Thursday December 13, 2018
Home World Original Amer...

Original Americans came from Siberia 23,000 years ago, study reveals

0
//
picture from- siberiamissionary.org
Republish
Reprint

New York: The first people to reach the Americas came from Siberia, now in Russia, in a single group around 23,000 years ago, at the height of the last Ice Age, says a new study.

picture from- www.offroadexpedition.com
picture from- www.offroadexpedition.com

After reaching Alaska, they apparently hung out in the north – perhaps for thousands of years – before spreading throughout North and South America, said the study based on genomic analysis.

The findings dispel the popular idea that Polynesians or Europeans contributed to the genetic heritage of Native Americans.

The study revealed that the the first people to reach the Americas used a land bridge between Siberia and Alaska called Beringia.

“There is some uncertainty in the dates of the migration and the divergence between the northern and southern Amerindian populations. But as we get more ancient genomes sequenced, we will be able to put more precise dates on the times of migration,” said one of the study authors Yun Song, associate professor at University of California, Berkeley.

The analysis, using the most comprehensive genetic data set from Native Americans to date, was conducted using three different statistical models.

The data consisted of the sequenced genomes of 31 living Native Americans, Siberians and people from around the Pacific Ocean, and the genomes of 23 ancient individuals from North and South America, spanning a time between 200 and 6,000 years ago.

The international team concluded that the northern and southern Native American populations diverged between 11,500 and 14,500 years ago.

The southern branch peopled Central and South America as well as part of northern North America. The findings will be presented in the forthcoming issue of the journal Science.

“The diversification of modern Native Americans appears to have started around 13,000 years ago when the first unique Native American culture appears in the archaeological record: the Clovis culture,” said Rasmus Nielsen, a professor at the California university.

“We can date this split so precisely in part because we previously have analysed the 12,600-year-old remains of a boy associated with the Clovis culture,” Nielsen added.

(IANS)

Click here for reuse options!
Copyright 2015 NewsGram

Next Story

Many Countries Refused To Endorse Landmark Study as Climate Conference Enters Second Week

The environmental ministers arrive at COP24 and many delegates hope that they will make every effort to include the IPCC report in the conference agenda.

0
Climate Change
Climate activists attend the March for Climate in a protest against global warming in Katowice, Poland, Saturday, Dec. 8, 2018, as the COP24 UN Climate Change Conference takes place in the city. VOA

As the U.N. global climate conference in Katowice, Poland entered its second week Sunday, the non-governmental environmental organization Greenpeace demanded urgent action from world leaders to tackle climate change.

Greenpeace activists projected a message onto the roof of the “Spodek” arena where the COP24 is being held, saying “No Hope Without Climate Action: and “Politicians Talk, Leaders Act.”

 

Amazon, Climate
Logs that were illegally cut from Amazon rainforest are transported on a barge on the Tapajos river, a tributary of the Amazon, near the city of Santarem, Para state. VOA

 

Disappointing many of the scientists and delegates at the conference, the United States, Russia, Saudi Arabia and Kuwait refused to endorse a landmark study on global warming which was to be the benchmark for future action in curbing the global warming.

The four nations wanted only to “note” but not “welcome” the report of the Intergovernmental Panel on Climate Change that was released in October, in keeping with the views of the Trump administration. With no consensus on including the report, the idea was dropped.

Climate Change, hurricane michael, Storms
In this photograph released by the Sri Lankan Air Force media division on May 29, 2017, flooding is seen in the country’s Matara district. VOA

U.S. President Donald Trump, who has announced he is pulling the United States out of the Paris climate agreement, tweeted Saturday that “people do not want to pay large sums of money … in order to maybe protect the environment.”

The IPCC’ report said that drastic actions would be needed to achieve the Paris accord’s most ambitious target of keeping global warming below 1.5 degrees Celsius. The report warned that the world was far from that target and heading more towards an increase of 3 degrees Celsius.

Also Read: To Help Poor Countries Adapt To Global Warming, World Bank Doubles Its Funding

On Monday, the environmental ministers arrive at COP24 and many delegates hope that they will make every effort to include the IPCC report in the conference agenda. (VOA)