Forum Settings
Forums

Wrong to marry/have kids with second cousin?

New
Jun 25, 2024 8:54 PM
#1

Offline
Jan 2008
830
Is it? A lot of people seem to think it's weird. I mean first cousin I get, but second cousin is so distant they may as well not be related.
This topic has been locked and is no longer available for discussion.
Pages (3) [1] 2 3 »
Jun 25, 2024 8:57 PM
#2

Online
Dec 2021
4021
I see it in very simple terms; once a cousin, always a cousin. If you're anywhere on the family tree, it ain't happening. There's no deeper reason for me, I just don't wanna.
Jun 25, 2024 8:58 PM
#3

Offline
Sep 2018
14390
I do not mind such couples existing. To find someone who cares about you is a good thing. Genetically looks like they are practically unrelated.
Jun 25, 2024 9:00 PM
#4

Offline
Aug 2022
4340
Literally the only way you even know you have a second cousin in the first place is if you live in a place like Afghanistan where 3 generations of people live in the same house.

In the West you barely see your siblings OR parents.
Mao said:
If you have to shit, shit! If you have to fart, fart!
Jun 25, 2024 10:02 PM
#6

Offline
Feb 2016
14993
In many places, even first cousins are allowed to marry.
その目だれの目?
Jun 25, 2024 11:39 PM
#7

Offline
Mar 2020
153
The chance for second cousins having a disabled child is around 3%. It's low but still too risky to take the chance. Maybe third cousins would be alright.
Jun 26, 2024 12:04 AM
#8

Offline
May 2024
1557
Biology would like to have a word with you...
Jun 26, 2024 12:05 AM
#9

Offline
Sep 2016
21978
No, it's not even wrong to marry a sibling if the romance is consensual. It may not be completely right because of increased risks, but it's not wrong.
*kappa*
Jun 26, 2024 12:06 AM

Offline
May 2024
1557
Reply to vasipi4946
Literally the only way you even know you have a second cousin in the first place is if you live in a place like Afghanistan where 3 generations of people live in the same house.

In the West you barely see your siblings OR parents.
@vasipi4946 As a european...wtf are you talking about?😭
Jun 26, 2024 12:16 AM

Offline
Mar 2008
53423
That's the accepted norm in most of the world. Even a random stranger is anywhere from something like 16th to your 6th cousin.
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⣸⠋⠀⠀⠀⡄⠀⠀⡔⠀⢀⠀⢸⠀⠀⠀⡘⡰⠁⠘⡀⠀⠀⢠⠀⠀⠀⢸⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠁⠀⣀⠀⠀⡇⠀⡜⠈⠁⠀⢸⡈⢇⠀⠀⢣⠑⠢⢄⣇⠀⠀⠸⠀⠀⠀⢸⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⢰⡟⡀⠀⡇⡜⠀⠀⠀⠀⠘⡇⠈⢆⢰⠁⠀⠀⠀⠘⣆⠀⠀⠀⠀⠀⠸⠀⠀⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠤⢄⠀⠀⠀⠀⠀⠀⠀⠀⡼⠀⣧⠀⢿⢠⣤⣤⣬⣥⠀⠁⠀⠀⠛⢀⡒⠀⠀⠀⠘⡆⡆⠀⠀⠀⡇⠀⠀⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⢵⡀⠀⠀⠀⠀⠀⡰⠀⢠⠃⠱⣼⡀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠈⠛⠳⠶⠶⠆⡸⢀⡀⣀⢰⠀⠀⢸ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⣀⣀⣀⠄⠀⠉⠁⠀⠀⢠⠃⢀⠎⠀⠀⣼⠋⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠴⠢⢄⡔⣕⡍⠣⣱⢸⠀⠀⢷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⡰⠃⢀⠎⠀⠀⡜⡨⢢⡀⠀⠀⠀⠐⣄⠀⠀⣠⠀⠀⠀⠐⢛⠽⠗⠁⠀⠁⠊⠀⡜⠸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀ ⢀⠔⣁⡴⠃⠀⡠⡪⠊⣠⣾⣟⣷⡦⠤⣀⡈⠁⠉⢀⣀⡠⢔⠊⠁⠀⠀⠀⠀⢀⡤⡗⢀⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⢀⣠⠴⢑⡨⠊⡀⠤⠚⢉⣴⣾⣿⡿⣾⣿⡇⠀⠹⣻⠛⠉⠉⢀⠠⠺⠀⠀⡀⢄⣴⣾⣧⣞⠀⡜⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠐⠒⣉⠠⠄⡂⠅⠊⠁⠀⠀⣴⣿⣿⣿⣿⣻⣿⣿⡇⠀⠀⢠⣷⣮⡍⡠⠔⢉⡇⡠⠋⠁⠀⣿⣿⣿⣿⣄⠀⠀⠀⠀
Jun 26, 2024 12:34 AM
ああああああああ

Offline
Apr 2013
5720
I don't know, why don't you ask this at your next family reunion?

Yes, it's weird. You know it's weird.


This ground is soiled by those before me and their lies. I dare not look up for on me I feel their eyes
Jun 26, 2024 12:52 AM

Offline
Jan 2021
2431
Second cousin is not even inseki, it's just 2 people fucking.

Edit:here is a more serious reply.
let's see what is society justification of prohibition of incest and see if second cousin relationship stand in it.

1.Inbreeding.
let's choose to ignore that inbreeding doesn't even make sense as a justfication, and go with the mindset that risk of genetic deficiencies=evil. When it comes to procreation with a second cousin there isn't any probable risk of genetic deficiencies

2.Family dynamics
The possibility that family dynamics will cause power dynamics, thus taking a consesual & equel relationship off the table. This is usually being attributed to relationship with people who served as a parental figure or considerably older family member. In this case it just depend on your relationship with your second cousin. Most people don't have any meaningful family dynamic with their second cousin, personally i don't even know the names of my second cousins.

So yea, this your answer.
CielordJun 26, 2024 2:50 AM
Jun 26, 2024 12:54 AM

Offline
Jan 2021
2431
Jun 26, 2024 1:00 AM

Offline
Jun 2024
1830
Imagine family gatherings could be awkward for some, I guess.
Jun 26, 2024 1:03 AM
lagom
Online
Jan 2009
107446
if you care about genetic corruption then 3rd and 4th cousins are better to marry
Jun 26, 2024 1:23 AM

Offline
May 2024
1557

3% too high in my book. And the chances go higher if the incest keeps being practiced generation after generation in the same family. So at one point that tree gonna start reshaping...
Jun 26, 2024 1:35 AM

Offline
Jan 2021
2431
Reply to SimplyBrazen

3% too high in my book. And the chances go higher if the incest keeps being practiced generation after generation in the same family. So at one point that tree gonna start reshaping...
@SimplyBrazen Hardly unlikely that the incest will keep being practiced, due to the westernmarck effect.
Jun 26, 2024 6:16 AM

Offline
Dec 2016
7175
I mean first cousin I get, but second cousin is so distant they may as well not be related.

Just hear me out, but what about... a threesome tho?



Jun 26, 2024 10:06 AM

Offline
Sep 2016
21978
Stomiks said:
The chance for second cousins having a disabled child is around 3%. It's low but still too risky to take the chance.

What about 3% is "too risky" if unrelated people already have at least a 2% chance on average? Just 1% more is almost negligible.
*kappa*
Jun 26, 2024 10:43 AM

Offline
May 2021
5134
Three words... vomit, barf, throw-up
Jun 26, 2024 10:48 AM

Offline
Aug 2022
4340
It is wrong to marry and have kids...
Mao said:
If you have to shit, shit! If you have to fart, fart!
Jun 26, 2024 10:51 AM

Offline
Mar 2020
153
Reply to Zarutaku
Stomiks said:
The chance for second cousins having a disabled child is around 3%. It's low but still too risky to take the chance.

What about 3% is "too risky" if unrelated people already have at least a 2% chance on average? Just 1% more is almost negligible.
@Zarutaku I see. If that's the case, then I guess 5% would personally be my upper limit? Considering that percentage alone would equate to 400 million people possessing a genetic disorder with different varieties if I'm not mistaken.
Jun 26, 2024 12:21 PM

Offline
Sep 2016
21978
Reply to Stomiks
@Zarutaku I see. If that's the case, then I guess 5% would personally be my upper limit? Considering that percentage alone would equate to 400 million people possessing a genetic disorder with different varieties if I'm not mistaken.
Stomiks said:
Considering that percentage alone would equate to 400 million people possessing a genetic disorder with different varieties if I'm not mistaken.

Not really, that could only ever become the case if every couple would be such an incest couple with 5% risk, which is a highly unlikely scenario, even without an incest taboo. There also is more to consider, not every such disorder is actually severe, there are many mild ones that barely affect an individuals life, so the chance for severe cases would be much lower than 5% and modern medical examination makes it possible to detect some common disorders in early pregnancy and if it's a severe one, then abortion is (or should be) an option, because it further decreases the overall rate of bearing a severely disordered child. For example most unborn childs diagnosed with down syndrome are aborted nowadays, assuming that prenatal testing is available and abortion is allowed.
*kappa*
Jun 26, 2024 12:37 PM
tsukareta
Offline
Feb 2018
2649
Leaving aside the moral/cultural/religious question about it. Offsprings of incest relations have drastically increased chances of birth defects ranging from physical, intellectual and developmental issue. Saying dramatically, is a severe understatement. So with just that fact alone it should be taken with utmost seriousness to avoid. People aren't asked whether they would like to be born or not no? The weight of a single life isn't merely just a statistic to gamble with, specially when we're taking about the proven fact of increased birth defects from incest relations. There are over 8 billion people in the world, go out touch grass, meet more people and find another suitable partner.
Jun 26, 2024 12:45 PM
tsukareta
Offline
Feb 2018
2649
Zarutaku said:
Stomiks said:
Considering that percentage alone would equate to 400 million people possessing a genetic disorder with different varieties if I'm not mistaken.


Not really, that could only ever become the case if every couple would be such an incest couple with 5% risk, which is a highly unlikely scenario, even without an incest taboo. There also is more to consider, not every such disorder is actually severe, there are many mild ones that barely affect an individuals life, so the chance for severe cases would be much lower than 5% and modern medical examination makes it possible to detect some common disorders in early pregnancy and if it's a severe one, then abortion is (or should be) an option, because it further decreases the overall rate of bearing a severely disordered child. For example most unborn childs diagnosed with down syndrome are aborted nowadays, assuming that prenatal testing is available and abortion is allowed.

Just look up the birth defect and cousin marriage statistics of Pakistan. I have no clue where you are getting the 5% avg, but there you have it. Even with a "low" percent, when we're taking about numbers in hundreds of millions that's a massive number. For example, 5% of a 100 million sample size, is 500,000 5 million birth defects. Imagine the stress that would put on the social welfare expenses and policies of a country to take care of 500,000 5 mil people with birth defects in a pop of 100 million.
_Sunny_DayJun 26, 2024 1:04 PM
Jun 26, 2024 2:08 PM

Offline
Sep 2016
21978
Reply to _Sunny_Day
Zarutaku said:
Stomiks said:
Considering that percentage alone would equate to 400 million people possessing a genetic disorder with different varieties if I'm not mistaken.


Not really, that could only ever become the case if every couple would be such an incest couple with 5% risk, which is a highly unlikely scenario, even without an incest taboo. There also is more to consider, not every such disorder is actually severe, there are many mild ones that barely affect an individuals life, so the chance for severe cases would be much lower than 5% and modern medical examination makes it possible to detect some common disorders in early pregnancy and if it's a severe one, then abortion is (or should be) an option, because it further decreases the overall rate of bearing a severely disordered child. For example most unborn childs diagnosed with down syndrome are aborted nowadays, assuming that prenatal testing is available and abortion is allowed.

Just look up the birth defect and cousin marriage statistics of Pakistan. I have no clue where you are getting the 5% avg, but there you have it. Even with a "low" percent, when we're taking about numbers in hundreds of millions that's a massive number. For example, 5% of a 100 million sample size, is 500,000 5 million birth defects. Imagine the stress that would put on the social welfare expenses and policies of a country to take care of 500,000 5 mil people with birth defects in a pop of 100 million.
tsukareru said:
I have no clue where you are getting the 5% avg
Read the post I replied to, 5% is stomiks "upper limit" of being an acceptable risk, considering that 2-3% is the average of unrelated couples.
5% is also the risk of first-cousins offspring, according to this article anyway: https://www.thetech.org/ask-a-geneticist/articles/2015/risk-second-cousins-having-child-disability/
I tried to find the risk for full-sibling offspring, but it's hard to find credible data about this topic, I just remember a value from some years ago which was 9-10% or so, which is significant, but still manageable considering that only a fraction would be severe cases and assuming that prenatal testing with abortion is available. First generation inbreeding seems to be fairly safe overall, problems usually start if it becomes multi-generational without interruption, but even then it's still possible to have a low risk, if the family has "good genes" aka no heritable diseases.

tsukareru said:
For example, 5% of a 100 million sample size, is 500,000 5 million birth defects.
This is based on the same unrealistic assumption that stomiks made above, because it could only become the case if every couple of the entire population would be an such an incest couple with 5% risk, which is a near impossible scenario, even without any incest taboo.
*kappa*
Jun 26, 2024 2:49 PM

Offline
Jan 2020
776
Only on an anime forum would this conversation be happening.. Yes, if you are related in any way then it is wrong to be together.


« »
🍙 Koizumi Hanayo
Dareka Tasukete!!!
Jun 26, 2024 3:08 PM

Offline
Dec 2022
5909
No, as it doesn't infringe or impose on anyone. Moreover, inbreeding is the only way to purify the genome of the deleterious mutation load that is inexorably accumulated in an outbreeding population. Many neglect to mention it, but consanguinity is the driving force behind speciation, conferring recessive advantages in an adaptive population once it diverges from the colonising stock.


╔⏤═⏤╝ ╚⏤═⏤╗
Shaded Horizon


Jun 26, 2024 3:29 PM

Offline
Sep 2016
21978
Reply to Archean-Return
No, as it doesn't infringe or impose on anyone. Moreover, inbreeding is the only way to purify the genome of the deleterious mutation load that is inexorably accumulated in an outbreeding population. Many neglect to mention it, but consanguinity is the driving force behind speciation, conferring recessive advantages in an adaptive population once it diverges from the colonising stock.
@Archean-Return Sounds reasonable, but doesn't the family need to have a near flawless genome for that? Otherwise the inbreed might be doomed.
*kappa*
Jun 26, 2024 3:42 PM

Offline
Dec 2022
5909
Zarutaku said:
Sounds reasonable, but doesn't the family need to have a near flawless genome for that? Otherwise the inbreed might be doomed.
That's why I brought up the mutation load. Initial generations of a inbreeding population will express this mutational load that has been accumulated in the outbreeding population through deleterious recessive mutations, but will be reduced in the surviving offspring, eventually resulting in a population that expresses advantageous recessive phenotypes and increased fertility after enough generations. But because human populations are panmictic (i.e. favouring a random breeding strategy), you rarely see this happen outside of more remote groups.


╔⏤═⏤╝ ╚⏤═⏤╗
Shaded Horizon


Jun 26, 2024 6:43 PM

Offline
Jul 2021
304
meh, youve probably bred out all the incest genes by that point


Jun 26, 2024 6:55 PM

Offline
Mar 2008
53423
Reply to Archean-Return
No, as it doesn't infringe or impose on anyone. Moreover, inbreeding is the only way to purify the genome of the deleterious mutation load that is inexorably accumulated in an outbreeding population. Many neglect to mention it, but consanguinity is the driving force behind speciation, conferring recessive advantages in an adaptive population once it diverges from the colonising stock.
@Archean-Return
Where did you get that from? Ive only currently heard third cousins having children is known to have a genetic beneficial effect.
https://geneticliteracyproject.org/2018/08/03/marrying-your-cousin-there-may-be-evolutionary-benefits/
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⣸⠋⠀⠀⠀⡄⠀⠀⡔⠀⢀⠀⢸⠀⠀⠀⡘⡰⠁⠘⡀⠀⠀⢠⠀⠀⠀⢸⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠁⠀⣀⠀⠀⡇⠀⡜⠈⠁⠀⢸⡈⢇⠀⠀⢣⠑⠢⢄⣇⠀⠀⠸⠀⠀⠀⢸⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⢰⡟⡀⠀⡇⡜⠀⠀⠀⠀⠘⡇⠈⢆⢰⠁⠀⠀⠀⠘⣆⠀⠀⠀⠀⠀⠸⠀⠀⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠤⢄⠀⠀⠀⠀⠀⠀⠀⠀⡼⠀⣧⠀⢿⢠⣤⣤⣬⣥⠀⠁⠀⠀⠛⢀⡒⠀⠀⠀⠘⡆⡆⠀⠀⠀⡇⠀⠀⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⢵⡀⠀⠀⠀⠀⠀⡰⠀⢠⠃⠱⣼⡀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠈⠛⠳⠶⠶⠆⡸⢀⡀⣀⢰⠀⠀⢸ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⣀⣀⣀⠄⠀⠉⠁⠀⠀⢠⠃⢀⠎⠀⠀⣼⠋⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠴⠢⢄⡔⣕⡍⠣⣱⢸⠀⠀⢷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⡰⠃⢀⠎⠀⠀⡜⡨⢢⡀⠀⠀⠀⠐⣄⠀⠀⣠⠀⠀⠀⠐⢛⠽⠗⠁⠀⠁⠊⠀⡜⠸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀ ⢀⠔⣁⡴⠃⠀⡠⡪⠊⣠⣾⣟⣷⡦⠤⣀⡈⠁⠉⢀⣀⡠⢔⠊⠁⠀⠀⠀⠀⢀⡤⡗⢀⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⢀⣠⠴⢑⡨⠊⡀⠤⠚⢉⣴⣾⣿⡿⣾⣿⡇⠀⠹⣻⠛⠉⠉⢀⠠⠺⠀⠀⡀⢄⣴⣾⣧⣞⠀⡜⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠐⠒⣉⠠⠄⡂⠅⠊⠁⠀⠀⣴⣿⣿⣿⣿⣻⣿⣿⡇⠀⠀⢠⣷⣮⡍⡠⠔⢉⡇⡠⠋⠁⠀⣿⣿⣿⣿⣄⠀⠀⠀⠀
Jun 26, 2024 7:23 PM

Offline
Dec 2022
5909
traed said:
Where did you get that from? Ive only currently heard third cousins having children is known to have a genetic beneficial effect.
https://geneticliteracyproject.org/2018/08/03/marrying-your-cousin-there-may-be-evolutionary-benefits/
There was a study in Iceland where consanguinous couples who were third and fourth cousins had more fertility than those who were both more closely and more distantly related, so there is some awareness there. The link you posted is therefore likely referencing an "optimal" genetic equilibrium that has been postulated here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3275546/

It's much akin to how two separate inbred strains of livestock can be crossed to benefit from hybrid vigour, while benefitting from the reduced recombination load and genome cleansed of deleterious mutations that comes from their inherent stock.


╔⏤═⏤╝ ╚⏤═⏤╗
Shaded Horizon


Jun 26, 2024 7:34 PM

Offline
Mar 2008
53423
Reply to Archean-Return
traed said:
Where did you get that from? Ive only currently heard third cousins having children is known to have a genetic beneficial effect.
https://geneticliteracyproject.org/2018/08/03/marrying-your-cousin-there-may-be-evolutionary-benefits/
There was a study in Iceland where consanguinous couples who were third and fourth cousins had more fertility than those who were both more closely and more distantly related, so there is some awareness there. The link you posted is therefore likely referencing an "optimal" genetic equilibrium that has been postulated here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3275546/

It's much akin to how two separate inbred strains of livestock can be crossed to benefit from hybrid vigour, while benefitting from the reduced recombination load and genome cleansed of deleterious mutations that comes from their inherent stock.
@Archean-Return
It is annoying how difficult it is to find anything on the internet anymore. I once came across a study talking about Scandinavian (maybe was Swedish specifically) people having reproducing with relatives gave them strong genes but i cant find it again to see what degree of relation they were talking about.
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⣸⠋⠀⠀⠀⡄⠀⠀⡔⠀⢀⠀⢸⠀⠀⠀⡘⡰⠁⠘⡀⠀⠀⢠⠀⠀⠀⢸⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠁⠀⣀⠀⠀⡇⠀⡜⠈⠁⠀⢸⡈⢇⠀⠀⢣⠑⠢⢄⣇⠀⠀⠸⠀⠀⠀⢸⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⢰⡟⡀⠀⡇⡜⠀⠀⠀⠀⠘⡇⠈⢆⢰⠁⠀⠀⠀⠘⣆⠀⠀⠀⠀⠀⠸⠀⠀⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠤⢄⠀⠀⠀⠀⠀⠀⠀⠀⡼⠀⣧⠀⢿⢠⣤⣤⣬⣥⠀⠁⠀⠀⠛⢀⡒⠀⠀⠀⠘⡆⡆⠀⠀⠀⡇⠀⠀⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⢵⡀⠀⠀⠀⠀⠀⡰⠀⢠⠃⠱⣼⡀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠈⠛⠳⠶⠶⠆⡸⢀⡀⣀⢰⠀⠀⢸ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⣀⣀⣀⠄⠀⠉⠁⠀⠀⢠⠃⢀⠎⠀⠀⣼⠋⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠴⠢⢄⡔⣕⡍⠣⣱⢸⠀⠀⢷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⡰⠃⢀⠎⠀⠀⡜⡨⢢⡀⠀⠀⠀⠐⣄⠀⠀⣠⠀⠀⠀⠐⢛⠽⠗⠁⠀⠁⠊⠀⡜⠸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀ ⢀⠔⣁⡴⠃⠀⡠⡪⠊⣠⣾⣟⣷⡦⠤⣀⡈⠁⠉⢀⣀⡠⢔⠊⠁⠀⠀⠀⠀⢀⡤⡗⢀⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⢀⣠⠴⢑⡨⠊⡀⠤⠚⢉⣴⣾⣿⡿⣾⣿⡇⠀⠹⣻⠛⠉⠉⢀⠠⠺⠀⠀⡀⢄⣴⣾⣧⣞⠀⡜⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠐⠒⣉⠠⠄⡂⠅⠊⠁⠀⠀⣴⣿⣿⣿⣿⣻⣿⣿⡇⠀⠀⢠⣷⣮⡍⡠⠔⢉⡇⡠⠋⠁⠀⣿⣿⣿⣿⣄⠀⠀⠀⠀
Jun 26, 2024 10:19 PM

Offline
Apr 2021
1528
I wouldn't even know if i marry my second cousin. I can't remember even some of my own cousin's faces (i have waaay too many cousins. Some of them even have grandchildren and I'm just 19), let alone second cousins.

As for wrong or right, if you are close then it's weird i guess. But i doubt most people are that close with their second cousins.

But then again, i live in a country where people do marry their cousins (yeah i find it weird) so maybe my opinion doesn't hold that much value.
Jun 27, 2024 12:16 AM

Offline
Sep 2016
21978
Reply to Archean-Return
Zarutaku said:
Sounds reasonable, but doesn't the family need to have a near flawless genome for that? Otherwise the inbreed might be doomed.
That's why I brought up the mutation load. Initial generations of a inbreeding population will express this mutational load that has been accumulated in the outbreeding population through deleterious recessive mutations, but will be reduced in the surviving offspring, eventually resulting in a population that expresses advantageous recessive phenotypes and increased fertility after enough generations. But because human populations are panmictic (i.e. favouring a random breeding strategy), you rarely see this happen outside of more remote groups.
@Archean-Return I see, so the initial generations of inbreeding will have an increasing fraction of corrupted offspring but also another fraction of improved offspring and the latter will become more prevalent again after enough generations and they will be superior to outbreeding population? Not sure if I understood correctly, but it kind of makes sense.
*kappa*
Jun 27, 2024 1:23 AM

Offline
Dec 2008
698
An older woman has a higher rate of giving birth to a child with birth defects than second cousins do, yet we don't really stigmatise older women for having kids, so the whole genetic/health issue thing is a little overblown I think.
Even for first cousins it isn't really an issue unless the following generations keep marrying their first cousins too.
Jun 27, 2024 4:02 AM

Offline
Mar 2008
53423
Reply to Saku_k
An older woman has a higher rate of giving birth to a child with birth defects than second cousins do, yet we don't really stigmatise older women for having kids, so the whole genetic/health issue thing is a little overblown I think.
Even for first cousins it isn't really an issue unless the following generations keep marrying their first cousins too.
@Saku_k
Older women and older men. Likely more so older women but im not sure. I almost forgot about that.
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⣸⠋⠀⠀⠀⡄⠀⠀⡔⠀⢀⠀⢸⠀⠀⠀⡘⡰⠁⠘⡀⠀⠀⢠⠀⠀⠀⢸⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠁⠀⣀⠀⠀⡇⠀⡜⠈⠁⠀⢸⡈⢇⠀⠀⢣⠑⠢⢄⣇⠀⠀⠸⠀⠀⠀⢸⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⢰⡟⡀⠀⡇⡜⠀⠀⠀⠀⠘⡇⠈⢆⢰⠁⠀⠀⠀⠘⣆⠀⠀⠀⠀⠀⠸⠀⠀⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠤⢄⠀⠀⠀⠀⠀⠀⠀⠀⡼⠀⣧⠀⢿⢠⣤⣤⣬⣥⠀⠁⠀⠀⠛⢀⡒⠀⠀⠀⠘⡆⡆⠀⠀⠀⡇⠀⠀⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⢵⡀⠀⠀⠀⠀⠀⡰⠀⢠⠃⠱⣼⡀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠈⠛⠳⠶⠶⠆⡸⢀⡀⣀⢰⠀⠀⢸ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⣀⣀⣀⠄⠀⠉⠁⠀⠀⢠⠃⢀⠎⠀⠀⣼⠋⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠴⠢⢄⡔⣕⡍⠣⣱⢸⠀⠀⢷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⡰⠃⢀⠎⠀⠀⡜⡨⢢⡀⠀⠀⠀⠐⣄⠀⠀⣠⠀⠀⠀⠐⢛⠽⠗⠁⠀⠁⠊⠀⡜⠸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀ ⢀⠔⣁⡴⠃⠀⡠⡪⠊⣠⣾⣟⣷⡦⠤⣀⡈⠁⠉⢀⣀⡠⢔⠊⠁⠀⠀⠀⠀⢀⡤⡗⢀⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⢀⣠⠴⢑⡨⠊⡀⠤⠚⢉⣴⣾⣿⡿⣾⣿⡇⠀⠹⣻⠛⠉⠉⢀⠠⠺⠀⠀⡀⢄⣴⣾⣧⣞⠀⡜⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ ⠐⠒⣉⠠⠄⡂⠅⠊⠁⠀⠀⣴⣿⣿⣿⣿⣻⣿⣿⡇⠀⠀⢠⣷⣮⡍⡠⠔⢉⡇⡠⠋⠁⠀⣿⣿⣿⣿⣄⠀⠀⠀⠀
Jun 27, 2024 6:57 AM

Offline
Feb 2016
14993
Reply to mshfqtny
I wouldn't even know if i marry my second cousin. I can't remember even some of my own cousin's faces (i have waaay too many cousins. Some of them even have grandchildren and I'm just 19), let alone second cousins.

As for wrong or right, if you are close then it's weird i guess. But i doubt most people are that close with their second cousins.

But then again, i live in a country where people do marry their cousins (yeah i find it weird) so maybe my opinion doesn't hold that much value.
mshfqtny said:
But then again, i live in a country where people do marry their cousins (yeah i find it weird) so maybe my opinion doesn't hold that much value.

Most cousins in this world don't marry even when they're allowed to. Pearl clutchers need to realize Japan isn't some hotbed of incest, and that their own country likely allows it too.
LucifrostJun 27, 2024 7:01 AM
その目だれの目?
Jun 27, 2024 6:59 AM

Offline
Feb 2016
14993
Reply to traed
@Saku_k
Older women and older men. Likely more so older women but im not sure. I almost forgot about that.
@traed
How old is older? Those factoids are potentially important.
その目だれの目?
Jun 27, 2024 7:17 AM

Offline
Sep 2016
21978
Reply to Lucifrost
@traed
How old is older? Those factoids are potentially important.
Lucifrost said:
How old is older?

Around age 40 the egg quality is already halved according to https://www.shecares.com/pregnancy/fertility/fertility-and-age
*kappa*
Jun 27, 2024 10:24 AM

Offline
Oct 2022
1184
Hey, I don’t think it is a problem…

*put sunglasses*

as long as it stays in the family
Jun 27, 2024 10:39 AM

Offline
Jul 2013
12161
Is it morally wrong? According to whom? I would like to know.
Here is my Pixiv account of my hentai drawings.....

https://www.pixiv.net/en/users/104739065

Here is my blog....

https://theendofindustrialcivilization.blogspot.com/?m=1
Jun 27, 2024 11:34 AM
🍅 Tomato 🍅

Offline
Feb 2020
123091
A long time ago, the Toba supervolcano eruption caused a genetic bottleneck in human evolution, so we are more or less related to each other.

Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb

Mount Toba or: How I Learned to Stop Worrying and Love My Cousin
Jun 27, 2024 2:50 PM

Offline
Sep 2019
3799
Damn I didn't know there was that many Roll Tide fans on here lmao


Jokes aside I think it's weird but if that's your thing than you do you fam.
Jun 28, 2024 12:32 AM

Offline
Mar 2024
831
Wrong to marry/have kids

Having children is wrong in general. This world is full of suffering and pain and existence has no meaning. The best way out of this is antinatalism; there is no need to throw new people into this meatgrinder.

But marrying sister is ok, i dont see anything wrong because... it doesnt bother anyone.
Love has no boundaries.
Jun 28, 2024 1:03 AM

Offline
Sep 2016
21978
Reply to Serafos
A long time ago, the Toba supervolcano eruption caused a genetic bottleneck in human evolution, so we are more or less related to each other.

Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb

Mount Toba or: How I Learned to Stop Worrying and Love My Cousin
Serafos said:
How I Learned to Stop Worrying and Love My Cousin

This is the first time I saw you saying something slightly controversial, keep it up.
*kappa*
Jun 28, 2024 4:09 AM

Offline
Jan 2021
2431
Suprised this thread still up, MAL mods either got lazy or based.
Jun 28, 2024 6:03 AM

Offline
Jan 2021
2431
@LoveYourSmile Because it goes against MAL rules. It's a topic about incest, one of the controversial/sensitive topics. Not to mention that there was already discussion of incest & inbreeding in general.
This topic has been locked and is no longer available for discussion.
Pages (3) [1] 2 3 »

More topics from this board

» movies that define Spooky/Halloween season for you

ame - Yesterday

7 by JaniSIr »»
6 minutes ago

» The Rise Of AI? ( 1 2 )

DigiCat - Oct 2

60 by deg »»
9 minutes ago

» Do the well-known stereotypes associated with people from your country actually apply to you? ( 1 2 )

fleurbleue - Oct 8

66 by auroraloose »»
14 minutes ago

» Would you watch Assad's Twitch Streams?

vasipi4946 - Yesterday

7 by Commit_Crime »»
1 hour ago

» Silly ways of making money

traed - Yesterday

14 by Zarutaku »»
3 hours ago
It’s time to ditch the text file.
Keep track of your anime easily by creating your own list.
Sign Up Login