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Two new papers urge caution in using powerful genome-editing technology against invasive species: Models show that aggressive gene drives can’t be contained in the wild.
How many Neanderthals were there? Archaeology and genetics have given very different answers. A new study reconciles them and reveals the lost history of these ancient people — including an early brush with extinction.
The discovery that viruses move between species unexpectedly often is rewriting ideas about their evolutionary history — and may have troubling implications for the threat from emerging diseases.