New answers tagged

1 vote

Is an atmosphere's oxygen partial pressure or concentration more biologically significant?

It's the partial pressure that matters for biological processes. There is a minimum pressure of oxygen you need to live. There is a somewhat higher total pressure you need to live because at the ...
4 votes

Is an atmosphere's oxygen partial pressure or concentration more biologically significant?

Take a look at the Hyperbaric chambers for both medical purposes and treating decompression sickness. Some of the hard chambers go up to 8 atmospheres and include 100% oxygen , but with scheduled air ...
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5 votes

Alternatives to bone that can be turned into weapons?

It has been already done by humans: allow me to introduce you the leiomano The leiomano is a shark-toothed club used by various Polynesian cultures, but mostly by the native Hawaiians. Leiomano is a ...
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2 votes

Shape and diversity of chemotrophic plants

Tree with roots. source Your organism contains bacteria that want to oxidize methane and H2S with oxygen. They will not find the oxygen in the same place as the methane and H2S because if these ...
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0 votes

Primitive weapons built from resin?

There are good answers here already, and yes, proper composites would work best, but may need better tools to be build, so here's my spin on it. Thus let's look into Types, Performance and Curing of ...
0 votes

Weaponisation of a dragons wing flap?

It depends on how heavy do you want your dragon to be. If you want to make it realistic keep in mind that birds and pterosaurs had light bones that were either thin, hollow or both. With that in mind ...
5 votes

How many generation will it take for the wild genes of the cows to resurface?

Based on productivity? Ideally never. Your future farms where humans aren't present and cattle is selected solely on productivity with no concerns for aggressiveness may sound like an ideal place for ...
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3 votes

What gene could have a mutation that makes humans have blubber?

Frame chalenge: Pobably it would not be a single gene that could give humans blubber. Gabriel Iglesias identifies six levels of fat. Big Healthy Husky Fluffy Damn! Oh! Hell no! Your larger folk are ...
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1 vote

Would insect farming be viable for a preindustrial society?

This is already a thing in our world I know people from a rural part of Honduras where it is common to raise insects as food. The area they are from is still pre-industrial with most people living on ...
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1 vote

Would insect farming be viable for a preindustrial society?

No, even with modern technology insects farming for consumption is a bad idea. High population density makes farmed insects extremely prone to parasites and disease. An EU study on insect farming ...
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0 votes

Could crystals grow on living things?

The problem is, this is a bird. And if it flies, crystal shell is not the best, or even a plausable option. Fancy beak Crystal is heavy, not so flexible, brittle, and offers very little compared to ...
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1 vote

How to stop Jimmy’s (self-conscious) limbs from rebelling?

Stupid limbs So, limbs can think. But how smart are they? We can effectively remove the limbs capability of rebelling or refusing to obey. Afterall, some of the most long-lasting governments and ideas,...
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0 votes

Reasonably tougher humans against falls, concussions etc

Are we talking normal falls, or accidents? If the first, then you need a single mechanism to absorb impacts; not being an unforeseen accident, the body has the time it needs to orient itself to bring ...
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0 votes

Reasonably tougher humans against falls, concussions etc

Prosthetics You can't break your ankles if you don't have ankles! Falling from 2-10 meters is harsh, but not when you have giant springs attached to your legs. Sure cutting off your feet to fit the ...
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0 votes

How could a creature derive energy from radioactive elements?

Your question doesn't make any sense, and here's why. This creature has extreme regenerative properties so damage from the radioactivity won't be an issue. If your animal can tolerate radiation ...
2 votes

How to stop Jimmy’s (self-conscious) limbs from rebelling?

Corporal punishment. In the most literal sense. Misbehaving regions are punished by the other members of the corpus collective, in a manner appropriate to the crime and body region. The exact nature ...
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8 votes
Accepted

How to stop Jimmy’s (self-conscious) limbs from rebelling?

Jimmy is a human octopus/arthropod. Jimmy over here is a pretty special fellow, for his species, because unlike humans, whose brains are pretty centralized and coordinate essentially all bodily ...
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8 votes

Could any photosynthesis occur at 5.5 AU on a warm planet?

At that distance, during the (week or so?) half orbit when the planet's "dark" side is facing the G star, the peak illumination will approach 1/(5.5^2) that of Earth's noonday tropics (basic ...
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16 votes
Accepted

Can an animal have a body covered with "hearing" hair?

Flies and other invertebrates posses already this capability: the little hairs they have on their bodies allow them to perceive pressure waves and react to them. Trichobothria (singular ...
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5 votes

What struggles would a ten-foot tall humanoid face in daily life?

I assume they will swim horizontally in the water. If so, then upright walking will cause their hearts to have some problem against gravity. Instead of pushing/pulling blood from several inches high, ...
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14 votes

What struggles would a ten-foot tall humanoid face in daily life?

Starvation. /Towns have roughly 100,000+ individuals at any given time and send out multiple hunting parties a week)/ This is 100,000 individuals in a fixed location that sustain themselves by hunting ...
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0 votes

What Changes Are Needed To Make A Land Vertebrate More Than 100 Tons?

The reason why land creatures don't grow large is gravity. On Earth, land animals can grow to 100 tons, as that is the maximum weight that their skeletons can support. For insects that is even harder, ...
0 votes

Primitive weapons built from resin?

Resin weapons... Since you mentioned some biological wiggle room and an alien planet with environment conditions close to earth, it kidna depends on the resin types and qualities. Lets categorize some ...
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1 vote

What Changes Are Needed To Make A Land Vertebrate More Than 100 Tons?

So, we need a land animal, who weights 200-500 tons. "6 limbs, at least one set of heart and lungs for each major section of it's body, with extra limbs for support and even skeletal structures ...
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1 vote

What Changes Are Needed To Make A Land Vertebrate More Than 100 Tons?

You'll have to deal with the square-cube law. For the bone structure, this could be solved with stronger bones, thicker bones, and/or multiple limbs. For the heart, there's having multiple hearts, or ...
2 votes

Can knowingly and willingly murdering someone interfere with a women's menstural cycle?

Yes. See the attached review paper Functional Hypothalamic Amenorrhea. No need to read it all. Let's just look at the first paragraph with the important part in bold. Nowadays, more and more ...
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2 votes

How Could an Organism Evolve "Unintentionally" into a Cyborg?

The current nature has some examples that could be used in analogy for technological waste. Example: Phyllobates vittatus This is a poison frog that gets its poison by eating certain insects. So if in ...
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3 votes

How Could an Organism Evolve "Unintentionally" into a Cyborg?

They use electrical components to shock people. A simple arrangement of two electrical components evolves a basic component to deliver an electrical shock. This is used to shock enemies, giving a ...
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8 votes

How Could an Organism Evolve "Unintentionally" into a Cyborg?

As a Sci-Fi idea, I think you are best off with nanobots designed to infiltrate, maintain and enhance neural pathways. In the future they'll be in the drinking water, much like fluoride today, as a ...
2 votes
Accepted

A Massive Organism Living In The Vacuum Of Space

Scientifically possible, though unlikely On the question of biological possibility, space does pose some challenges: a vacuum, radiation, and wild temperature variations to name a few. Luckily, we are ...
2 votes

A Massive Organism Living In The Vacuum Of Space

Hard to believe scientifically speaking There is a bit of a misconception about asteroid belts: they are not that dense of elements. First of all they are not uniformly spread. Secondly you can find ...
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6 votes

How Could an Organism Evolve "Unintentionally" into a Cyborg?

Symbiotic Medical Waste: My answer for this is similar for my answer to this question, What would encourage multiple animal species to evolve human features simultaneously?. In that case, it was ...
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14 votes

How Could an Organism Evolve "Unintentionally" into a Cyborg?

Extremely unlikely There are two major hurdles: there is not nearly enough uniformity in the high-tech waste. the life-form will probably need to be able to precipitate metals in its biology (which I ...
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1 vote

Primitive weapons built from resin?

The Rift War Saga utilises resin or, rather, lacquered wood as an alternative weapon and armour. As with resin in real life, you could incorporate a process for the conversion of the tree sap to a ...
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1 vote

Primitive weapons built from resin?

I think @DWKraus is on the right track with composites. Looking at actual composite bows, they are made from a combination of a thermoplastic or thermoset resin with a fiber or filament like glass. I ...
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8 votes

Primitive weapons built from resin?

Resin from the Xylonean tree combined with the acidic fruit juice of Tsaylean bush causes resin to harden to become a strong chitin like substance. Instead of using always hard material that is ...
  • 7,283
19 votes

Primitive weapons built from resin?

The Plywood Jungle: Biology is capable of amazing things. But it doesn't always behave like you want it to in real life. Thank goodness for the power of the pen. There is nothing physically or ...
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0 votes

What are potential avenues for firearms and weapons technologies for a biotech-centric species?

This is easy. The raw materials for black powder are charcoal (cellulose that is anaerobically reduced to mostly carbon), nitrates (urea is the common one), and sulphur (animal manures). The more ...
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4 votes
Accepted

How large does a dragon have to be for a hunter to enter its stomach through its throat?

31 meters long, from head to tail. I pasted your Diagram of a Dragon in MS Paint and inserted a straight line across the narrower visible section of the esophagus, right next to where the trachea gets ...
6 votes

What are potential avenues for firearms and weapons technologies for a biotech-centric species?

Don't try to beat the humans at their own game. Play to your own strengths. You are a biotech species. Engage in biotech warfare. Make gratuitous use of chemical and biological weapons. Did you know ...
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12 votes

What are potential avenues for firearms and weapons technologies for a biotech-centric species?

They rely on drone warfare. Metal and manufacturing is inherently better suited towards moving an object at immense speed. You're never gonna match steel for sheer durability towards rapid movement. ...
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5 votes

What are potential avenues for firearms and weapons technologies for a biotech-centric species?

This race generally seems like the type not to fight for themselves? If they've spawned critters to do everything else for them I'd expect spawned critters for fighting as well, most likely Starship ...
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7 votes

What are potential avenues for firearms and weapons technologies for a biotech-centric species?

When you want biological firearms, bombardier beetle is the answer. How the bombardier beetle works: The spray is produced from a reaction between two chemical compounds, hydroquinone and hydrogen ...
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1 vote

Physiological consequences of being a brain in a jar plugged into a robot body

The brain still perceives. The nazi doctor was mad, but not angry and not mean. The doctor was aware that his dying brother's brain destined for the jar would suffer for lack of sensory inputs. The ...
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10 votes

How large does a dragon have to be for a hunter to enter its stomach through its throat?

The only animals which could swallow an adult human whole witout tearing their bodies apart first are giant constrictor snakes, which squeeze their prey to death first before swallowing, to avoid the ...
9 votes

How large does a dragon have to be for a hunter to enter its stomach through its throat?

The dragon needs to be the size of a sperm whale. Reference: Swallowed by a Whale Fair Use Quotation: Late that night, working by lantern-light, the tired crewmen removed the stomach of the whale and ...
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3 votes
Accepted

How could dryads realistically grow plants out of their body?

I would say there are two routes you could take. The first of which would be a combination of Euglenoids, endosymbiotic theory, and an advanced (or just different) endocrine system. I wouldn't ...
8 votes

How could dryads realistically grow plants out of their body?

Horny Protrusions. The Dryad has horny protrusions all along the body. There are small holes in the horns. The plants grow out of these holes with their roots anchored to the lattice structure on the ...
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2 votes

How could dryads realistically grow plants out of their body?

Maybe they don't grow the plants "out of their skin", but merely "on their skin"? Like lichen that grows on trees or ivy that grows on walls. Maybe their skin secretes some ...
7 votes

How could dryads realistically grow plants out of their body?

Who's to say that on your fantasy world life has taken a different path leading to blurring of lines between what is a plant and animal? You mention your fantasy dryads basically just humans with a ...

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