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Questions tagged [biology]

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

5
votes
6answers
376 views

Would multiple fantasy races eventually become homogenous?

In a setting with multiple sapient fantasy races (ie, elves, orcs, humans, dwarves), assuming these races could interbreed and this activity became common, would they eventually reach a point of ...
1
vote
3answers
268 views

How can I describe a substance that allows for suspended animation while keeping the mind active?

I am a collector traveling from planet to planet, who believes that art is an expression of human emotion and feeling, and can come in all types of forms. Many greats, such as Picasso and Van Gogh, ...
5
votes
2answers
187 views

Creating chimera virus by rogue scientist

In my world there is a rogue scientist who wants to wipe out at least 90% of humanity. He's has a sample of measles which are very contagious but he needs something new. Could he merge measles with ...
11
votes
2answers
294 views

Speculative Biology of a Haplodiploid Humanoid Species

In haplodiploid sex-determination system, female/diploid individuals are developed from fertilized eggs by means of sexual reproduction, while male/haploid individuals are developed from unfertilized ...
35
votes
10answers
5k views

Anatomically Correct Carnivorous Tree

How might a carnivorous tree look or work? The following conditions must be met: Consumes members of the biological kingdom 'Animalia' Possesses something resembling a trunk or stem of any kind ...
7
votes
6answers
175 views

How to separate male and female members of a “lizard like” species

The Gaals are a satient humanoid race, of magic origin. They were created by the last of the dragons as a legacy of his race to the world. They are humanoid, but with no hair and scales all over their ...
9
votes
5answers
167 views

Reality check: Is this a plausible way to breed raccoons?

You’re a lone immortal who’s decided to breed raccoons to a human-level intelligence (over the course of hundreds of thousands or millions of years). To do so, you need to both feed a significant ...
7
votes
3answers
152 views

Genetic exchange between animal and plant, Elves love trees

This question has its origins in the word "dendraphile" used in a YouTube comment. It was used in an insult used by dwarves towards elves. My chain of thought then was that the dwarves would use ...
4
votes
2answers
159 views

Could a tree evolve to have vastly varying shades?

I was wondering whether it would be feasible to have a tree that at times may have light green, at other times dark green leaves. Why would a tree evolve to change the shade of its leaves? Yes, I am ...
6
votes
4answers
1k views

How can a demonic viral infection spread throughout the body without being noticed?

Demonic possession occurs when an evil spirit hijacks the biological system of an organism, corrupting it and taking control of its functions. Although powerful, the possession eventually breaks down ...
2
votes
2answers
121 views

Could bio-luminescent plants survive in total darkness for ~3 months annually?

If a three-month dark period was a normal, recurring, part of a 15-month calendar, and plants had evolved to be bio-luminescent, could they survive? Would only some survive and, if so, would it be ...
34
votes
16answers
8k views

Best species to breed to intelligence

I’ve included more background below, but the TL;DR is that you’re a lone immortal who’s decided to breed some species of animal to a human-level intelligence (over the course of hundreds of thousands ...
2
votes
0answers
165 views

If a boy was tattooed on his back, would the tattoo more-or-less sruvive into adulthood intact? [closed]

If a child, say, a white, ten year old boy, got a big tattoo on his upper back (read: shoulder to shoulder), would it change a lot as the child grew into adulthood? Since the early-ish industrial ...
4
votes
2answers
307 views

Which sounds could a tongueless person produce?

In my world, officials dealing with sensitive information have their tongues amputated. Naturally writing and a special, government-only sign-language are the main forms of communication, but ...
11
votes
7answers
1k views

How could a humanoid creature completely form within the span of 24 hours? [closed]

I have a strange idea, I want to reality-check. But first, there's a thing to elaborate on. So, there are these undead creatures, zombies, skeletons, Michael Jackson, who appear in large numbers ...
11
votes
4answers
2k views

If quadruped mammals evolve to become bipedal will their breast or nipple change position?

As the title says, you know stuff like minotaur, lycanth or werewolf, cat or dog folk, etc especially for the female specimens. I want to know what happen if quadrupedal mammals which usually have ...
1
vote
1answer
65 views

Life in Jupiter-like conditions? [duplicate]

In a neighboring star system to my Conworld, there is a jupiter-sized planet that many of the species believe to harbor life. The star it is orbiting is a red dwarf, and the aforementioned "Re-Jove" ...
1
vote
1answer
137 views

What accommodations would a giant need?

I'm making a human female who's size was multiplied by 10. I need to know what sort of accommodations she'd need to make up for any disadvantages. This is in the modern day, so 21st-century medicine ...
5
votes
7answers
265 views

How would a military counter the use of genetically modified insects used to defeat CBRN protective gear?

One military has developed insects with strong jaws capable of chewing through the weaker parts of CBRN (Chemical, biological, radiological and nuclear defense) gear and then injecting neurotoxins ...
3
votes
1answer
74 views

How long to recover from muscle atrophy?

For context, I'm currently working on a short story series centered on a young man living in a dystopian America. This U.S. government keeps its 'undesirables' in medically-induced comas (long story ...
5
votes
3answers
149 views

Would a life form with the intelligence of a human but without an appendage for manipulating its environment be able to have advanced technology?

On another planet there is a life form that has the same level of intelligence as humans on Earth, but it has no appendage to manipulate its environment. It has similar social structures to humans ...
8
votes
1answer
93 views

Rib size to body size conversion

In lots of barren, deserted or otherwise destroyed landscapes, there are bones of long dead animals to be found. Sometimes, it's a skull, sometimes, these are rib-cages, or ribs alone. And ...
7
votes
2answers
225 views

Could an octopus ride a bicycle?

I'm imagining a scenario where there is a conflict between humans and intelligent octopuses. The humans' main mode of transport is the bicycle. The octopuses decide to stage a night raid whereby they ...
25
votes
9answers
7k views

I need a disease [duplicate]

I am struggling to find a disease/medical condition for my character. My character is 16-year-old female with a younger sister that doesn't have the disease. If you could please help, here is the ...
11
votes
5answers
421 views

What minerals that are more durable than calcium would be suitable for bones?

Edit: I am asking in the context of alien life, should have specifyed that to begin with. I have many ideas for fantasy/sci fi races, and one that I kept coming back to is a species with bones that ...
6
votes
8answers
256 views

Could a medium sized mammal in the order carnivora evolve to be bipedal?

In the movie Guardians of the Galaxy (and a few others), we meet a bipedal raccoon known as Rocket (who I am aware did not evolve to be bipedal, but I am using him as an example). I honestly love the ...
7
votes
1answer
126 views

Can the human body hypothetically be magnetized/magnetically aligned?

I was thinking about how an MRI uses a strong magnetic field to align the spins of hydrogen atoms in the body. What I was wondering about was if the human body experienced a magnetic field much ...
9
votes
4answers
1k views

Pre-plastic human skin alternative

In my pre-plastic world there is a killer who removes unblemished skin from their victims and replaces it with a non-human 'skin', so that one can't tell the replaced skin from the remaining human ...
7
votes
1answer
94 views

Is muscle plasticity the same thing as when muscles regenerate from wear and tear?

Information I am writing a fantasy sci-fi, that is almost the same as our reality, the only difference being humans in this world are capable of using drugs (serums in their world) to improve their ...
6
votes
2answers
1k views

Air bladders in bat-like skin wings for better lift?

Answers to this question note that human (and by extension mammal) wings would use naked skin instead of feathers, as we see on bats. However, with feathers, birds can have wings with shaped more like ...
10
votes
6answers
1k views

How to achieve cat-like agility?

In my world there human-animal hybrids. My protagonist is a snow leopard-human girl (outwards looks almost completely human, except for the tail). These hybrids have been created through experiments, ...
5
votes
2answers
303 views

What range of colors is it physically possible for a humanoid race's skin to have? [closed]

My story takes a sort of Shadowrun-esque approach to the concept of fantasy races, in that all members of fantasy races are, or are descended from, former humans transformed by magic, though in this ...
13
votes
13answers
3k views

How to make an animal which can only breed for a certain number of generations?

What would be the best way in which to genetically modify (or create through some other method) an animal which breeds normally for a certain number (50?) of generations before becoming sterile? ...
6
votes
4answers
255 views

How can a person become completely mute without external indications?

I have searched for a while now, but I cannot find a definite answer. A character I am writing has been captured by the antagonist, operated on and released, now completely mute. I've looked ...
6
votes
3answers
260 views

Most effective melee weapons for arboreal combat? (pre-gunpowder technology)

The creatures I am working with are primate-like, hexapodal aliens with a terrestrial/ arboreal lifestyle. On flat land they are able to walk bipedally, freeing up their top 4 arms for manipulating ...
8
votes
3answers
495 views

Would color changing eyes affect vision?

I am writing a medieval fantasy story in which there is a race of humanoids who have multicolored eyes. Their eyes may change to bring out one color or another if they are experiencing very stressful/...
2
votes
12answers
484 views

How could a same sex couple have children?

In my current work, I want same sex couples to be fully integrated in society. As it is set in a medieval fantasy world, survival of the human species relies on having children, so same sex couples ...
10
votes
5answers
269 views

How to justify frogs taking over?

A cool thing to imagine would be a world where the land was dominated by megafaunal frog-descendants, as it is/was by mammals today, dinosaurs before the mammals, and non-mammalian synapsids and ...
1
vote
0answers
58 views

How would I build a civilisation of multiple worlds around multiple suns work? [closed]

I’m building a group of magical civilisations, in which there are seven suns, orbiting a much larger sun, each with their own planets. There are forty planets in total. Some are moons orbiting gas ...
3
votes
7answers
676 views

What items from the Roman-age tech-level could be used to deter all creatures from entering a small area?

Please assume the following: There is a item on the ground and I want nothing but bare earth touching it. I cannot move the item myself. The item is impervious to fire. I cannot afford to guard ...
3
votes
4answers
163 views

What would a bioengineered human-predator look like? [closed]

Read (and watched) 'After Earth', where humanity has fled a dying Earth to colonise a new world. Unfortunately, for whatever reason, some intelligent aliens decide to periodically send waves of ...
5
votes
1answer
143 views

Is it possible to create rage virus from 28 Days Later?

In 28 Days Later the Rage Virus causes uncontrollable aggression and changes in personality. Is such virus even possible in principle? I'm not talking about rabies but rather about a genetically ...
3
votes
2answers
199 views

Making iron tools from blood [closed]

So, I read a while ago several threads about making iron objects/blades from blood. In my conworld there are giant predators that would, according to my calculations, have enough blood so that 12 of ...
-3
votes
3answers
225 views

Are atoms present in the vacuum of space?

I'm currently writing this story where an intelligent lifeform, instead of human eye-sight, is able identify the chemical composition of their surroundings, by detecting and "mapping" all the atoms ...
8
votes
5answers
216 views

Living nests for insects - Part 1: Optimal Hive shape

I've been playing with the idea of living nests for insects for a while now to help populate my worlds. The idea is that they don't build a static nest out of wood pulp and other material but have a ...
42
votes
15answers
9k views

For what reasons would an animal species NOT cross a *horizontal* land bridge?

In my worldbuilding project, 2 continents located on roughly the same latitude are connected by a land bridge. Both sides of the bridge are surrounded by a temperate grassland, and the lack of seasons ...
12
votes
6answers
3k views

Lethal sonic weapons

Sonic weapons are frequently used by military circles as non-lethal irritants to deter opponents. My question is; could a naturally evolved organism kill, or at least incapacitate, small prey using ...
9
votes
7answers
421 views

What could justify an animal photosynthesis?

Photosynthesis does not provide enough energy to allow animal activities on its own (see this post for example). But can we think of a species using photosynthesis as a secondary energy source? Here ...
6
votes
4answers
499 views

Uplifted animals have parts of their “brain” in various locations of their body. Where?

Looking at the case of Mike, I realized decentralizing the brain might not be infeasible. The idea is if Horus, the brown falcon, doesn't have enough room in his skull, then why not move various ...
9
votes
7answers
4k views

Is there really no realistic way for a skeleton monster to move around without magic?

One of the solutions I think is making the muscle go inside the bone, something look like an exoskeleton creature. either mechanical or organic making the artificial muscle developed inside the marrow,...