Ancient 'Adam' and 'Eve' probably never met
Published: 2013 August 02 18:52:59 (5162 Views)
Almost every man alive can trace his origins to one man who lived about 135,000 years ago, new research suggests. And that ancient man likely shared the planet with the mother of all women.
The findings, detailed Thursday, Aug. 1, in the journal Science, come from the most complete analysis of the male sex chromosome, or the Y chromosome, to date.
The results overturn earlier research, which suggested that men's most recent common ancestor lived just 50,000 to 60,000 years ago.
Despite their overlap in time, ancient "Adam" and ancient "Eve" probably didn't even live near each other, let alone mate.
"Those two people didn't know each other," said Melissa Wilson Sayres, a geneticist at the University of California, Berkeley, who was not involved in the study.
Meanwhile, new study shows that the selfish traits are not favoured by evolution.
This challenges a previous theory which suggested it was preferable to put yourself first.
Instead, it pays to be co-operative, shown in a model of "the prisoner's dilemma", a scenario of game theory - the study of strategic decision-making.
Published in Nature Communications, the team says their work shows that exhibiting only selfish traits would have made us become extinct.
Game theory involves devising "games" to simulate situations of conflict or co-operation. It allows researchers to unravel complex decision-making strategies and to establish why certain types of behaviour among individuals emerge.
- BBC,Live science
The findings, detailed Thursday, Aug. 1, in the journal Science, come from the most complete analysis of the male sex chromosome, or the Y chromosome, to date.
The results overturn earlier research, which suggested that men's most recent common ancestor lived just 50,000 to 60,000 years ago.
Despite their overlap in time, ancient "Adam" and ancient "Eve" probably didn't even live near each other, let alone mate.
"Those two people didn't know each other," said Melissa Wilson Sayres, a geneticist at the University of California, Berkeley, who was not involved in the study.
Meanwhile, new study shows that the selfish traits are not favoured by evolution.
This challenges a previous theory which suggested it was preferable to put yourself first.
Instead, it pays to be co-operative, shown in a model of "the prisoner's dilemma", a scenario of game theory - the study of strategic decision-making.
Published in Nature Communications, the team says their work shows that exhibiting only selfish traits would have made us become extinct.
Game theory involves devising "games" to simulate situations of conflict or co-operation. It allows researchers to unravel complex decision-making strategies and to establish why certain types of behaviour among individuals emerge.
- BBC,Live science
0
You May Like These Videos
WATCH: Victims Narrate Ordeal After Being Clobbered By Riot Cops
FLASHBACK: Morgan Tsvangirai Won't Resign Despite Illness 
Police Violently Beat Harare Protesters 
Zimbabwean Man Who Was Shot By Tswana Employer Appeals For HelpComments
There are no comments.
Get Zim Metro Updates Alerts
Big Reads
Schoolgirl drops out after continuous 'sexual abuse' by teacher
by Staff Reporter | 2019 August 13 07:42:33
Mugabe Knows Nothing About The Zimbabwe Constitution: MP
by Staff Reporter | 2016 October 01 08:12:02
Zim's Protesting Graduates Risk Losing Degrees For Expressing Anger Against Mugabe
by Staff Reporter | 2016 October 01 07:57:08
Troubled Harare Giants Dynamos Falls Into Another Deep Crisis
by Own Correspondent | 2016 October 01 07:49:17
Grace Mugabe Grovels At Mnangagwa, Says I Did Not Ask Ubaba To Fire You
by Staff Reporter | 2016 October 01 07:31:48
Mugabe Attacks Mawarire, Claims The Exiled Pastor Failed To Divide Zimbabwe
by Staff Reporter | 2016 October 01 07:19:13
Shock As Local Bank Denies 'Rich' Mugabe's Son Heifty Credit
by Own Correspondent | 2016 September 30 19:14:54Trouble For Police Officers Who Have Been Mercilessly Bludgeoning Protesters
by Staff Reporter | 2016 October 01 07:20:19
Mugabe "Home Coming" And "Thank You" Rally On Cards
by Own Correspondent | 2016 September 23 06:48:24
Prof Moyo Was Dumped By Western Embassies, Claims Mutsvangwa
by Staff Reporter | 2016 September 22 10:08:07Broke RBZ Tracks Down Zimbabweans Living Outside The Country Over Taxi
by Staff Reporter | 2016 September 22 09:16:20
You Are Too Old To Lead, Aging Zim President Mugabe Told
by Own Correspondent | 2016 September 22 07:19:25
Anti-Corruption Commission Loses Property In Failed Probe
by Own Correspondent | 2016 September 20 03:18:19
.jpg)
SHOCKING:14 Year Old HIV-Positive Boy Rapes 7 Pupils
by Own Correspondent | 2016 September 20 00:04:55
