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Tens of thousands of years ago, our species – Homo Sapiens – mixed and turned with other prehistoric people: our distant cousins, the Neanderthals and Denisovans.
Hundreds of Neanderthal fossils give us a good idea of their appearance, their life and their relationships, but there is so little known about Denisovans that they still have no official scientific names.
The proof of their existence has appeared in weak traces that are assigned by DNA markers that lurk in our own genetic make -up and were only confirmed by a few fossil fragments.
This week, a 146,000 -year -old skull from a fountain in China in 2018 could only be an important missing piece for this cryptic evolutionary puzzle.
A long time ago
The almost complete skull, which was recovered from a fountain in Harbin, China, comes from at least 146,000 years. – Hebei Geo University
The almost complete skull did not match the previously known species of prehistoric people.
However, two new studies – the researchers say, are among the largest paleoanthropology papers of the year – in detail how scientists extract genetic material from the fossil and contribute to leaving this biological secret.
The DNA rehearsal, which was taken from “Dragon Man”, as the copy is called, showed that it was actually related to Denisovan’s early people, which was assumed that they lived about 500,000 and 30,000 years ago.
The knowledge could be monumental and help to paint a more comprehensive picture of a time in which our own way was together with other prehistoric people.
About the universe
Astronomers have long dealed with the dilemma of “dark matter”, but also many puzzles surrounded the normal matter.
The proton-and-neutron-based atoms we familiarize us are referred to as baryonic matter. And this material is scattered between galaxies such as intergalactic fog, which makes it extremely difficult to measure.
Maybe that’s so far.
A new study explains how scientists were able to observe the baryonic matter with flashing fast radio.
Oceans
In a rare encounter, scientists recorded the first film material of a difficult -to -tapes 3 feet long inkfish, which lives in his habitat for deep sea.
Dug
Fruit, flowers, birds and musical instruments decorated the walls of a luxury villa part of a site that the excavation team described as the “Beverly Hills” of the Roman Britain before the building was destroyed about 1,800 years ago.
The frescoes were carefully composed by experts from the Museum of London Archeology. Han Li, Senior Building Materials Specialist at Mola, described the efforts as a “unique opportunity”.
The Romans marched in today’s Great Britain in November 4 and founded Londinium, the forerunner of the modern London. The job lasted almost 400 years.
Curiosities
Scientists say that sericosura seasants with methane-powered bacteria can come by as a light food source. – Shana Goffredi
Under the life -affirming glow of the sun, methane is a dangerous gas that must be avoided.
Methane, a chemical pollutant of heat trapping in the earth’s atmosphere, worsens the climate crisis. But within the deep niche of the planet – thousands of foot under the surface of the ocean off the west coast of the USA – the gas can be transformed into a nutritious meal.
At least for spiders.
Scientists say they have discovered three previously unknown types of sea spiders who live around Methan -Sicker. In these marine habitats in which sunlight cannot reach, gas escapes through cracks in the sea floor and feeds bacteria that stick to the exoskeleton of the spiders.
The bacteria convert carbon -rich methane and oxygen into sugar and fats that the spiders can eat according to a new study.
The newly discovered Sericosura Seebllinnen can pass on to their young animals as a light food source with methane-powered bacteria.
Note
Take a look at these other must-read science stories from the week:
-A SpaceX starship rocket exploded on Wednesday during a routine floor test. Explore how these and other recent setbacks can affect the company’s Mars ambitions.
– A tiny brown moth in Australia migrated around 600 miles with the stars to navigation – something that only people and birds were known before.
– Anomal signals made of antarctic ice found a hunt for ghostly cosmic particles. A new detector could help scientists explain what they are.
– Researchers used DNA to reconstruct the face of a prehistoric woman who lived in today’s Belgium about 10,500 years ago, which indicates that the skin color was already considerably different between different populations.
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