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[mek42]

How are traits and preferences passed down to children?  If a potential breeding pair had synergistic traits and preferences, could they each be given a bed and table in overlapping space to encourage eventual mating?

[wierd]

My initial research into dwarven eugenics strongly suggests that there is no real heritability for any features other than cosmetic ones. Eye color, skin color, et al.

Actually useful features, like toughness, disease resistance, etc-- appear to be products of a hamfisted distribution algorithm. That is to say, the dwarven baby generator algorithm that creates the baby's personality and attribute scores uses hard set percentiles to determine that data. It does not appear heritable.

I am in the midst of a very long running and brutal experiment to determine with strong confidence just how true that is though.

Current preliminary data does not lend much credence to herited attribute data though.

[AutomataKittay]

Only physical traits, like strength, size and agility, gets passed down, with some variation. Mental traits don't get passed down, nor does preferences.

I think it's pretty much average of physical traits of the parents, plus or minus some variation, preferrably toward average. Guessing from animal breeding projects I've done, color does get passed down too, so there're that.

Locking dwarves that seems like wonderful traits into a room will work as long as they're within 10 years of age and doesn't bears a grudge. It can take a bit for them to get hooked up, though.

If you're looking for specific preference, no other way to do it but to start cracking out as many as possible until you find the trophy one. Toss the rest into the military when they comes of age as fodder, eh?

Course my experience's from animal breeding, dwarves breeds way too slowly and uncontrollably. I know there're no relationship between parent and children's preference through comparing them.

[wierd]

That doesn't look right automakitty.

I have breeding dwarves that are inspirations for birth control that have produced superior dwarven offspring.

Only appearance traits are inheritable. This might be somewhat useful, for things like muscularity/corpulence, but that just determines size and number of fat layers. Not how actually strong the dwarf is.

At the conclusion of my eugenics experiment, I'll have many generations of data to present. It is just going to be a really long while before then.

[AutomataKittay]

That doesn't look right automakitty.

I have breeding dwarves that are inspirations for birth control that have produced superior dwarven offspring.

Only appearance traits are inheritable. This might be somewhat useful, for things like muscularity/corpulence, but that just determines size and number of fat layers. Not how actually strong the dwarf is.

At the conclusion of my eugenics experiment, I'll have many generations of data to present. It is just going to be a really long while before then.

You could have better result from your research, I did said my experience's limited to animal breeding. Having them larger does helps with combat, and it seem to influence their strength somewhat. It's difficult to judge how some traits are passed down, size does at least, and colors. I have pretty good suspicion that anything that gets passed down are biased toward average by chance, from size breeding.

Still, I've not found any link between mental traits and preference for parents and children. Hairstyle probably doesn't either, at least I couldn't find any connection.

And I should say to take my experience with a barrel of salt, animal breeding's not really the best way to figure out how heritage works

[mek42]

Dwarves have variable size in current version?  I have one of the Therapist forks that displays size and they are all exactly 60,000.   Do I need to update my overseers assistant software?

[AutomataKittay]

Dwarves have variable size in current version?  I have one of the Therapist forks that displays size and they are all exactly 60,000.   Do I need to update my overseers assistant software?

Yep variable sizes, and there're a bug where only 1/10 of creatures grows up properly if fortress-born. It affects animals, too.

I don't uses utilities, but I recall seeing a mention that a different branch of therapist could check size. Something about it being a placeholder in whatever variant you might be using. Not so much as update, as a different version. There're script in some utilities, I think DFHack, that fixes the not growing up properly bug, too.

[acetech09]

You could have better result from your research, I did said my experience's limited to animal breeding.

Yes. Those are physical traits, which are handed down for apparently every creature. Attributes appear to be random. I have noticed that corpulence and muscularity are desired, though. Fat war dogs don't seem to move much slower but have built-in armor.

[kingubu]

Therapist doesn't currently return an accurate size AFAIK.  It returns the caste size from the raws.

[Button]

This isn't Therapist's fault, exactly. There is a bug in DF which causes all creatures' sizes to be fixed as caste size for the purpose of what weapons they're allowed to equip. I believe this is the value whichh Therapist displays.

[TruePikachu]

This isn't Therapist's fault, exactly. There is a bug in DF which causes all creatures' sizes to be fixed as caste size for the purpose of what weapons they're allowed to equip. I believe this is the value whichh Therapist displays.

I can confirm this.

[mek42]

This isn't Therapist's fault, exactly. There is a bug in DF which causes all creatures' sizes to be fixed as caste size for the purpose of what weapons they're allowed to equip. I believe this is the value whichh Therapist displays.

That makes sense, as weapon wielding is the context in which size is displayed in my Therapist.

[Snaake]

1-handed vs. Multigrasp wielding of weapons actually checks the individual's size though, or so I've read. Is there a dfhack command to get the size/other dwarf details, I couldn't seem to find one but I'm really new to dfhack.