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Researchers Find Hints to a ‘Ghost’ Species of Ancient Human in Africa

In a new analysis of a protein found in saliva, researchers discovered evidence of archaic admixture in modern people living in sub-Saharan Africa, indicating that another species had contributed to the genetic material of their ancestors.

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Ghost Species
Evolution of homosapien. Pixabay
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July 23, 2017: Researchers revealed ancient Africans may have involved in a ‘sexual rendezvous’ with a ‘ghost’ species of archaic humans. The new research is among more recent genetic studies showing that ancient Africans also had rendezvous with other early hominins.

The research summed to a growing body of evidence implying that sexual rendezvous between different archaic human species may not have been unusual.

In saliva, University at Buffalo scientists detected hints that a “ghost” species of archaic humans contributed genetic material to ancestors of people living in Sub-Saharan Africa today.

Also Read: Ancient Human Ancestor was Tallest known member of Prehuman Species, best known for Fossil Skeleton nicknamed “Lucy” 

“It seems that interbreeding between different early hominin species is not the exception – it’s the norm,” said lead researcher Omer Gokcumen to Business Standard.

“Our research traced the evolution of an important mucin protein called MUC7 that is found in saliva,” he remarked. “When we looked at the history of the gene that codes for the protein, we see the signature of archaic admixture in modern day Sub-Saharan African populations.”

The researchers came upon their discoveries while exploring the reason and origins of the MUC7 protein, which helps give spit its slimy consistency and ties to organisms, possibly freeing the assortment of sickness causing microscopic organisms.

The examination inferred that MUC7 seems to impact the structure of the oral microbiome, the accumulation of microorganisms inside the mouth. The proof for this originated from an examination of organic specimens from 130 individuals, which found that diverse forms of the MUC7 quality were connected with various oral microbiome compositions.

“From what we know of MUC7, it makes sense that people with different versions of the MUC7 gene could have different oral microbiomes,” lead researcher Stefan Ruhl said. “The MUC7 protein is thought to enhance the ability of saliva to bind to microbes, an important task that may help prevent disease by clearing unwanted bacteria or other pathogens from the mouth.”

-By Staff writer at Newsgram

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  • Mary

    correction, the boy was arrested for “beastiality”, see they even have a word for it and have made it illegal. 😉 Nothing is proscribed unless it is occurring. Disgusting nevertheless… pure animal behavior.

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As Climate Talks Come to a Halt, Africa Suffers From Global Warming

The World Health Organization warns that climate change will exacerbate the impact of some disease and health problems.

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Drought, Climate change, global warming
A farmer stands on cracked earth that three weeks earlier created the bottom of a reservoir on his farm, in Groot Marico, South Africa. VOA

Efforts to boost global action against climate change are stuttering, as several key nations have objected to a key United Nations-backed report on the impacts of rising temperatures at the COP24 talks in Poland.

Many developing nations say they are already suffering from the impact of climate change, especially in south Asia and Africa, where water shortages and intense storms are putting lives and livelihoods in danger.

In Malawi in southern Africa, a bustling fish market stood at Kachulu on the shores of Lake Chilwa just five months ago. Now, hundreds of fishing boats lie marooned across the vast bay as vultures circle over the cracked, sun-baked mud. Water levels here fluctuate annually, but scientists say climate change is making the seasonal dry-out of the lake far more dramatic. Fishermen are being forced to leave and look for work elsewhere, says Sosten Chiotha, of the non-governmental organization ‘LEAD’ – Leadership for Environment and Development.

“Climate change contributes to the current recessions that we are experiencing, because you can see that in 2012 there was a recession where the lake lost about 80 percent of its water. Then it recovered in 2013, but not fully. So since then every year we have been experiencing these recessions,” Chiotha said.

Scientists gathering at the COP24 climate talks say it is developing countries like Malawi that are being hit hardest by the impacts of climate change.

The charity Water Aid has released a report ranking the countries worst-hit by water shortages, with Sudan, Niger and Pakistan making up the top three.

“There are people who are living with the impact of climate change right now. And they’re feeling those impacts not through carbon, but through water. And as we’ve seen over the past few years and will continue to see for many years to come unfortunately, is a huge increase in water stress and absolute water scarcity,” Water Aid’s Jonathan Farr told VOA from the climate talks currently underway in the Polish city of Katowice.

Richer nations have pledged $100 billion a year for poorer nations to deal with the consequences of climate change. Water Aid says they are failing to deliver the money.

Scientists say emissions of carbon dioxide would have to be reduced by 45 percent by 2030 to have any hope of keeping global warming below 1.5 degrees Celsius – the target agreed in the Paris climate deal.

 

 

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

However, the number of coal-fired power stations – the most polluting for

m of energy generation – is growing. The German organization ‘Urgewald’ calculates that $478 billion had been invested into expansion of the coal industry between January 2016 and September 2018.

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

Meanwhile the World Health Organization warns that climate change will exacerbate the impact of some disease and health problems, including malaria, malnutrition and heat exposure.

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

There is little optimism at the talks that much concrete progress will be made, as several countries including the United States, Russia and Saudi Arabia have already voiced objections to a key scientific report from the U.N.’s Intergovernmental Panel on Climate Change. (VOA)