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Human Evolution News 26 August 2025 - 27 September 2025

1-Million-Year-Old Skull Found in China Could Rewrite Human Evolution

1-Million-Year-Old Skull Found in China Could Rewrite Human Evolution

These key points set the stage for a detailed exploration of the new study and its implications. In the sections below we explain the discovery and reconstruction of the skull, compare it with other recent finds, and examine what experts are saying about how it might upend our understanding of human origins. The Yunxian 2 Skull: Discovery and Digital Reconstruction The fossil at the heart of this story is the Yunxian 2 cranium, unearthed in 1990 from a river terrace in Yunxian (Hubei). For decades the specimen sat in a museum, considered an indeterminate Homo erectus fossil because it was
Neanderthal-Human Hybrid Shocks Scientists; AI Breakthroughs & More – Science Roundup (Aug 25–26, 2025)

Neanderthal-Human Hybrid Shocks Scientists; AI Breakthroughs & More – Science Roundup (Aug 25–26, 2025)

Cell Metabolism reports that gut bacteria–produced D-lactate leaks into the bloodstream to drive hepatic overproduction of glucose and fat, and a safe polymer trap in the gut bound D-lactate to improve blood sugar, insulin resistance, and fatty liver in obese mice (senior author Professor Jonathan Schertzer). Baylor College of Medicine researchers show metformin’s brain action: suppression of Rap1 in the hypothalamus is required for glucose lowering, with Rap1-lacking mice unresponsive to low-dose metformin and brain infusion lowering blood sugar in diabetics (Science Advances; lead author Dr. Makoto Fukuda). A global study of over 100,000 youths links first smartphone ownership by
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