Days after fire destroyed irreplaceable specimens at Brazil’s National Museum, scientists quantified the fossils that sit in natural history collections around the world, estimating that only 3 to 4 percent of these “dark data” are currently accounted for in published scientific literature.

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Days after fire destroyed irreplaceable specimens at Brazil’s National Museum, scientists quantified the fossils that sit in natural history collections around the world, estimating that only 3 to 4 percent of these “dark data” are currently accounted for in published scientific literature.