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Known as “puddling,” swarms of neon-green sulphur butterflies gather on the banks of the Essequibo River to extract essential minerals—sodium, nitrogen and more—from the moist soil.
Photo: Steve Duda
Known as “puddling,” swarms of neon-green sulphur butterflies gather on the banks of the Essequibo River to extract essential minerals—sodium, nitrogen and more—from the moist soil.
Photo: Steve Duda
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