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

science

17800 readers
337 users here now

A community to post scientific articles, news, and civil discussion.

rule #1: be kind

founded 2 years ago
MODERATORS
all 20 comments
sorted by: hot top controversial new old
[–] [email protected] 28 points 2 years ago (2 children)

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

[–] [email protected] 9 points 2 years ago

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

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

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

[–] [email protected] 46 points 2 years ago* (last edited 2 years 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 2 years ago

Ooh thanks, I did not know this!

[–] [email protected] 19 points 2 years 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 2 years ago

Fascinating!

[–] [email protected] 13 points 2 years ago (3 children)

We're all a combination of 1280 individuals !?

[–] [email protected] 11 points 2 years ago

Plus mutations

[–] [email protected] 7 points 2 years ago

Hey cousin.

[–] [email protected] 8 points 2 years ago

2^10 + 2^8 = 1280

Some mathematical model

[–] [email protected] 3 points 2 years ago (1 children)

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

[–] [email protected] 1 points 2 years ago* (last edited 2 years ago)