reallykindasorta

Published Summary: Neanderthal genomes have been recovered from sites across Eurasia, painting an increasingly complex picture of their populations’ structure that mostly indicates that late European Neanderthals belonged to a single metapopulation with no significant evidence of population structure. Here, we report the discovery of a late Neanderthal individual, nicknamed “Thorin,” from Grotte Mandrin in Mediterranean France, and his genome. These dentognathic fossils, including a rare example of distomolars, are associated with a rich archeological record of Neanderthal final technological traditions in this region ∼50–42 thousand years ago. Thorin’s genome reveals a relatively early divergence of ∼105 ka with other late Neanderthals. Thorin belonged to a population with a small group size that showed no genetic introgression with other known late European Neanderthals, revealing some 50 ka of genetic isolation of his lineage despite them living in neighboring regions. These results have important implications for resolving competing hypotheses about causes of the disappearance of the Neanderthals.

Snippet: “Life during prehistory was believed to be as Thomas Hobbes described: “nasty, brutish and short.” However, this new study shows these teens were actually quite healthy. Most individuals in the study sample entered puberty by 13.5, reaching full adulthood between 17 and 22 years old. This indicates these Ice Age adolescents started puberty at a similar time to teens in modern, wealthy countries.”

Link to research study (open access)

The study(not open access), published today in *Science *and co-led by the University of Bristol and China University of Geosciences (Wuhan), has shed new light on why the effects of rapid climate change in the Permian-Triassic warming were so devastating for all forms of life in the sea and on land.

What AR games are good for runners? I’ve played Run an Empire and Zombies! Run which are okay but looking for other options in the genre where I can use my fitness activity to gather resources and build when I’m at home or similar.

There is no reason to require this setting for users who aren’t posting live videos.

I love the concept of apple’s in house journal app which allows you to create dated posts that include text, videos, and photos. I hate the idea of writing anything private in a journal hosted by apple as well as the fact that apple could discontinue at any time. Any ideas on a way to achieve something similar in a clean interface (a long word document wouldn’t cut it) without the middle man? A dedicated un-networked device even?

Link to research article (open access)

Snippet: “"It was extremely exciting to be able to count the chromosomes of an extinct creature for the first time. It's usually not possible to have this much fun simply counting from one to 28."

By examining the fossil chromosomes, which derived from the mammoth's skin, it was possible to see which genes were active. This is because of a phenomenon called chromosome compartmentalization—the fact that active and inactive DNA tends to segregate into two spatial neighborhoods inside the cell nucleus. For most genes, the activity state matches what researchers saw in modern elephant skin. But not always.

"The obvious question for us was: why is it a 'woolly mammoth?' Why isn't it a 'shockingly bald mammoth?'" said Dr. Thomas Gilbert, director of the Center for Hologenomics and co-corresponding author of the paper.

"The fact that the compartmentalization was still preserved in these fossils was critical, because it made it possible to look, for the very first time, at which genes were active in a woolly mammoth. And it turns out that there are key genes that regulate hair follicle development whose activity pattern is totally different than in elephants."

Researchers learned much but they were left with a puzzle: how could the DNA fragments of ancient chromosomes possibly survive for 52,000 years with their three-dimensional structure intact? After all, in 1905—his 'annus mirabilis,' or 'miracle year'—Albert Einstein published a classic paper calculating how quickly small particles, like bits of DNA, tend to move through a substance.

"Einstein's work makes a very simple prediction about chromosome fossils: under ordinary circumstances, they shouldn't exist," Dudchenko said. "And yet: here they are. It was a physics mystery."

To explain this apparent contradiction, the researchers realized that the chromosome fossils were in a very special state, closely resembling the state of molecules in glass. "Chromoglass is a lot like the glass in your window: it's rigid, but it's not an ordered crystal," said Dr. Erez Lieberman Aiden, co-corresponding author of the study, director of the Center for Genome Architecture and professor at the Baylor College of Medicine.“

https://www.ancient-origins.net/news-evolution-human-origins-ancient-places-asia/jabal-kaf-addor-rock-shelter-0021004

It was a decent