Thread 16837213

So the benefits of "hybrid vigor" espoused by leftist academia were actually not true.

This is awkward

>>16837213 (OP)
do leftist academics really believe that a black guy is a stronger specimen if he has white blood in him?

>>16837213 (OP)
By the way "hybrid" vigor is not even correct terminology. In plant cultivation most "hybrids" are not actually hybrids. They're just different lines within the same species. Because of the historic misuse and abuse of terminology in agriculture, because farmers are retarded hicks, people have historically transmitted these misunderstandings into actual science.

There was never such a thing as "hybrid vigor". Most hybrids are sterile or die in development.

>slop thread
It's time to update the 2003 rules

I grow true hybrids, plants made from interspecies pairings, as well as the original species they were made from and the hybrids I grow are weak and unproductive compared to the original species.
You do find occasional vigorous individuals if you take a hybrid and cross it back to one of the original parent species. The 2nd & 3rd back cross seem like they're the best for that.

Hybrid vigor is true for like some cross species off spring of frogs in Europe(?) because they offspring are bigger or something. Don't remember the specifics as this is from a lecture I went to 8 years ago.

>>16837248
They also like to use ligers, but they're generally sterile so I wouldn't consider that particularly "vigorous".

AI is funnier when it's calling itself mecha hitler or ranting about south african politics, not this slop

>>16837213 (OP)
Endogamy for the win

someone ask grok what the real level of risk is for marrying yuor sister I feel like it's the opposite extreme.
I've heard the risks of inbreeding are generally overstated.

>>16837213 (OP)
it was always painfully obvious for anyone with a brain that this is a kike psy-op
if it was true no species would ever differentiate

Mixed race populations sort of go through their own evolution to purge out the worse gene mixes, but keep the good ones. The secret is to keep mixing for a few millennia until all the kinks are worked out

>>16837534
That sounds kinda retarded.
What tends to happen in reality is some on the fringes intermix, the successful survive and the few good genes introgress into the larger population over time.
of course sometimes you get large effects where the entire male population gets wiped out or something but it's risky to just throw everything into the blender maybe only 1% or fewer will survive if you have some sort o complex trait necessary for survival like the immune system.

>>16837219
Purebred dogs have genetically distinct advantages. They also have shorter lifespans. You see, hybrid vigor is purely about living longer at the cost of losing specialization.

>>16837213 (OP)
>source: grok
lmao you're an embarrassment

>>16838365
>They also have shorter lifespans.
Not true.
It depends entirely on what you want with your animal, plenty of purebred dogs are robust and live long lives.
If the gene pool for your pure breed is large enough you can basically do anything you want with it as long as you have proper selection pressure.
You only get the mess of many modern pedigrees because they pushed hard for show type.
Look at what happened to German shepherds

>>16838378
>It depends
>If
>If
Exceptions to the norm to not refute the norm

>>16838380
If you breed like a retard you get retarded results.

>>16838365
>hybrid vigor
hybrid vigor is about plants

>all throughout history one common denominator of power is genetic preservation which also happens to be almost universally prohibited for the plebs

Hmmmmmmmm...must be nothing.

>>16838403
It's even worse than the past since generally they just forbade you from marrying your cousins or something, we're starting to get to a point where they're making it taboo to get with someone who even looks like your race.

And outbreeding depression is far far worse than inbreeding depression

>>16838382
>If
You're doing it again

>>16838417
If english were your first language.

>>16838419
Of the two of us, only one sees the irony in your post.

>>16838421
This will just descend to bickering if we continue this way. How long do wolves live?

>>16838446
>How long do wolves live
Roughly the same as a dog and less than some dog breeds.

Smaller dogs in general tend to live longer.

>>16838594
Yeah, terriers can live a pretty long time.

>>16837220
>because farmers are retarded, scientists are retarded

Enjoy dieing when we siege the cities you cosmopolitan faggot.

>>16838766
>Enjoy dieing when we siege the cities
Everyone lives in cities. Farmers dont exist anymore as a class btw, all farms are industrial and use an extensive array of machinery and chemicals. The land belongs to wealthy people that live in cities and just rents it out.
Only people living on shacks near farms are poor illegal laborers.
Farms belong to cities, as well as the entire agro-industrial complex. The gas industry required to produce that nitrogen fertilizer? The owners live in cities too.

>>16837213 (OP)
So many such cases, anything tainted by the left is trash.

>>16838818
Can we define the left and right on a beauty seeking basis?

>>16838810
He asked Grok to quote studies in the second post.

>>16838365
Not really. A cross between two purebreds with health issues will just combine those health issues, not create a more vigorous offspring. It’s only when you get to multiple generations of admixture that they become healthier

>>16839479
>Exceptions to the norm refute the norm
Retard alert

>>16839489
That’s not an exception to the norm dipshit. The norm is a cross of two unhealthy dogs just makes a more unhealthy dog

>>16839479
No, that seems wrong, aren't most issues usually caused by a deleterious recessive that reached fixation in a population, but it's unlikely the same harmful recessive reached fixation in both populations, so the F! hybrid offspring with an outcross should allow both deleterious recessives to be overpowered by a functional.

>>16837534
For what purpose? Is it worth having 100s of years of rape and violence in your mulitshithole to bring about this mutt future?

>>16839536
Correct. And the deleterious alleles can again be expressed in the following generations, so you might see hybrid vigor only in the first one.

>>16838401
It can apply to any life form, but only if the populations were actually inbred

>>16838369
Triggered plebbitor tourist detected.

how can you argue in favour of mixed-race people when every place on earth in which they are the majority is a terrible place to be?

>>16837213 (OP)
>>16837220
>>16837246
>>16837248
>>16837385
>>16837534
>>16838361
>>16838365
>>16838401
>>16839479

Hybrid vigor happens when the parents' populations have a lot of negative recessive traits. Outbreeding breaks up the recessive alleles and make the kids healthier. This is why inbreeding is bad.

Outbreeding depression happens when the parents' populations are adapted to a very specific selective environment. For example, polar bears can breed with grizzly bears, but the offspring never survive because they cannot neither hide in the snow nor the woods.

>>16841313
>Outbreeding depression happens when the parents' populations are adapted to a very specific selective environment.
not entirely true, it's much more insidious than that, you build up incompatibilities and lose compatible gene complexes, you can reach a point of cellular incompatibility where your fertility rate is on the floor

>>16837213 (OP)
Well yeah hybrid vigour is when it goes right. You can get a mule sometimes.

>>16841121
Todays purebloods are yesterdays mixed race.

>>16841433
>Todays purebloods are yesterdays mixed race.
what are you talking about? today's "purebloods" have only ever mixed with people who look almost exactly like them

>>16841117
You retarded American Christcucks absolutely ruin /sci/ with your worthless sperging

>>16842527
And what were they before they were purebloods, retard?

>>16837219
Yes, yes they do...

>>16841433
>Todays purebloods are yesterdays mixed race.
There's a hell of a lot of dying between those two points in time, it's like saying today's high performance super strong steel was once iron ore, It's technically correct but ignores the entire process of selection and refinement and forging that turned it into something actually useful with a place in the world.

>>16837213 (OP)
Nobody who answered in this thread above this post knows anything about genetics.

"Hybrid vigor" is not a thing in human populations.

Outbreeding with genetically distant people comes with a degree of health risks. Inbreeding with genetically similar people also comes with a degree of health risks. The optimal survival strategy for a human lineage is it's individual reproducing with as many different viable partners as possible. The optimal survival strategy for a population is including as many diverse individuals as possible, with a caveat that "everyone is admixed" is not diverse.

AI is retarded.

>>16842628
>the entire process of selection
Seeing the fundamental of human survival in a civilized environment, that one does not work the way you think it does. And that has been conclusively proven by multiple human population genetic studies.

>>16842666
According to actual human records the optimal genetic distance is close to around the 4th cousin.
supporting Fox's concept of mediogamy.

Perpetual outbreeding is retarded you can't evolve compatible taits.

What happens if you did something like in and out breeding, breed siblings one generation then outbreed the best offspring the next flipping back and forth between each generation?
Any mice studies that did this I could read about?

>>16842670
>According to
I don't see a doi.

>>16842676
Helgason

>>16842677
Helgason(2008) An Association Between the Kinship and Fertility of Human Couples
https://hbdchick.wordpress.com/wp-content/uploads/2012/04/2008-iceland-an-association-between-the-kinship-and-fertility-of-human-couples.pdf