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New Discovery Shows Human Cells Can Write RNA Sequences Into DNA – Challenges Central Principle in Biology
(scitechdaily.com)
In a discovery that challenges long-held dogma in biology, researchers show that mammalian cells can convert RNA sequences back into DNA, a feat more common in viruses than eukaryotic cells. Cells contain machinery that duplicates DNA into a new set that goes into a newly formed cell. That same clas...
Research at an archaeological site near Laguna challenges the hypothesis that the Southern JĂŞ’s ancestors displaced the communities that constructed shell middens and burial mounds (sambaquis) along the coast of Santa Catarina state for over 5,000 years. Brazilian researchers have revised the ...
New research from ANU reveals that Neanderthals in the Southern Pyrenees were highly adaptable and skilled in diverse hunting, challenging old stereotypes and providing insights into their survival and eventual extinction. An unexplored region in the foothills of the Southern Pyrenees in Spain is sh...
Collaborative research integrating innovative analytical techniques with traditional field geology, conducted in one of the world’s leading geologic laboratories, has provided fresh insights into the Cambrian explosion of life. Earth’s 4.6-billion-year history has been dominated by single-cell...
Deep within Earth’s mantle lie two enormous, continent-sized structures known as LLVPs. Scientists once believed these regions were similar, but groundbreaking research has revealed they have vastly different compositions and histories. The Pacific LLVP is younger and enriched with oceanic crust due...
Discovery of 1.5-Million-Year-Old Bone Tools Rewrites Our Understanding of Early Human Technology
(scitechdaily.com)
Before this discovery in Tanzania’s Olduvai Gorge, in which CENIEH participated, researchers believed that hominins only occasionally made bone tools. This finding suggests that toolmaking may have played a role in shaping more advanced cognitive patterns and establishing a standardized set of behav...
Curiosity arrived at a ridge-rich site that might be Mars’ version of a boxwork structure, but a perched wheel prevented close analysis. Instead, the rover unleashed a suite of cameras and sensors to document its strange new surroundings while prepping for a Friday return. Curiosity has rolled into ...
We may be witnessing the moment when our ancestors first defied a hostile world, using the same tools in the same place for nearly 300,000 years despite the chaos of shifting climates. Picture early humans carefully shaping stone tools over a span of nearly 300,000 years, all while facing frequent w...
Scientists have introduced a new technique for uncovering the ancient history of Earth’s landscapes. The method can shed light on how environments respond to geological activity and climate change, while also helping identify areas that may contain valuable mineral deposits. Curtin University scient...
A large global genetics study shows that many key drivers of Type 2 diabetes operate outside the bloodstream. Scientists are getting a clearer picture of why Type 2 diabetes is so hard to pin down. In a major international project led in part by the University of Massachusetts Amherst and Helmholtz ...
A potential new mineral on Mars forms when iron sulfates are heated above 100°C. Data from Valles Marineris regions suggest geothermal processes altered ancient sulfate deposits. A study published in Nature Communications reports the discovery of an iron sulfate on Mars that may represent a previous...