this post was submitted on 31 Aug 2023
159 points (97.0% liked)

science

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just science related topics. please contribute

note: clickbait sources/headlines aren't liked generally. I've posted crap sources and later deleted or edit to improve after complaints. whoops, sry

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[–] [email protected] 28 points 1 year ago (2 children)

I mean, the biblical version is just two.... and their three sons.

[–] [email protected] 9 points 1 year ago

Until they wandered around and miraculously found more people that were never explained how they survived.

[–] [email protected] 8 points 1 year ago

Close enough!

[–] [email protected] 25 points 1 year ago (2 children)

I feel like we knew this years ago. Is this another way of confirming it?

[–] [email protected] 46 points 1 year ago* (last edited 1 year ago) (1 children)

This is a third bottleneck, earlier than the 2 we already knew about.

Specifically, this affects the entire human population.

The other 2 bottlenecks were specifically the humans which moved out of Africa - with one being as humans crossed into the Middle East and a second as humans crossed the Bering Strait.

This third one was earlier, and covers all humans, even the ones which never left Africa. These are separate from the more localized "founder events" that we see all over the world.

[–] [email protected] 7 points 1 year ago

Ooh thanks, I did not know this!

[–] [email protected] 19 points 1 year ago (1 children)

No this is different, actually. The other event is the hypothesized genetic bottleneck triggered by the Toba supervolcano eruption only 74,000 years ago as opposed to 900,000 years ago for this newly proposed event.

https://en.m.wikipedia.org/wiki/Toba_catastrophe_theory

[–] [email protected] 4 points 1 year ago

Fascinating!

[–] [email protected] 13 points 1 year ago (3 children)

We're all a combination of 1280 individuals !?

[–] [email protected] 11 points 1 year ago

Plus mutations

[–] [email protected] 7 points 1 year ago

Hey cousin.

[–] [email protected] 10 points 1 year ago (1 children)

I feel so lucky that I find the topic of our evolution and our cousins and so on as exciting as I do. The reason I feel lucky is because it's a topic that is constantly turning out new discoveries and that makes life thrilling. Also, it feels like the rate of discovery has really exploded over the past decade or two. Remember the article about the "hobbits"? I just checked and that was 2004. Last December, Lee Berger revealed Homonaledi. Holy crap is this topic overflowing with cool news.

[–] [email protected] 8 points 1 year ago

2^10 + 2^8 = 1280

Some mathematical model

[–] [email protected] 3 points 1 year ago (1 children)

No one else is going to acknowledge that my dude is kind of dreamy?

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)
[–] [email protected] 1 points 1 year ago

Look like average in street situation person