HistoryNet.com RSS
ArmchairGeneral.com RSS

HistoryNet.com Articles
America's Civil War
American History
Aviation History
Civil War Times
MHQ
Military History
Vietnam
Wild West
World War II

ACG Online
ACG Magazine
Stuff We Like
War College
History News
Tactics 101
Carlo D'Este
Books

ACG Gaming
Boardgames
PC Game Reviews

ACG Network
Contact Us
Our Newsletter
Meet Our Staff
Advertise With Us

Sites We Support
HistoryNet.com
StreamHistory.com
Once A Marine
The Art of Battle
Game Squad
Mil. History Podcast
Russian Army - WW2
Achtung Panzer!
Mil History Online

Go Back   Armchair General and HistoryNet >> The Best Forums in History > Current Events > Africa

Notices and Announcements

Africa Issues of modern Africa.

View Poll Results: Was South Africa right to end Apartheid?
Yes 25 89.29%
No 3 10.71%
Voters: 28. You may not vote on this poll

Reply
 
Thread Tools Display Modes
  #151  
Old 18 Nov 13, 22:16
GCoyote's Avatar
GCoyote GCoyote is offline
ACG Forums - canis administrationem
United_States
Distinguished Service Award ACG Ten Year Service Award 5 Year Service Ribbon Greatest Westerns Campaign 
Greatest Spy Movies Campaign Greatest Blunders Campaign Best Pin-Up Of World War II Most Significant/Influential Tank Campaign 
Most Significant/Influential Multi-Role Aircraft C 
 
Real Name: Gary C
Join Date: Aug 2004
Location: Laurel, MD, USA
Posts: 19,102
GCoyote has achieved enlightenment [1200+] GCoyote has achieved enlightenment [1200+] GCoyote has achieved enlightenment [1200+] GCoyote has achieved enlightenment [1200+] GCoyote has achieved enlightenment [1200+]
GCoyote has achieved enlightenment [1200+] GCoyote has achieved enlightenment [1200+] GCoyote has achieved enlightenment [1200+] GCoyote has achieved enlightenment [1200+] GCoyote has achieved enlightenment [1200+]
Expanding the gene pool reduces the odds of disorders caused by recessive genes (e.g. hemophilia). Beyond that it depends on the species. Domestic animals are more highly inbred than wild populations.

Humans have less genetic variability than most other large animals. We are literally more alike than we should be given the size of our population. The most common theory I've seen put forward for this was a genetic bottleneck. Around 70k years ago a sudden change in the climate reduced the human population to perhaps as few as 10,000 individuals.

Late Pleistocene human population bottlenecks, volcanic winter, and differentiation of modern humans.

Or, Look up "Toba Super Volcano".
__________________
Any metaphor will tear if stretched over too much reality.

Questions about our site? See the FAQ.
Reply With Quote
Reply

Please bookmark this thread if you enjoyed it!


Thread Tools
Display Modes



Forum Jump

All times are GMT -4. The time now is 20:33.
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.