DNA shows Sahara was green and populated 1,000 years ago

There was a time, between 12,000 and 5,000 years ago, when the Sahara was populated and covered in luxurious vegetation, according to a recent DNA study. The reconstruction was by a group of international biologists coordinated by Fulvio Cruciani from the Sapienza University of Rome in a study published in the Genome Biology journal.

To solve the puzzle of human evolution in the Sahara, the researchers used an innovative technique of genetic sequencing with which they analyzed over 3 million DNA letters of 104 individuals. They focused especially on the Y chromosome, passed down from fathers only to their sons, identifying almost 6,000 genetic variants, half of which had never previously been described. The data show that genetic characteristics of North African and sub-Saharan male population were shaped by migrations in ancient times.

Comments

Boat with 300 migrants arrives in Spain after week at sea

A charity rescue vessel carrying mainly African migrants plucked off Libya docked in Spain, ending a traumatic journey which saw them spending Christmas at sea and several European nations denied the ship entry. Migrants look out from the deck of the Spanish NGO Proactiva Open Arms rescue vessel, after being rescued in the Central Mediterranean Sea on December 21, before disembarking in the port of Crinavis in Algeciras, Spain, Friday, December A Spanish aid boat carrying over 300 migrants rescued at sea arrived in Spain on Friday, ending a weeklong journey across the western Mediterranean. The boat, operated by the nonprofit group Proactiva Open Arms, docked at the Spanish port of Algeciras. The boat rescued 313 migrants in waters near Libya last week, but had to travel to Spain after Malta denied it permission to dock and Italy and other countries refused to help. Three of the migrants were later evacuated for health reasons. Oscar Camps, head of Proactiva Ope

African Politicians Seeking Medical Help Abroad Is Shameful, and Harms Health Care

Credit: Tahiru Azaaviele Liedong, University of Bath Photo: Allafrica.com Top-left: Nigerian President Muhammadu Buhari. Top-right: Former president of Zamiba Levy Mwanawasa. Bottom-left: Former Ethiopian prime minister Meles Zenawi. Bottom-right: Former Guinea-Bissau president Malam Bacai Sanhá ANALYSIS By Tahiru Azaaviele Liedong, University of Bath There is an African idiom that if a man does not eat at home, he may never give his wife enough money to cook a good pot of soup. This might just be true when applied to politicians on the continent seeking medical help anywhere but home. Africa's public health systems are in a depressing condition. Preventable diseases still kill a large number of women and children , people travel long distances to receive health care, and across the continent, patients sleep on hospital floors . On top of this, Africa's health profession

Carthy calls on Coveney to intervene in case of Hunger-striking refugees in Greece

Sinn Féin MEP Matt Carthy has called on the Minister for Foreign Affairs Simon Coveney to urgently intervene in the case of asylum seekers in Greece who have been on hunger strike for over a month. Bahrooz Arash, and Kozhin Hussein are demanding an end to arbitrary imprisonment and inhumane treatment including psychological and physical abuse of refugees in Moria detention centre. Matt Carthy said: “I have contacted the Irish Minister for Foreign Affairs, The Irish Embassy in Greece and Christos Stylianides EU Commissioner for Humanitarian Aid & Crisis regarding the disturbing case of asylum seekers in Greece who have been on hunger strike for over a month now. “The Hunger strikers are seeking an end to arbitrary imprisonment and inhumane treatment including psychological and physical abuse of refugees in Moria detention centre. “Bahrooz Arash is now in a particularly bad condition having lost 16kgs since his hunger strike began. “Despite medical opinion th

Mcthomas updates

Search This Blog