Register | Sign In


Understanding through Discussion


EvC Forum active members: 60 (9209 total)
1 online now:
Newest Member: Skylink
Post Volume: Total: 919,448 Year: 6,705/9,624 Month: 45/238 Week: 45/22 Day: 0/12 Hour: 0/0


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Study sheds more light on the “hobbit” people
RAZD
Member (Idle past 1657 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 7 of 26 (778441)
02-20-2016 7:45 AM
Reply to: Message 6 by Coyote
02-20-2016 4:43 AM


It is starting to look like there was more leakage between the groups than had been realized, with more influence from earlier groups persisting to and merging with the out-of-Africa migration. The amount of that influence is still being argued about.
So the time-line is all effed up? (sorry could help it)
We saw similar mixing of traits in the Homo naledi (New Species of Homo Discovered: Homo nalediHomo[/i] Discovered: Homo nalediHomo[/i] Discovered: Homo naledi and Interweaving Evolution & Hybrid Vigor) which is not shown on your last graphic.
Note: if you use [blockcolor=white][img](image location url)[/img][/blockcolor] you get a more viewer friendly image:
And we also saw in historical times that European explorers came into contact with native humans in north and south America after >10,000 years of isolation or so and lost little time in interbreeding ...
Interesting.
Edited by RAZD, : .

we are limited in our ability to understand
by our ability to understand
RebelAmerican☆Zen☯Deist
... to learn ... to think ... to live ... to laugh ...
to share.


Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)

This message is a reply to:
 Message 6 by Coyote, posted 02-20-2016 4:43 AM Coyote has seen this message but not replied

  
RAZD
Member (Idle past 1657 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 10 of 26 (778463)
02-20-2016 10:58 AM
Reply to: Message 9 by Blue Jay
02-20-2016 10:53 AM


... All detected mixing has so far been attributable to very small numbers of events, ...
It would be interesting if we could determine whether this was due to a small number of occasional events,
Or it was due to reduced interfertility\compatibility, so only a few offspring survived.
Enjoy

we are limited in our ability to understand
by our ability to understand
RebelAmerican☆Zen☯Deist
... to learn ... to think ... to live ... to laugh ...
to share.


Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)

This message is a reply to:
 Message 9 by Blue Jay, posted 02-20-2016 10:53 AM Blue Jay has not replied

Replies to this message:
 Message 11 by Jon, posted 02-20-2016 12:36 PM RAZD has replied

  
RAZD
Member (Idle past 1657 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 12 of 26 (778499)
02-20-2016 4:51 PM
Reply to: Message 11 by Jon
02-20-2016 12:36 PM


Or the superior sapiens genetic material swamping out the other stuff as older generations gave way to newer ones.
How would this work? Natural selection deselecting offspring? Usually there is some "hybrid vigor" when there is interbreeding, a factor that is used in domestic animal breeding programs.
A reduction of interfertility is something that would be expected on the path to genetic isolation. Mules are an example where the reduction in interfertility still produces offspring, but they have severely limited ability to breed -- even though they do show "hybrid vigor" ...
Enjoy

we are limited in our ability to understand
by our ability to understand
RebelAmerican☆Zen☯Deist
... to learn ... to think ... to live ... to laugh ...
to share.


Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)

This message is a reply to:
 Message 11 by Jon, posted 02-20-2016 12:36 PM Jon has replied

Replies to this message:
 Message 13 by Jon, posted 02-21-2016 11:50 AM RAZD has seen this message but not replied

  
RAZD
Member (Idle past 1657 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 18 of 26 (778701)
02-23-2016 2:03 PM
Reply to: Message 15 by Coyote
02-22-2016 11:45 AM


braided net
The big news from recent finds is the date and nature of the out-of-Africa movement for modern humans is being refined, and the multi-regional hypothesis is being reexamined.
In other words both are right and both are incorrect ... or not completely correct.
So, what we have with interbreeding is a braided or interwoven net, that all came out of Africa and then shared traits developed after leaving Africa, rather than spontaneously arising in different independent populations (which has always been where my skepticism of the multi-regional hypothesis).
Enjoy

we are limited in our ability to understand
by our ability to understand
RebelAmerican☆Zen☯Deist
... to learn ... to think ... to live ... to laugh ...
to share.


Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)

This message is a reply to:
 Message 15 by Coyote, posted 02-22-2016 11:45 AM Coyote has replied

Replies to this message:
 Message 19 by Coyote, posted 02-23-2016 3:21 PM RAZD has seen this message but not replied
 Message 22 by Jon, posted 02-23-2016 6:16 PM RAZD has replied

  
RAZD
Member (Idle past 1657 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 23 of 26 (778769)
02-24-2016 10:22 AM
Reply to: Message 22 by Jon
02-23-2016 6:16 PM


Re: braided net
Perhaps you could elucidate what you think the multi-regional hypothesis says. I will admit that I never gave it much credence because of (my) perceived obstacles for developing similar characteristics in different places or some kind of emergence from a chrysalis in different places.
A pattern of interwoven or braided genealogies however does provide paths for sharing different traits across many areas creating a montage of mosaic patterns.
Enjoy

we are limited in our ability to understand
by our ability to understand
RebelAmerican☆Zen☯Deist
... to learn ... to think ... to live ... to laugh ...
to share.


Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)

This message is a reply to:
 Message 22 by Jon, posted 02-23-2016 6:16 PM Jon has replied

Replies to this message:
 Message 24 by Jon, posted 02-26-2016 6:41 PM RAZD has seen this message but not replied

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024