First paragraph (55-75 words) Neanderthals crafted birch tar from heated bark, using it as adhesive for tools. Recent research reveals its antiseptic properties, slowing growth of Staphylococcus aureus (S. aureus) bacteria. This challenges assumptions about Neanderthal medical knowledge, showing they understood wound care.

Second paragraph (55-75 words) Testing birch tar against S. aureus and E. coli found it effective against S. aureus but not E. coli. The most potent extract came from silver birch (Betula pendula), with results varying by species. This aligns with Indigenous practices like the Mi’kmaq using maskwio’mi for skin infections.

Third paragraph (55-75 words) The study connects Neanderthal birch tar use to traditional knowledge, suggesting medicinal applications predated written history. Chemical analysis shows phenolic derivatives in the tar target Gram-positive bacteria, similar to modern antiseptics like chlorhexidine.

Fourth paragraph (55-75 words) While less potent than antibiotics like Gentamicin, birch tar’s accessibility highlights Neanderthal resourcefulness. This discovery adds depth to Neanderthal life beyond tools, revealing complex understanding of natural medicine. Neanderthal birch tar antiseptic use reshapes views of prehistoric healthcare.