New Study: Modern Humans Had Many Failed Attempts to Settle in Europe

Women from the Samburu tribe receive a food donation given due to an ongoing drought, in the town of Oldonyiro, Isiolo county, Kenya, October 8, 2021. (Reuters File Photo)
Women from the Samburu tribe receive a food donation given due to an ongoing drought, in the town of Oldonyiro, Isiolo county, Kenya, October 8, 2021. (Reuters File Photo)
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New Study: Modern Humans Had Many Failed Attempts to Settle in Europe

Women from the Samburu tribe receive a food donation given due to an ongoing drought, in the town of Oldonyiro, Isiolo county, Kenya, October 8, 2021. (Reuters File Photo)
Women from the Samburu tribe receive a food donation given due to an ongoing drought, in the town of Oldonyiro, Isiolo county, Kenya, October 8, 2021. (Reuters File Photo)

Modern humans made several failed attempts to settle in Europe before eventually taking over the continent. This is the stark conclusion of scientists who have been studying the course of Homo sapiens' exodus from Africa tens of thousands of years ago, according to a report by The Guardian.

Researchers have recently pinpointed sites in Bulgaria, Romania and the Czech Republic where our ancestors' remains have been dated as being between 40,000 to 50,000 years old. However, bone analyses have produced genetic profiles that have no match among modern Europeans.

"These early settlements appear to have been created by groups of early modern humans who did not survive to pass on their genes. They are our species' lost lineages. The crucial point is that the demise of these early modern human settlers meant Neanderthals still occupied Europe for a further few thousand years before Homo sapiens eventually took over the continent," said Professor Chris Stringer of the Natural History Museum, London.

Modern humans first appeared in Africa around 200,000 years ago and slowly evolved across the continent before moving into western Asia around 60,000 years ago. Our ancestors then spread across the globe until every other species of hominin on the planet had been rendered extinct, including the Denisovans of East Asia and Homo floresiensis, the "hobbit folk" of Indonesia.

Neanderthals in Europe were one of the last hominin species to succumb, dying out around 39,000 years ago. However, recent studies – outlined at a meeting of the European Society for the study of Human Evolution earlier this year – have shown that this takeover by Homo sapiens was not straightforward. On several occasions, groups of early settlers perished as they moved into the continent.

In one study, international researchers re-examined a partial skull and skeleton of a woman found in the Zlatý Kůň cave in the Czech Republic. Originally thought to have been 15,000 years old, this new analysis indicated it was probably at least 45,000 years old, making her one of the oldest members of Homo sapiens found in Europe. However, the study also found she shared no genetic continuity with modern Europeans.



French Scientists Find New Blood Type in Guadeloupe Woman

A French woman from the Caribbean island of Guadeloupe has been identified as the only known carrier of a new blood type. (AFP)
A French woman from the Caribbean island of Guadeloupe has been identified as the only known carrier of a new blood type. (AFP)
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French Scientists Find New Blood Type in Guadeloupe Woman

A French woman from the Caribbean island of Guadeloupe has been identified as the only known carrier of a new blood type. (AFP)
A French woman from the Caribbean island of Guadeloupe has been identified as the only known carrier of a new blood type. (AFP)

A French woman from the Caribbean island of Guadeloupe has been identified as the only known carrier of a new blood type, dubbed "Gwada negative," France's blood supply agency has announced.

The announcement was made 15 years after researchers received a blood sample from a patient who was undergoing routine tests ahead of surgery, the French Blood Establishment (EFS) said on Friday.

"The EFS has just discovered the 48th blood group system in the world!" the agency said in a statement on social network LinkedIn.

"This discovery was officially recognized in early June in Milan by the International Society of Blood Transfusion (ISBT)."

The scientific association had until now recognized 47 blood group systems.

Thierry Peyrard, a medical biologist at the EFS involved in the discovery, told AFP that a "very unusual" antibody was first found in the patient in 2011.

However, resources at the time did not allow for further research, he added.

Scientists were finally able to unravel the mystery in 2019 thanks to "high-throughput DNA sequencing", which highlighted a genetic mutation, Peyrard said.

The patient, who was 54 at the time and lived in Paris, was undergoing routine tests before surgery when the unknown antibody was detected, Peyrard said.

This woman "is undoubtedly the only known case in the world," said the expert.

"She is the only person in the world who is compatible with herself," he said.

Peyrard said the woman inherited the blood type from her father and mother, who each had the mutated gene.

The name "Gwada negative", which refers to the patient's origins and "sounds good in all languages", has been popular with the experts, said Peyrard.

The ABO blood group system was first discovered in the early 1900s. Thanks to DNA sequencing, the discovery of new blood groups has accelerated in recent years.

Peyrard and colleagues are now hoping to find other people with the same blood group.

"Discovering new blood groups means offering patients with rare blood types a better level of care," the EFS said.