NATURE PODCAST

16 October 2026

Nature staff discuss a new ink that could be useful for medical tattooing — plus, an insight into why small dogs live longer than big ones.

By

Benjamin Thompson

Maren Hunsberger

Download the Nature Briefing podcast 16 October 2026

In this episode:

00:15 An appearing, disappearing tattoo ink

Nature: Watch this invisible tattoo appear under UV light

04:13 How the epigenome could help explain why big dogs age faster

Nature: Big dogs age faster than little ones — rogue ‘jumping genes’ might be to blame

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doi: https://doi.org/10.1038/d41586-026-03341-3

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