rhydar's territory, they won't just ...
2
votes
1answer
52 views

Feasibility of Echolocating Rhinos Weaponizing Said Echolocation

The title says it all. This question is about Rhydar, echolocating mutant rhinos, which are even more violent and aggressive than their conventional counterparts, specifically about weaponizing ...
5
votes
3answers
103 views

How Could Giant Caterpillars Come to Prey On Leafmaw?

Leafmaw are terrible monsters. Evolved from hydras or octopi (which developed to live on land), they possess the Mimicry enchantment, but unlike Octoplop, lack the ability to mimic anything but bushes....
3
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3answers
103 views

Explaining an Echolocating Rhino

Recently, I came up with an unusual creature I call a 'Rhydar.' (Rhino+Radar? Eh?) These creatures are aggressive beasts, rhinos that have been mutated by post-apocalyptic conditions into hostile &...
4
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2answers
215 views

Collect powers from human body via miniature implantation

How much energy can we draw from miniature implanted device that collects energy from human body? The goal is to design a type of implanted device in human body used to communicate over a distance, ...
2
votes
1answer
96 views

Would it be possible to create a humanoid that outputs fire from it's skin [duplicate]

Many stories [especially stuff like manga or anime] contain characters with the ability to output flames from their skin. This would require heat resistant skin while still outputting said flames / ...
5
votes
2answers
79 views

Mesothermic clothes? [closed]

I've been agonizing over this for a while now. In my world, there are a group of lizardmen called the Varal. They live in desert climates are mostly inspired by predatory lizards like Moniters & ...
7
votes
2answers
186 views

Does having a hind foot on a digitigrade legs make running slower?

I have designed an animal that lives on a low-gravity planet. It has bird-like digitigrade legs with raptor-like claws, similar to the image below, except with two wider toes instead of three in the ...
5
votes
2answers
129 views

Would having prehensile feet with finger-length toes impair running, walking, jumping, or other foot-based activities in a human?

Exactly what it says on the tin: would having prehensile feet with human finger-length toes impair running, walking, jumping, or other foot-based activities in a human? Presume that, when carrying out ...
3
votes
3answers
500 views

How can a vampire produce T cells at home?

Let's say that there's a vampire that consumes human blood for a regular re-infusion of T cells - both a convenient way to explain why they don't need massive amounts of it (you only need a few, and ...
2
votes
1answer
106 views

Would a Nictating Membrane make better blackpowder Infantry?

From matchlocks to percussion caps muskets and rifles produced (to vary degrees) sparks, smoke, and granules which had the chance to injure the eyes, or even blind, the shooter. For smoothbore ...
14
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6answers
2k views

How would one go about making a subdermal Faraday cage?

Exactly what it says on the tin: how would one go about making a subdermal (i.e. under the skin) Faraday cage? Specifically, are there any physical or biological principles that could be applied to do ...
1
vote
1answer
67 views

What would the effects of a muscle-wrapped mesh of a circulatory system be on a human?

Let's say that there is a biomodified human. Their circulatory system is something of a mesh; there are artificial connections between their blood vessels wherever physically possible, generally at ...
1
vote
1answer
506 views

Are there any physical or biological principles that could be applied to electrically ground the human body?

Exactly what it says on the tin: are there any physical or biological principles that could be applied to electrically ground the human body? This could take the form of genetic alteration, surgery, ...
5
votes
6answers
1k views

Flight in Zero Gravity

In short: my last post was about a world of flying islands. The world is like a huge gaseous sphere (with the same gases as the Earth's atmosphere, but without the effects of pollution) with several ...
3
votes
2answers
126 views

What sounds would this creature make?

I am making a creature with a mouth that opens four ways, has four tongue-like things on each mouth flap and just has a giant hole in it’s mouth that goes into its stomach and lungs. It still has ...

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