Bacteria plus iron equals ochre, the prehistoric paint
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English - November 26, 2020 05:00 - 4 minutes - 2.23 MB - ★★★★★ - 12 ratingsNews news adirondacks north country public radio Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
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(Nov 26, 2020) Martha Foley and Curt Stager talk about ochre. It’s more than just a color in the Crayola box.