Questions tagged [xenobiology]
For questions related to the biology of extra-terrestrial organisms. This tag implies the use of the science-fiction tag. Use the science-based or hard-science tags to impose greater scientific restrictions (see warning in tag wiki). The goal of this tag is to answer the question using known science.
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Airtight beaks?
I have a (moderately) hard sci-fi, in which there is a species (the Bethin) who are based on squids. They have the biological equivalent of a space suit for their skin, and use the mantle cavity as an ...
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How much time is needed to judge an Earth-like planet to be safe?
A colony ship has been sent to deep space to colonize an earth-like planet. Through astronomical spectroscopy, the atmospheric composition was found to be suitable for human life. But of course, ...
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Could alien species with blood based on different elements eat the same food?
In my Science Fantasy galaxy, I have several humanoid alien species with blood based on different elements, including iron (essentially human blood), copper (like Vulcans from Star Trek with green ...
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Possible binding agent for Chlorine in blood?
It is as the title says, is there any good agent for binding to chlorine in blood, for fauna that respirate such a thing. Like iron bonds to oxygen in our own blood, in order to transport it?
I tried ...
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Could an exomoon be bombarded by electromagnetic radiation from its parent gas giant and still be habitable enough for life to evolve? [closed]
What I'm trying to accomplish here is having a setting where complex electronics are not feasible or so difficult to shield that they're not worth the time. Mechanical technology is the rule on this ...
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How do floating plants get their trace nutrients?
The planet is a cold ammonia world. Its ocean is mostly made ammonia, with some traces of ices (mostly water ice) at the bottom of the ocean. The ambient temperature is 225ºK, and the pressure is 4 ...
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RE: Built In Terrariums [closed]
Back again!
Hi, I've decided to add context to this question and my previous oneby providing how I'd think the environment would work, as well as the relationship between the host and terrarium ...
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How do these plants capture cosmic rays?
The planet is a cold ammonia world. Its ocean is mostly made ammonia, with some traces of ices (mostly water ice) at the bottom of the ocean. The ambient temperature is 225ºK, and the pressure is 4 ...
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How plausible is a Cryovenom?
In my science-fantasy world there is a creature that secretes a venom (called a cryovenom) whose proteins catalyze a spontaneous crystallization of the water inside the interstitial fluids and ...
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How do these trees not collapse? [closed]
I'm currently building a planet, an ammonia world with an average temperature of 225ºK and has a mass of 2 earth masses and a radius of 1.25 earth radii. The average pressure at sea level is 4 ...
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Designing giant space creatures becomes a popular fad in a super advanced post-scarcity society. How large can space creatures get?
This is a completely post-scarcity society. Robots and automated systems run the economy and most research. AIs are commonplace, and available to all in the human-like, completely obedient, and super-...
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How does life on this planet get enough iridium?
I am currently building a planet that weighs about 4 earth masses and it's radius is 2.3 times larger than that of earth's. It is an ammonia planet (as the title suggests), and has ammonia oceans with ...
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Pathogenic Hive-Intelligence When Critical Mass is Reached
Could there be a virus or amoeba or protist or bacteria (or fungal but that is over-used in pop culture) that infects humans (and possibly other lifeforms) that by itself is not sentient but as they ...
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Fire-analog on an ammonia planet
I am currently building a planet that weighs about 4 earth masses and it's radius is 2.3 times larger than that of earth's. It is an ammonia planet (as the title suggests), and has ammonia oceans with ...
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Beryllium photosynthesis for floating plants?
I am currently building a planet that weighs about 4 earth masses and it's radius is 2.3 times larger than that of earth's. It is an ammonia planet (as the title suggests), and has ammonia oceans with ...
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