All humans are 50th cousins?

ozso · Monday at 10:08 PM

RileyG said:
It's quite investing to think about how billions and billions are related! I dunno.

Just to let you know, I think of you more as a 48th cousin

BPPLEE · Monday at 10:19 PM

AV1611VET said:
Do you mean where did I hear that from?

From here.

As I understand it, they say mtdnaEve, which stands for "mitochondrial DNA Eve," is the oldest known human female.

Her counterpart is y-Adam, who is our oldest known male.

They didn't really know each other.

From AI Overview:

According to recent genetic studies, mitochondrial Eve and Y-chromosomal Adam lived around the same time, with their estimated dates overlapping. Specifically, Y-chromosomal Adam is estimated to have lived between 120,000 and 156,000 years ago, while mitochondrial Eve is estimated to have lived between 99,000 and 148,000 years ago, according to a study published in Nature. This suggests that the two most recent common ancestors for all humans (one for the Y chromosome and one for mitochondrial DNA) lived during a similar period, rather than being separated by a large gap in time as previously thought.

Prior to these studies, estimates for Y-chromosomal Adam's age were significantly lower than those for mitochondrial Eve, leading to the idea that they lived far apart in time. However, more recent research, using improved methods for analyzing Y chromosome and mitochondrial DNA variations, has narrowed the gap in their estimated ages.

I'm just confused after reading that

AV1611VET · Monday at 10:28 PM

BPPLEE said:
I'm just confused after reading that

Imagine a junk yard for cars.

It has a 1965 Ford in it, and a 1980 Oldsmobile.

The '65 Ford is the oldest Ford in it; and the '80 Oldsmobile is the oldest Oldsmobile in it.

That's what they're saying.

Adam is the Ford and Eve is the Oldsmobile.

Now ... if they should later find a 1960 Ford buried somewhere in the corner, that will be the new "y-Adam".

RileyG · Monday at 11:07 PM

ozso said:
Just to let you know, I think of you more as a 48th cousin

Why, thank you

that’s very kind

RileyG · Monday at 11:09 PM

AV1611VET said:
Do you mean where did I hear that from?

From here.

As I understand it, they say mtdnaEve, which stands for "mitochondrial DNA Eve," is the oldest known human female.

Her counterpart is y-Adam, who is our oldest known male.

They didn't really know each other.

From AI Overview:

According to recent genetic studies, mitochondrial Eve and Y-chromosomal Adam lived around the same time, with their estimated dates overlapping. Specifically, Y-chromosomal Adam is estimated to have lived between 120,000 and 156,000 years ago, while mitochondrial Eve is estimated to have lived between 99,000 and 148,000 years ago, according to a study published in Nature. This suggests that the two most recent common ancestors for all humans (one for the Y chromosome and one for mitochondrial DNA) lived during a similar period, rather than being separated by a large gap in time as previously thought.

Prior to these studies, estimates for Y-chromosomal Adam's age were significantly lower than those for mitochondrial Eve, leading to the idea that they lived far apart in time. However, more recent research, using improved methods for analyzing Y chromosome and mitochondrial DNA variations, has narrowed the gap in their estimated ages.

I assume many of our ancestors remains are long gone due to time and decomposition.

Fossils are rather rare.

From what I understand.

Someone can correct me if I’m wrong.

ozso · Monday at 11:21 PM

RileyG said:
Why, thank you that’s very kind

Hope to see you at the family Christmas gathering. RSVP soon, there's only 5,965,892,463 invitations left.

RileyG · Tuesday at 12:38 AM

ozso said:
Hope to see you at the family Christmas gathering. RSVP soon, there's only 5,965,892,463 invitations left.

Heh heh heh

Tuur · Tuesday at 5:07 AM

Hans Blaster said:
Many years ago I saw this same information put it in terms of one common "brag about" ancestors:

Robert Heinlein, through the character Lazarus Long, had a comment about someone who's only sense of worth came from a distant ancestor. But Heinlein got it wrong. When you start digging into ancestry, you come up with so many scoundrels and outlaws that when you find one who isn't, you want the whole world to know it.

Ophiolite · Tuesday at 5:24 AM

RileyG said:
I assume many of our ancestors remains are long gone due to time and decomposition.

Fossils are rather rare.

From what I understand.

Someone can correct me if I’m wrong.

You are correct. Fossils are exceedingly rare, except in exceptional circumstances when entire rock masses are built of their remains. Such a mass is being constructed, for example, on portions of the Bahamas Bank at present, or any other shallows far from terrestrial sediments and suitable for "corals and clams". But you won't get many seabird or fish fossils showing up there.

The study of the preservation of fossils is called taphonomy and I was about to embark on an amateurish description of the field, when I realised there was probably a Wikipedia article on the subject that would serve much better. There is, just here.

AV1611VET · Tuesday at 6:19 AM

RileyG said:
I assume many of our ancestors remains are long gone due to time and decomposition.

Fossils are rather rare.

From what I understand.

Someone can correct me if I’m wrong.

I think fossils can be found almost anywhere, but what is rare are complete fossils.

An arm here, a leg there, a tooth, a skull -- old hat.

But a complete fossil, now that's a find!

Bradskii · Tuesday at 7:35 AM

Tuur said:
Robert Heinlein, through the character Lazarus Long, had a comment about someone who's only sense of worth came from a distant ancestor. But Heinlein got it wrong. When you start digging into ancestry, you come up with so many scoundrels and outlaws that when you find one who isn't, you want the whole world to know it.

I always thought how great it would be to go back and visit each of my ancestors. But you are guaranteed to find some really bad dudes somewhere on that direct ancestral line.

Ophiolite · Tuesday at 8:58 AM

Bradskii said:
I always thought how great it would be to go back and visit each of my ancestors. But you are guaranteed to find some really bad dudes somewhere on that direct ancestral line.

And the interesting thing is that some of your really bad dudes are probably my really bad dudes too.

essentialsaltes · Tuesday at 9:49 AM

AV1611VET said:
As I understand it, they say mtdnaEve, which stands for "mitochondrial DNA Eve," is the oldest known human female.

Her counterpart is y-Adam, who is our oldest known male.

Not the oldest person of each gender, but the most recent common ancestor of everyone alive today.

NxNW · Tuesday at 9:57 AM

RileyG said:
Anyone ever heard about this? All humans are extended from the same mitochondrial Eve who lived about 200,000 years ago, and therefore, are related.

Life came out of Africa.

Thoughts?

I think you're the last person to hear this news!

NxNW · Tuesday at 10:01 AM

Bradskii said:
I always thought how great it would be to go back and visit each of my ancestors. But you are guaranteed to find some really bad dudes somewhere on that direct ancestral line.

And if you don't, then you have to step up and check the box.

AV1611VET · Tuesday at 10:23 AM

essentialsaltes said:
Not the oldest person of each gender, but the most recent common ancestor of everyone alive today.

Thanks for the correction.

AV1611VET · Tuesday at 10:28 AM

NxNW said:
I think you're the last person to hear this news!

Hans Blaster · Tuesday at 11:00 AM

Tuur said:
Robert Heinlein, through the character Lazarus Long, had a comment about someone who's only sense of worth came from a distant ancestor.

I'm curious what Long/Heinlein said. I'm getting the feeling I'm likely to agree with it.

Tuur said:
But Heinlein got it wrong. When you start digging into ancestry, you come up with so many scoundrels and outlaws that when you find one who isn't, you want the whole world to know it.

I wouldn't know. Most are so thinly documented as to not give information about their characters.

Gregory Thompson · Tuesday at 11:02 AM

RileyG said:
Anyone ever heard about this? All humans are extended from the same mitochondrial Eve who lived about 200,000 years ago, and therefore, are related.

Life came out of Africa.

Thoughts?

I heard there were a number of starting locations. Ideologies centring on one location seem to have an agenda.

My thoughts on humans being 50th cousins is the scientist is probably trying to justify incest.

essentialsaltes · Tuesday at 11:22 AM

Gregory Thompson said:
I heard there were a number of starting locations.

You may have heard it, but it's not a common view today.

Modern scientific views find little merit in any polygenic model due to an increased understanding of speciation in a human context, with the monogenic "Out of Africa" hypothesis and its variants being the most widely accepted models for human origins.[1]

Gregory Thompson said:
Ideologies centring on one location seem to have an agenda.

Ideologies centering on multiple locations seem to have an agenda (and are not well-supported by the evidence).

Polygenism has historically been heavily used in service of white supremacist ideas and practices, denying a common origin between European and non-European peoples.

Gregory Thompson said:
My thoughts on humans being 50th cousins is the scientist is probably trying to justify incest.

What a ludicrous conclusion.

All humans are 50th cousins?

✦

Well-Known Member

SCIENCE CAN TAKE A HIKE

Veteran

Veteran

✦

Veteran

Well-Known Member

Recalcitrant Procrastinating Ape

SCIENCE CAN TAKE A HIKE

Old age should burn and rave at close of day;

Recalcitrant Procrastinating Ape

Fact-Based Lifeform

Well-Known Member

Well-Known Member

SCIENCE CAN TAKE A HIKE

SCIENCE CAN TAKE A HIKE

Raised by bees

Change is inevitable, feel free to spare some.

Fact-Based Lifeform

Similar threads