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Science & Nature A combination of data sources from fossil mammal sites pushes back the date of C4 grassland expansion in eastern Africa by...

Plus: Bing goes off the rails This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. Welcome to the oldest part of the metaverse Today’s headlines treat the metaverse as a hazy dream yet to be built. But if it’s defined as a

Today’s headlines treat the metaverse as a hazy dream yet to be built, but if it’s defined as a network of virtual worlds we can inhabit, its oldest extant corner has been already running for 25 years. It’s a medieval fantasy kingdom created for the online role-playing game Ultima Online—and it has already endured a

Neanderthal art was perhaps more abstract than the stereotypical figure and animal cave paintings Homo sapiens made after Neanderthals disappeared about 30,000 years ago. The...