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Researchers have long been puzzled by the observed A protein called neurofilament light chain (NfL)—studied in humans in the context of neurodegenerative diseases and aging—is also detectable in the blood of numerous animals, and NfL levels increase with age in mice, cats, dogs and horses. Experts from the DZNE and the Hertie Institute for Clinical Brain Research (HIH) at the University of Tübingen report these findings in PLOS Biology. In their view, this biomarker could help to assess the biological age of animals and estimate their life expectancy. A Ukrainian man has been sentenced for helping Nor “The grounds for relief that Tesla relies up Mercury pollution from coal plants has been tied
Two skulls from Yunxian, in northern China, aren’t ancestors of Denisovans after all; they’re actually the oldest known Homo erectus fossils in eastern Asia. A recent study has re-dated the skulls to about 1.77 million years old, which makes them the oldest hominin remains found so far in East Asia. Their age means that Homo erectus (an extinct common ancestor of our species, Neanderthals, and Denisovans) must have spread across the continent much earlier and much faster than we’d previously given them credit for. It also sheds new light on who was making stone tools at some even older archaeological sites in China. Homo erectus spread like wildfire Yunxian is an important—and occasionally contentious—archaeological site on the banks of central China’s Han River. Along with hundreds of stone tools and animal bones, the layers of river sediment have yielded three nearly complete hominin skulls (only two of which have been described in a publication so far). Shantou University paleoanthropologist Hua Tu and his colleagues measured the ratio of two isotopes, aluminum-26 and beryllium-10, in grains of quartz from the sediment layer that once held the skulls. The results suggest that Homo erectus lived and died along the Han River 1.77… President Donald Trump has plenty of work to do to Anthropic doesn’t want its AI used in autonomous The new Threads feature lets you share your posts Lunar dust remains one of the biggest challenges f