Antibacterial properties of experimentally produced birch tar and its medicinal affordances in the Pleistocene (IMAGE)

PLOS

Antibacterial properties of experimentally produced birch tar and its medicinal affordances in the Pleistocene

Caption

The bark of birch trees has been used to produce tar for more than 150,000 years. The center photo shows birch bark tar condensed onto a rock that borders a hearth. When scraped off the rocks, the viscous tar can be used as both an adhesive and antibiotic.

Credit

Tjaark Siemssen, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

Usage Restrictions

Credit must be given to the creator.

License

CC BY

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