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monkeys

Scientists Make Human-Monkey Embryos

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dna - pixabay

Scientists injected dozens of human stem cells into developing monkey embryos, and the resulting hybrids survived for up to 20 days in lab dishes. These human-monkey embryos could someday serve as helpful models for human disease, embryonic development and aging, the study authors noted in a new report, published April 15 in the journal Cell. By zooming in on the interaction of human and animal cells in the embryos, scientists could also learn how to help human cells survive amongst animal cells, potentially advancing the effort to grow human organs in living animal models. Such studies would offer a window … Read more

Scientists Discover “Engine of Consciousness” – In Monkeys

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macaque - pixabay

A team of researchers has found an “engine of consciousness” in the brain — a region where, in monkeys at least, even a little jump start will make them wake up from anesthesia. Consciousness is a mystery. We don’t know for certain why creatures are sometimes awake and sometimes asleep, or which mechanisms in the brain are most important for a conscious state. In this new paper, though, researchers turned up some important clues. Using electrodes across the brains of awake and sleeping macaques, as well as macaques under different forms of anesthesia, the team found two key pathways in … Read more