Bone remains found in a Tibetan cave 3,280 m above sea level indicate an ancient group of humans survived here for many millennia, according to a new study published in Nature.

The Denisovans are an extinct species of ancient human that lived at the same time and in the same places as Neanderthals and Homo sapiens. Only a handful of Denisovan remains have ever been discovered by archaeologists. Little is known about the group, including when they became extinct, but evidence exists to suggest they interbred with both Neanderthals and Homo sapiens.

A research team led by Lanzhou University, China, the University of Copenhagen, Denmark, the Institute of Tibetan Plateau Research, CAS, China, and involving the University of Reading studied more than 2,500 bones from the Baishiya Karst Cave on the high-altitude Tibetan Plateau, one of the only two places where Denisovans are known to have lived.

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Rather than living longer, otherwise healthy people who took daily multivitamins were slightly more likely (4%) than non-users to die in the study period, according to researchers.

Researchers reported nearly 165,000 deaths occurring during the follow-up period of the study, out of the initial group of 390,000 participants.

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CocoaPods patches critical vulnerabilities that exposed thousands of iOS and macOS apps to supply chain attacks.

Summary: Advances in organoids and embryonic models raise questions about human individuality. A new study argues these models can reinforce, not weaken, the concept of human individuality when viewed through personhood and sentience frameworks.

Researchers emphasize that current technologies are far from achieving personhood in embryo models or organoids. The ethical focus should remain on the wellbeing of actual persons and sentient beings.