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Sursa foto: Foto Agerpres
Researchers Oana Teodora Moldovan and Silviu Constantin from the Emil Racovita Institute of Speleology of the Romanian Academy recently signed an article in Nature journal, together with an international team of archaeologists and speleologists, that shows that there was a genetic transfer, resulting from the interbreeding between the Neanderthals and the first anatomically modern humans to arrive in Europe, agerpres.ro confirms.
Titled Initial Upper Palaeolithic humans in Europe had recently Neanderthal ancestry , the article was occasioned by the discovery, in 2020, by a team of specialists from the National Institute of Archeology of the Bulgarian Academy of Sciences and the Max Planck Institute for Evolutionary Anthropology in Leipzig, of human remains and stone tools characteristic of the beginning of the Upper Paleolithic in the Bacho Kiro Cave near the Bulgarian city of Veliko Tarnovo, informs the Romanian Academy.
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Retroviruses are re-writing koala genome and causing cancer
Koalas are facing multiple environmental and health issues which threaten their survival. Along with habitat loss – accelerated by last year’s devastating bush fires – domestic dog attacks and road accidents, they suffer from deadly chlamydial infections and extremely high frequency of cancer.
Wild Koala | Photo: A. Gillett
An international team of scientists led by the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) now demonstrate that a retrovirus invading the koala germline explains the high frequency of koala cancer. The results are reported in the journal Nature Communications.
The koala retrovirus (KoRV) is a virus which, like other retroviruses such as HIV, inserts itself into the DNA of an infected cell. At some point in the past 50,000 years, KoRV has infected the egg or sperm cells of koalas, leading to offspring that carry the retrovirus in every cell in their body. The entire k