Please don’t lick the science

What’s the difference between a person, an artifact, and an ecosystem?

Sarhan holds up a Petri dish of yeast cultured from Ötzi's stomach.

Sarhan et al. 2026

Ötzi the Iceman, Europe’s most famous mummy, is crawling with microbes, some long dead, some still eking out a living after thousands of years, and some very modern.