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Briefing Chat: An invisible tattoo that appears under UV light – and then disappears

Briefing Chat: An invisible tattoo that appears under UV light – and then disappears

Feed excerpt — reported by Nature

Nature, Published online: 16 October 2026; doi:10.1038/d41586-026-03341-3Nature staff discuss a new ink that could be useful for medical tattooing — plus, an insight into why small dogs live longer than big ones.

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