A new genetic analysis of archaeological finds has shown that some of the early inhabitants of Europe mysteriously disappeared by the end of the last ice age, and were largely replaced by other.
The discovery was confirmed by the analysis of dozens of ancient fossils, collected throughout Europe. Genetic replacement is likely to be the result of rapid climate change, which earlier inhabitants of Europe are unable to adapt quickly enough, says study co-author, Cosimo Post, archaeogenetic doctoral student at the University of tübingen in Germany.
The temperature change at the time was “huge compared to climate change in this century” . — told the Post. “Imagine that the environment has changed quite dramatically”.
Twisted family tree
Europe has a long and complicated genetic heritage. Genetic studies have shown that the first modern humans who came from Africa, somewhere between 40 and 70 thousand years ago, soon began to mate with local Neanderthals. At the beginning of the agricultural revolution, 10-12 thousand years ago, farmers from the Middle East walked across Europe, gradually displacing the local hunter-gatherers. thousand years ago, nomadic horsemen called Yamna came from the steppes of the present Ukraine and mingled with the local population. In addition, according to the survey for 2013, published in the journal Nature Communications . found another lost group of ancient Europeans mysteriously vanished about 4.5 thousand years ago. Continue reading
About three dozen metro stations can be considered as branches of the paleontological Museum. In their marble cladding can be found ancient fossils.
For some, the search for traces of the Jurassic period has turned into a hobby. Muscovite Alexander Mironenko walking in the subway and shoots shellfish, lilies and other ancient inhabitants, some over 100 million years. In his collection of over 700 images.
NAUTILUS AND SEA LILY
In 2000, the student Mironenko was on geological practice in suburban quarries. “We’ve seen a lot of fossils — the remains of ancient plants, animals, — tells Sasha. — And in Moscow, looking out the window of the carriages of the trains, a girl from our group shouted: “Look, Nautilus [clam]!” No it is, of course, not believed, laughed. But everything began to carefully examine the walls and floor at the stations. And that evening on the way home I found a Nautilus shell in the wall of the lobby on “Dobryninsky”. Sasha is now examined more than 100 stations. On his hunt he gets about once a month.
Especially a lot of fossils on the first built stations — then they were faced with natural marble. “Look closely to the walls of the old lines — red, blue, ring —advises Mironenko. — There is a very curious fossils”. According to him, “Dobryninskaya” and “Biblioteka imeni Lenina”.
If to come on “Dobryninsky” from the “Taganskaya”, approximately where the last stop of the car in the wall in a beautiful red marble you can see a scattering of sea lilies. And in the area of the first carriage — Nautilus with a diameter of 10-15 centimeters. Interesting because its shell is cut so well that you can see all the internal partitions. Not all museums have these items. And the “Library” near the transition to the “Borovitskaya” in yellow marble imprinted ductwork-rudist and gastropod shellfish of the Paleozoic era. The age of the mollusc — about 100 million years. Continue reading
Mass extinction of Indians in America in the seventeenth century is most likely connected with the activity of Catholic missionaries who began to preach vigorously in the New World in the years 1621-1626, and not with the arrival of the conquistadors, as previously thought. To this conclusion came a group of archaeologists from Harvard University (USA), completed a major study of the remains of Indians from the time of Columbus, reports RIA Novosti.
As you know, most of the American Indians didn’t die from physical destruction by the conquerors, but because of the diseases, brought by Europeans. However, the subject of dispute the question remains, when exactly it happened. Previously it was thought that the mass extinction of the indigenous population of America began immediately after the arrival of Europeans, the first settlers, the conquistadors. However, in 2014, geneticists have determined that the ancient inhabitants of Peru had already had TB, even though he was considered one of the causes of extinction of Indians in the era of Columbus.
Group Matthew Liebmann of Harvard University examined the human remains from ancient settlements on the territory of modern new Mexico. The researchers used a laser radar to “look” under a layer of soil and examine what is at depth. Thus were established the true size of each settlement, the number of the people living there, and takeapart when a massive extinction. Continue reading