BBC News – Living Pigments

Black fungi with yellow "fruiting bodies" (left), alongside red bacteria, give one work its coloursProfessor Pettigrew and his colleagues studied 80 of these Bradshaw rock artworks – named for the 19th-Century naturalist who first identified them – in 16 locations within Western Australia’s Kimberley region.

They concentrated on two of the oldest known styles of Bradshaw art – Tassel and Sash – and found that a vast majority of them showed signs of life, but no paint.

The team dubbed the phenomenon “Living pigments”.

via BBC News – Ancient rock art’s colours come from microbes.

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