Mystery Humans Apparently Helped Spice up Sex Lives of Ancient Hominins

Mystery Humans Apparently Helped Spice up Sex Lives of Ancient Hominins

A research report was recently published in the science journal Nature that discussed mystery humans apparently helped to spice up the sex lives of ancient hominins. This was discovered by the high quality genome sequence that was pulled out of a female Neanderthal foot bone. Apparently it revealed that the woman’s parents were closely related and such inbreeding was wide spread between her recent ancestors, but the arrangement also shown that interbreeding happened between Neanderthals and other hominin groups, which included early modern humans.

There used to be numerous closely related human species living on Earth at the same time. Genetic analyses on various bone pieces from both Neanderthals and Denisovans have allowed scientists fresh insight into the not so distant evolutionary past. The outcome has shown that not only did Neanderthals and Denisovans inbreed with contemporary Homo sapiens, but they also bred with an unidentified fourth hominin species.

Neanderthals are believed to have appeared around 200,000 years ago and their remains have been discovered all through Europe and stretching into parts of middle Asia. While Neanderthals were not as cognitively progressive as Homo sapiens who showed up about the same time, they were most likely the first hominins believed to wear clothing, bury their deceased and form types of language. Scientists have conventionally believed that the last shared ancestor of Neanderthals and Homo sapiens existed about 500,000 years ago, though new research proposes it may have been somewhat earlier.

Denisovans were an hominin group that became extinct but are a piece of evolutionary lineage. Knowledge of them has come from pieces of bone discovered inside a cave that dated back about 50,000 years. Even though genetic testing had been completed several years ago, the results were not clear. However new-fangled procedures have generated much more far-reaching genetic sequences and two new studies have released diverse yet connected results.

There is evidence  today of certain human populations who are alive today have gotten almost as much as five percent of their DNA from Denisovans, although there is some deliberation about it. In addition, there are individuals who have ancestries separate from Africa that might have received around two percent of their genomes from Neanderthals, although there is a level of conjecture with this as well.

At the present time, the identity of the fourth early human group is a mystery. They could have come from Asia, but that has never been declared as being certain as of the present time. Upcoming research will, with any luck, be able to identify the mysterious group of inhabitants and aid scientists in better understanding the various evolutionary inputs that have made modern humans the way they are. Updated genome classifications from two extinct relatives of modern humans advocate that each of these groups bred with humans and also with each other much more than was formerly known.

The Denisovan genome specifies that their inhabitants got around. They bred with both Neanderthals and also the ancestors of modern humans in China and other places around East Asia. Even more unexpectedly, the genomes point to the fact that Denisovans inbred with the fourth extinct human population who lived in Asia about 50,000 years ago and were considered actually neither human nor Neanderthal.

Scientists have been buzzing about the identity of the unknown human population. Chris Stringer, who works as a paleontologist at a museum in London, stated that scientists do not have any idea. He wonders if maybe the population might be related to Homo heidelbergensis. They were believed to be a species that moved out of Africa about 500,000 years ago and might have later actually gave rise to the Neanderthals themselves in Europe. They may have resided on parts of Asia as well but no one knows for sure. A research report was recently published in the science journal Nature that discussed a high quality genome sequence that was gotten from a female Neanderthal toe bone

By Kimberly Ruble

Sources:

The Scientist

Scientific American

Nature News

 

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