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Danpyr worldbuilding
Posted: Posted March 14th by linguistcat

Since almost all the information about my Danpyr is from before I moved them to a space fantasy setting, I'm going to try and consolidate all the current info I have on them here. Any information about Danpyr that contradicts what I post here is considered no longer canon.

In the universe that I set the danpyr currently, the stars are actually godlike entities with personalities and mannerisms. To travel from one star system to another, the travelers need permission to leave the system by the first star, and permission to enter the second system by its star. This is mediated by priests and priestesses of various species.

The star the danpyr's planet orbits, Daneth, could be said to have a patient temperament. It does not send off flairs often and does not vary much in its light output. It doesn't have many strong connections to other stars but also has few other stars that dislike it strongly enough to bar the danpyr from their realms. Danpyr do have trouble with energy from highly variable stars or strongly energetic ones, however, so they mostly avoid traveling to those systems without having alternate sources of energy or protection from the excess energy. Danpyr don't get most of their energy directly from starlight but it does affect their health, much like how humans need to specifically ingest vitamin D if they don't get enough sunlight.

Danpyr have three sexes, all of which are needed to reproduce, but not all needing to be present at the same time. As a quirk of their sex determination system, volla (most similar to females in binary sex set ups, carries offspring) naturally outnumber derda and neri (two different near-male equivalents) combined.

There are 6 Replies

Look forward to reading more!

Posted March 15th by elemtilas

I had actually written some other things that for whatever reason didn't post :\

Anyway, the danpyr homeworld has plant equivalents in the form of biocrystals that use their star's light and elements in the environment to grow, as well as storing energy for later. While most creatures on the danpyr homeworld can derive some energy from their home star's light directly, they have an easier time processing it from the biocrystal plants, or other creatures. Most creatures on the planet also only need to ingest small amounts of matter, unless they are actively growing or healing from a wound or illness, or carrying young. Microorganisms and other decomposers are the exception to this and primarily gain energy through breaking chemical bonds.

Danpyr draw energy from a variety of sources, but when young, pregnant or healing prefer to ingest "animal" proteins. In a sense, they are omnivores but on a physical level they are obligate carnivores that have the ability to eat other things. Danpyr that travel off world and especially out of system can have more varied diets or much more restricted ones depending on local flora and fauna.

Posted March 17th by linguistcat

I, also, look forward to reading đź“– more.

Posted April 1st by chiarizio

What’s mating-season for Danpyr?
And what’s the season for giving birth?
And how long do they gestate?

Suppose for the moment we use Earth’s names for their seasons.
They have a Winter Solstice: (corresponding to our Dec 21), when their day is shortest and their night is longest;
A Candlemas halfway between Winter Solstice and Vernal Equinox; corresponding to our Feb 2;
A Vernal Equinox, corresponding to our Mar 20, when the days have lengthened and the nights have shortened to be equal in length;
A Beltane, corresponding to our May 1st, halfway between the Vernal Equinox and the Summer Solstice;
A Summer Solstice, corresponding to our Jun 21, when the day was longest and the night was shortest;
A Lammas, halfway between the Summer Solstice and the Autumnal Equinox, corresponding to about our Aug 1;
An Autumnal Equinox, when the days had shortened and the nights had lengthened enough to be equal, corresponding about to our Sept 21;
A Samhain, halfway from the Autumn Equinox to the Winter Sostice, corresponding to about our Oct 31;
and finally back to the Winter Solstice.

You haven’t said anything about their homeworld’s satellite(s), if any. So I have no reason to believe their reproductive cycles will be connected to anything like a Moon. (Among Earth’s creatures only Primates have menstrual cycles, and it’s a myth that any of them actually correspond to a lunar month. Women’s menstrual periods’ median length is 34 days and their mean is 28 days; 29.5 days is about a lunar month, and real women’s menstrual cycles vary from that considerably.)

I’m thinking that a totally unfertilised egg will stay in a volla’s reproductive tract a sixteenth of a year (around three weeks or 22.75 days if their years are about 365.25 days long) if no emale half-fertilises it to turn it into a gilgamete. After that her system will flush it out and try again.

But if she does successfully mate with an emale, the gilgamete will implant in her uterine lining ( does she have a uterus? Is it lined with endometrium?), and will be partially nurtured and partially protected for up to an eighth of a year (about six weeks or 45.5 days), until it is fully fertilised by a smale. If no smale fertilises the gilgamete to turn it into a zygote, it will die and be flushed out, and her body will try all over again from the beginning.

Gilgametes wont/can’t develop placenta unless and until fertilised by a smale. They do have yolk, and can implant, but then they remain dormant until the smale’s Gamete arrives.

Are volla females most sexually active for a quarter, or a third, or a half, of the year?
If a quarter, is it Candlemas to Beltane (late winter and early spring)?
Or spring (vernal Equinox to summer solstice)?
Or Beltane to Lammas (late spring and early summer)?
Or even Summer? (Summer solstice to autumnal equinox)?
Or some other quarter? (It will depend on how long they gestate and when they deliver).

If they’re sexually active 1/3 of the year, it could be Candlemas to Summer Solstice, or Spring Equinox to Lammas, or even Beltane to Autumnal Equinox. Or some other third, depending when they give birth and how long they gestate.

If they’re active half a year, I figure Spring Equionox to Autumn Equinox might be most reasonable. But again it depends when they give birth and how long they gestate.
Suppose they typically gestate 1.125 (one and an eighth) years. Perhaps give-or-take a 24th of year or some such thing.
Suppose they mostly ovulate and mate with emales during the quarter from Spring Equinox to summer solstice.
Suppose they mostly mate with smales in the quarter from Beltane to Lammas.
(So they’re active sexually for 3/8 — about a third — of the year).
Suppose they mostly give birth in the quarter from the summer solstice to the autumn equinox.

Does that seem right?

I figure food is going to be most available between Beltane and Samhain.
Between the Spring Equinox and Beltane there’ll be a lot of energy — sap rising and migrant animals returning and leaves budding and so on — but mostly it won’t be very big or much food yet.
Between Beltane and the Autumn Equinox there’ll be a lot of growing and flowering (do they have angiosperms?) and fruiting (?) and pollinating and honeygathering etc.
Between Lammas and Samhain the plants will be forming seeds and nuts and fruits.
Late-fruiting species like apples will have ripe fruit in the first half of autumn, between the autumn equinox and Samhain.
Other fruiting species might fruit in the last half of summer, between Lammas and the autumn equinox.
That’s why I suggested they’d probably give birth in that quarter of the year — Lammas thru Samhain, last half of summer thru first half of fall. ( Do they have any deciduous plants? Or any migratory flying creatures? Or any artesian wells that freeze up in the winter or autumn but start flowing again in the spring?)


Is any of that helpful?
I seriously doubt all of it is absolutely correct!


I can’t remember. Are the derda the emales and the neri the smales, or the reverse?


What’s their homeplanet’s axial tilt?
22.5 degrees? Or 20? Or 25?
Or 15? Or 30?

Does their planet have a big satellite that keeps its axis from flipping and keeps its insides tectonically active?

Does their star’s system have at least two giant planets? (Don’t think it matters whether they’re gas giants or ice giants.)

Edited April 14th by chiarizio


Posted April 15th by chiarizio

I haven't decided most of this, but I felt that it had been a bit too long since I'd replied. I am still thinking about this, however.

Posted April 25th by linguistcat
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