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New NSF rule requires tribal approval for research affecting their interests

Many see the change as long overdue but expect new burdens on researchers and tribes

Earthworms have ‘completely scrambled’ genomes. Did that enable their ancestors to leave the sea?

Chaotic rearrangements of chromosomes may have helped leeches swim into fresh water and other worms wriggle onto land

Breakthrough promises new era of ultraprecise nuclear clocks

Timekeepers based on energy transitions in atomic nuclei could be stable, portable, and able to probe new physics

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